WO1994026864A1 - Agent nettoyant et procede et appareil de nettoyage - Google Patents
Agent nettoyant et procede et appareil de nettoyage Download PDFInfo
- Publication number
- WO1994026864A1 WO1994026864A1 PCT/JP1994/000796 JP9400796W WO9426864A1 WO 1994026864 A1 WO1994026864 A1 WO 1994026864A1 JP 9400796 W JP9400796 W JP 9400796W WO 9426864 A1 WO9426864 A1 WO 9426864A1
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- WIPO (PCT)
- Prior art keywords
- cleaning
- washing
- agent
- component
- detergent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/50—Solvents
- C11D7/5004—Organic solvents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/50—Solvents
- C11D7/5004—Organic solvents
- C11D7/5009—Organic solvents containing phosphorus, sulfur or silicon, e.g. dimethylsulfoxide
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/26—Cleaning or polishing of the conductive pattern
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/01—Manufacture or treatment
- H10W70/04—Manufacture or treatment of leadframes
- H10W70/045—Cleaning
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/22—Electronic devices, e.g. PCBs or semiconductors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0779—Treatments involving liquids, e.g. plating, rinsing characterised by the specific liquids involved
- H05K2203/0783—Using solvent, e.g. for cleaning; Regulating solvent content of pastes or coatings for adjusting the viscosity
Definitions
- the present invention relates to a cleaning agent, a cleaning method, and a cleaning apparatus in place of a CFC-based solvent, a chlorine-based solvent, and the like.
- HICs, modules, mounting boards, and I metal strips such as transistor lead frames and hoop materials and bearings, precision micro components, etc.
- a resist agent such as resist agent, flux, solder
- Various contaminants such as water-based or solvent-based machine oils such as pastes, cutting oils, quenching oils, rolling oils, press oils, punching oils, drilling oils, assembling oils, drawing oils, dusts, dust, etc. Adheres.
- printed circuit boards are roughly divided into the process of manufacturing the board itself (bare board) and the process of mounting Ic and electronic components on this board.
- Most of the acids and alkalis are contaminated during the mounting process, such as solder and flux when soldering the mounted components.
- Contaminant which must be particularly removed is CuC 1 2 or (RC00) organic acid salts such as 2 Cu is the reaction product of an acid ⁇ with the active agent and this and the base material in the flux. Since these are polar substances, if they remain, they will absorb moisture, cause leakage, migration, decrease the absolute resistance value, and cause corrosion of pins and wiring.
- contamination of ionic substances is a serious problem in the semiconductor manufacturing process, and is called "sodium panic". In metal-worked parts, these residues cause problems such as corrosion and discoloration. Therefore, these contaminants must be removed before the next process or at the time of production.
- chlorofluorocarbon-based solvent typified by chlorofluorocarbon 113
- an organic solvent such as trichloroethane, trichloroethylene, tetrachloroethylene, and tetrachloride fb ⁇
- chlorinated organic solvents such as trichlorethylene and tetrachlorethylene are also being strictly regulated due to environmental problems such as soil and groundwater pollution.
- the main alternative cleaning methods currently proposed for cleaning printed S boards are a water-based cleaning method in which water-soluble flux is removed with pure water, and a water-based cleaning method after removing the flux with a solvent and then rinsing with water.
- a water-based cleaning method in which water-soluble flux is removed with pure water
- a water-based cleaning method after removing the flux with a solvent and then rinsing with water.
- a solvent having a low surface tension is suitable as a cleaning agent.
- a solvent having a low surface tension generally contains a nonpolar solvent.
- the above-mentioned working oils are used under non-severe conditions, so they generally contain extremely large amounts of polar substances such as oily ⁇ and extreme pressure ⁇ .
- a non-polar solution, a low ifi tension solution has a high S permeability to ⁇ »for dense parts Has poor dissolving power and is not suitable for alternative washing. This has made it difficult to develop detergents that can be used in place of CFC-based solvents and chlorine-based solvents.
- the aqueous cleaning method and the semi-aqueous cleaning method proposed in the washing of printed substrates and the like are expected to have a high ability to remove polar substances (though they are expected to be used for glass epoxy substrates and paper phenol substrates).
- electric resistance such as surface insulation resistance decreases due to permeation of L with water adsorption.
- these cleaning parts that require precision cleaning there is a problem that the appearance and characteristics after drying such as drying property, ⁇ , discoloration, and drying spots are reduced by iS.
- the solvent washing power by non-polar substances such as hydrocarbons and the like is desirable.
- non-polar substances such as hydrocarbons cannot be expected to wash ionic substances, polar substances or strong dirt.
- the properties required for cleaning and the properties required for drying include elements that are contrary to ffl. For this reason, it has become extremely difficult to substitute power, electronic and precision parts, which have been attempted to switch the cleaning of many industrial products to water, alkaline, and solvent cleaning.
- the present invention has been made in order to cope with such a problem, and is intended for cleaning an object to be cleaned having a portion closely adhered to each other with a thickness of an oil film, such as a metal ribbon, a bearing, and a fine precision component.
- detergents that exhibit cleaning performance comparable to those of CFC-based chlorinated solvents and that do not cause environmental destruction or environmental pollution
- An object of the present invention is to provide a washing method and a washing apparatus.
- the present invention provides a method for cleaning electronic components such as a printed S board and a mounted component, which is equivalent to a cleaning method using an orifice-based solvent or a salt-violet solvent and uses this cleaning method. It is an object of the present invention to provide a cleaning device. Disclosure of the invention
- the first detergent of the present invention is a detergent for washing an object to be washed having at least a gap portion, and has a solubility with at least one component that forms a stain, A washing component having a difference of 3 or less. Further, it is characterized by containing a washing component whose difference in solubility parameter with at least one component that renders dirt is 3 or less and whose contact force is within 15 °. Also make up the dirt Among these components, a washing component having a difference in solubility parameter with a contaminant component of 5% or more of not more than 3 and a force and a contact angle of not more than 3 is contained.
- ⁇ 1 is characterized in that the detergent contains at least 1 component selected from polyorganosiloxanes and organic compounds.
- the object of washing of the detergent of the present invention is treated with a working oil containing at least one component of oil, an oily agent and an extreme pressure agent. It is characterized by a distance of 0.001-2000 ⁇ m.
- a first cleaning method of the present invention is characterized in that an object to be cleaned having at least a part of a gap portion is washed by the above-mentioned washing. Further, the method is characterized by comprising a step of washing the object to be washed and a step of drying the object to be washed. Furthermore, a perfluorinated compound is used as the steaming agent.
- the first cleaning device of the present invention is a cleaning device for cleaning an object to be cleaned having at least a gap portion of a working oil composition using the above-described detergent.
- Cleaning means consisting of a single tank or multiple tanks, drying means, distillation means for distilling the detergent overflowed from the washing tank, and a liquid for regenerating a steam detergent which has been steam-washed with Z or the object to be washed. It is characterized by having a separating device.
- the distillation means has a function of removing the distillate obtained by distillation, and the washing efficiency has a washing liquid E0 sensor for keeping a predetermined liquid level. When the liquid level falls below the predetermined liquid level, the cleaning liquid is supplied to the storage tank. It is characterized in that one washing liquid is performed by being overflowed. Further, a device for detecting components other than washing is provided in the washing tank.
- the washing method of ⁇ 2 of the present invention is a washing method of a child part such as a printed board mounting part, in which a polarity detergent having a solubility parameter of 9 or more or an induction rate of 4 or more is used.
- the washing of ⁇ 1 of the Japanese ash is a factor that affects the washing ability of the washing. It was made by showing that he relies heavily on tension. In other words, considering the composition of the machine oil, it is necessary to optimize the washing composition and use this detergent As a result, it becomes possible to combine the permeability of the closely adhered parts into the gap and the dissolving power that enables each composition of the machine oil to be washed.
- the bridges have made it possible to wash parts that have been in close contact with oil, which has been difficult to wash with conventional non-fluorocarbon and chlorine solvents.
- the object to be washed according to the present invention is made of a material having at least a portion that comes into contact with an oil film of a working oil, and is not particularly limited, and is made of a metal, a metal half, a ceramic, a plastic material, or the like.
- Metals and metallurgy include iron, aluminum, silicon, copper, stainless steel, etc.
- ceramics include silicon nitride, silicon carbide, aluminum oxide, glass, porcelain, etc.
- plastics include polyamide. Examples thereof include polyimide, polyimide, polyolefin, polyester, and acryl resin, and may be a composite material thereof.
- FIGS. 1A and 1B there is a transistor lead frame shown in FIGS. 1A and 1B.
- FIG. 1A is a plan view
- FIG. 1B is a sectional view taken along line AA of FIG. 1A.
- the thin metal strips 1 are in contact with each other via an oil film 2 of a working oil.
- the thickness of the oil slick is as thin as 0.001 m.
- the washing machine of Masaaki Rikimoto it is possible to infiltrate [3 ⁇ 4]! 3 ⁇ 4 '(
- the thickness of the oil film exceeds 2,000 ma, the oil does not easily become dense and can be washed by other washing and washing methods.
- the target object has a part that contacts through the oil film, but the washing object that is tightly sealed at an oil film distance of O.Oi // tn to 100 ⁇ is particularly preferable. and has a part to part, for example, means that includes the case in contact even at Ichiten part as a bearing.
- the respective metal strip 1 mutual contact 13 ⁇ 4 ⁇ is IOOirnn 2 or more lead frames applicable. preferably the 100 Jour 2 or more, Derutashitashitapaiiotapaiiota 2 or more, 2500Rnni 2 or more, 4 E ⁇ 2 above its Each applicable, the most preferable washing ⁇ object is contacted ⁇ is 7Y00paipaiiotaiota 2 or more.
- This machine oil includes cutting oil, quenching oil, rolling oil, press oil, punching oil, drawing oil, assembly oil, An aqueous or solvent-based oil such as drawing oil, which contains at least one component of base oil, oil-based agent and extreme pressure agent.
- Oils include synthetic oils, mineral oils and natural fats and oils.
- Synthetic oils include polyol esters, diesters, polyolefins, dialkylbenzenes, polyethylene glycols, alkyl diphenyl ethers, alkyl naphthalenes, polyphenyl ethers, silicone oils, isoparaffins, phosphate esters, silicates, fluorine compounds, etc. be able to.
- Mineral oils include solvent refined or hydrorefined oils and low temperature pour point-S oils with improved low temperature fluidity. Fats and oils include fatty acid glycerides such as animal and vegetable fats and oils and natural fats and oils.
- oily bases examples include higher fatty acids such as oleic acid, stearic acid, isostearic acid, palmitic acid, arachinic acid, and cerotic acid, and long alcohols such as oleyl alcohol and stearyl alcohol.
- Extreme pressures include sulfur compounds such as diphenyl disulfide, didodecyl disulfide, dibenzyl disulfide, and sulfur; phosphorus compounds such as trilauryl phosphate, trilauryl phosphate, lauryl phosphate, and dilauryl phosphite; Monochloro mouth benzene, pentachlorodiphenyl, chlorinated paraffin, hexachloroethane, methyl trichlorostearate, chlorine compounds such as pentachlorochlorostearate, lead dithiophosphate, molybdenum dithiophosphate, molybdenum xanthate And organometallic compounds such as tribenzyl borate.
- sulfur compounds such as diphenyl disulfide, didodecyl disulfide, dibenzyl disulfide, and sulfur
- phosphorus compounds such as trilauryl phosphate, trilauryl phosphate, lauryl phosphate,
- emulsifiers such as anti-emulsifiers, anti-emulsifiers, anti-abrasives such as phosphoric acid esters and gold dithiophosphates, and anti-wear agents are used depending on the river.
- Various additives such as chemicals, water and acid scavengers, ⁇ ⁇ dispersants, defoamers, metal deactivators, pour point depressants, viscosity index improvers ⁇ , antiseptic agents, and inhibitors can be used. .
- the solubility with the additive, the washing component having a difference of less than 3 or less, or a contact angle of 15 or less.
- a water containing at least a washing component having a power and solubility parameter of 3 or less it is preferable to use a water containing at least a washing component having a power and solubility parameter of 3 or less.
- the solubility parameter according to the present invention (hereinafter referred to as (5)) is defined by the following equation (1). Is done.
- [Delta] is the molecular coagulation dyed Energy (cal / rool>, V is the molecular volume (m l / mo l) representing each. That, [delta] is equivalent to the square root of the cohesive energy density.
- the total volume of the Vrr ⁇ compound (Kml)
- the volume fraction is the volume fraction
- the subscripts 1 and 2 represent component 1 and component 2, respectively.
- the working oil component can be sufficiently dissolved and removed.
- This ⁇ can be determined by any of the methods such as the latent heat of vaporization method and the molecular attraction constant method.
- the measurement method of ⁇ 5 is not particularly limited, as long as the ⁇ value obtained by any one of the methods satisfies the conditions of the present invention.
- ⁇ £ determined by the latent heat method, and the boiling point cannot be determined, or it is difficult to measure, and the substance has a known chemical drawing formula.
- Tb is the boiling point (K)
- R is the air rest constant (i.986cal / mol)
- T is the absolute ⁇
- liquid paraffin is a base oil
- M 142.29
- T b 200 ° C (-473)
- d 0.896 (g / ml)
- the molecular attraction constant method is a method of obtaining ⁇ from the characteristic of each functional group (atom or atomic group) that describes a molecule of a chemical compound, i.e., the total of the molecular attraction (G) and the molecular volume. It is useful when calculating the value of (t, resin, etc.) which is difficult to evaporate unlike varieties.
- ⁇ is obtained by equation (6).
- G corresponds to ⁇ (molecular volume cohesion energy) between molecular coagulation energy and molecular volume, and the G value is published by Sma ⁇ and others.
- ⁇ 5 m of the mixture is generally obtained by the formula (7) as a weighted average value for the mole fraction of 5 for each component.
- the subscript i represents the i component.
- the contact angle which characterizes the cleaning agent of the present invention, is a characteristic that can be an index of the osmotic force of a portion of the oil film that is in close contact with each other, and is determined by the following method.
- a machine oil component is spread on frosted glass, a washing component whose contact angle is to be measured is reduced by 21 2, and the contact is measured with a contact angle meter (for example, manufactured by Kyowa Interface Science Co., Ltd.
- the droplets of the cleaning component wet and spread immediately after dropping. The measurement is completed within 2 seconds after dropping, since some of the drops may occur.
- the measurement of 5 and the contact angle is performed at 25 points.
- the difference between the machine oil component and the cleaning component is less than or equal to (the difference of 5 is not more than 3 and the above-mentioned contact angle is within ⁇ .
- the cleaning agent can easily penetrate into the parts where the metal thin strips such as hoop materials are in close contact with each other due to the thickness of the oil film, and the machine oil component can be sufficiently dissolved and removed.
- the contact angle is within 10 °, more preferably 5. It is as follows.
- the detergent of the present invention preferably satisfies the above-mentioned conditions of 5 and contact angle for each of the detergent components.
- the cleaning agent of the present invention contains at least one component selected from polyorganosynxane and organic compounds.
- the polyorganosiloxane is a polyorganosiloxane represented by the following formula.
- R is the same or different, substituted or unsubstituted iffi organic group, 1 is an integer of 0-), a linear polydiorganosiloxane represented by the formula:
- R is the same or ffl different substituted or unsubstituted monovalent organic, m is 3-7 Indicates an integer
- R in the above formulas (1) and (11) is a substituted or unsubstituted lffi organic group-such as an alkyl group such as a methyl group, an ethyl group, a propyl S and a butyl group, and a phenyl group.
- Monovalent unsubstituted hydrocarbons such as purple S, trifluoromethyl S, and monovalent substituted hydrocarbon groups such as 3.3,3-trifluoropropyl group, and the terminal R in the above formula (1). Examples further include amino S, amide S-, an acrylate group, a mercaptan group and the like, and a methyl group is most preferable in view of stability of the system and maintenance of compatibility.
- octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane having a cyclic structure, and mixtures thereof, and octamethyl methyl compounds having a direct structure can be used from the viewpoints of permeability and washing ability. Usability of siloxane, decamethyltetrasiloxane, etc. ⁇ Especially preferred.
- a machine oil having a detergent component having a strong alkalinity those having a non-linear structure represented by the above formula (1) are preferred from the viewpoint of the stability of polysiloxane.
- the organic carbonaceous compounds related to the detergent component of the present invention include normal and aliphatic hydrocarbon compounds such as isoparaffins and olefins, alicyclic hydrocarbon compounds such as cycloparaffins and cycloolefins, and aromatic hydrocarbon compounds. Hydrocarbon purple compounds, alcohols, ketones, esters, fatty acids, fluorinated hydrocarbons, etc.
- normal decane isododecane
- gasoline rubber volatile oil
- mineral spirits mineral spirits
- kerosene naphthenic hydrocarbons (boiling point LGO-200 ° C)
- turpentine limonene
- benzene toluene
- xylene methanol
- ethanol propanol
- Normal butanol normal hexanol, 2-ethylhexanol, normal octanol, cyclohexanol, acetone, methylethyl ketone, methyl isobutyl ketone, diisobutyl ketone, cyclohexanone, methyl acetate, ethyl acetate
- Examples include butyl acetate, diethylene glycol monobutyl ether, ethyl citrate, and octadecafluoroquinone.
- the detergent composition of the present invention and the compounding ratio thereof can be determined
- the detergent component can be determined for any one of the oil film components. In particular, it is particularly important to target one of base oil, oily oil and extreme pressure agent.
- polyorganosiloxanes it is preferable to blend low molecular weight polyorganosiloxanes, hydrogenated compounds and aromatic hydrocarbon compounds as detergent components for the base oil of the machine oil. : Polyorganosiloxane is preferred.
- a detergent component for the oily agent it is preferable to blend an aliphatic hydrocarbon compound, an aromatic hydrocarbon compound and a low-molecular-weight polyorganosiloxane, and in particular, a fatty acid hydrochloride compound.
- alcohols, ketones, esters, and fatty acids are preferably provided, and aliphatic alcohols having 5 to 12 carbon atoms are particularly preferable.
- the detergent containing the low-molecular-weight polyorganosiloxane represented by the above formulas (1) and (11) has a strong penetrating power to the gold-metal interface and its cleaning power. A cleaning effect comparable to that of the conventionally used CFCs can be obtained.
- Tables 1, 2 and 3 Examples of the above-mentioned detergent components are shown in Tables 1, 2 and 3, respectively.
- Table 1 shows mineral oil values as base oils; 8),
- Table 2 shows oleic acid as oily (( ⁇ 5 values; 9), and
- Table 3 shows sulfurized oils and fats as polar agents ( ⁇ 5 values; 12). It is an example of the washing
- the detergent distribution ratio can be determined in consideration of the composition of the oil film component. For example, if the composition ratio of oil oil: S oil is 60 SS%, oily agent is 30% by weight, and extreme pressure agent is 10, the detergent components corresponding to the oil film component are 60% by weight, 30% by weight, respectively. It may be 10% by weight. In general, when taking into account the composition of the machine oil corresponding to recent micromachining, the detergent component for extreme pressure agents should be 10 to 20% by weight, and the rest should be the detergent components for base oil and Shandong. preferable. At this time, the ratio of the detergent component to the base oil and the oil agent is preferably set to 10/90 to 90 / ⁇ 0 as the detergent for the S oil and the detergent for the oil agent.
- Low molecular weight S polyorganosiloxane and hydrocarbon 80 to 90% by weight
- Alcohol amount, ketones, esters or polyesters 10-20% by weight.
- the object to be washed closely adhered by an oil film is immersed in the washing machine in a state of being kept in a dense state, and is subjected to ultrasonic cleaning, rocking, mechanical stirring, and heating. After cleaning by warming, brushing, etc., swelling by drying etc. is performed.
- the drying process it is preferable to perform drying by steam cleaning.
- Fu by steam cleaning, it is possible to improve the finish of Fu, and it is suitable for precision cleaning and the like.
- steam washing 1
- the steam washing agent is excellent in compatibility with the liquid brought in from the previous process. Specifically, the difference of ⁇ 5 is 3 or less, and the evaporation of the steam washing agent. Latent heat and the difference in latent heat of vaporization between the vapor detergent and the liquid brought in from the previous process are small.Specifically, the difference in latent heat of vaporization is 3 times or less.
- perfluoro compounds low-molecular-weight polyorganosiloxanes, and hydrogen halides are preferable because they are possible.
- a perfluorinated compound which is less flammable and does not cause ozone II destruction.
- n is an integer from 4 to 12
- perfluorinated compound represented by the following formula.
- These perfluorinated products have a ⁇ -value force of ⁇ 5 to 6f, a latent heat of evaporation of about 20 cal / g, and a boiling point of
- a typical industrial production method of the perfluoro compound used in the present invention is the substitution of H for F by the hydrofluorination method of the relevant hydrocarbon. Therefore, depending on the reaction conditions, the S-to-F conversion is not complete, and the H-fluoro compounds (HFCs) in which H and F are tied to each carbon remain in the perfluorinated compounds (PFCs).
- HFCs H-fluoro compounds
- PFCs perfluorinated compounds
- a hydrofluoro compound (HFCs) can be used as a steam cleaner.
- the perfluorinated compound vapor cleaner is not required to be used alone, but is used, for example, as a mixture with isopropyl alcohol or as a composition containing another solvent such as polyorganosiloxane or organic carbon compound. It is also possible.
- a fluorocarbon solvent or a chlorine solvent is not necessarily removed. Of course, it is better not to use this from the viewpoint of environmental pollution, but it is ffl in the middle of its total abolition.
- the ⁇ 5 value and latent heat of vaporization of the mixture must satisfy the above conditions (1) and (2).
- Each of the several cruises is the same as 1 described above. It is also effective to interpose an organic solvent having an intermediate 5-value or latent heat of vaporization.
- the first washing apparatus of the present invention comprises a washing means comprising a single or a plurality of washing means, a drying means, a distillation means for distilling the washing overflowed in the washing tank, and / or a steam washing in which the object to be washed is steamed. It is equipped with a liquid separation device for raw separation of ⁇ . Distillation equipment and liquid separation equipment; S can be operated during washing or when stopped. Distillation equipment and liquid separation chisas wash ⁇ ⁇ and steam wash ⁇ ⁇ with 95 ⁇ % or more ⁇ Separation is preferred.
- the liquid separator a an apparatus or an apparatus utilizing a difference in specific a is shown, but when a perfluoro compound is used as a steam detergent, an apparatus utilizing a specific gravity difference is preferable.
- the washing tank can be provided with a washing auxiliary device such as ultrasonic wave, rocking, mechanical stirring, cleaning agent heating, and brushing, if necessary.
- the cleaning tank can be provided with a device for detecting contaminants other than the cleaning agent, for example, contaminants such as rolling oil and processing oil and the concentration thereof.
- the detector is not particularly limited, but can detect trace amounts of contaminants! : A device using an infrared spectrometer or an ultraviolet spectrometer 3 ⁇ which can perform the measurement is preferable. Further, it is preferable to install a dust removal filter in front of the detection device in order to increase the sensitivity of the detection device.
- the washing agent after washing the washing substance has a force to overflow from the upper part of the washing tank.
- This overflow liquid is led to a distillation apparatus, where it is regenerated and separated by distillation.
- the regenerated and separated cleaning agent is stored in the storage, and is then re-supplied to the washing tank by the cleaning agent supply means linked with the liquid level sensor installed in the cleaning unit.
- the steam washer ⁇ is guided from the lower part of the steam washer to a liquid separation device utilizing the difference in specific IE, where it is separated from other components.
- the contact angle between the component of the machine oil and the cleaning agent of the present invention n / j ⁇ 1 cleaning agent is 15. If it is within the range, the detergent will easily penetrate into gaps such as lead frames that are dense with an oil film. In addition, if the force of ⁇ 5 is less than 3, the mutual solubility is excellent, so that the oil stains and the like existing in the gap can be easily dissolved and washed and removed.
- the first cleaning method of the present invention by having a washing step and a steam washing and drying step, washing and drying of the dense component can be facilitated.
- a polyfluorosiloxane compound that is compatible with the polyorganosiloxane—organic carbon compound—for the steam cleaner the washing, drying, and raising can be improved.
- the first cleaning device of the present invention includes a distillation device and / or a liquid separation device, it can be used while separating and regenerating the cleaning agent and the vapor cleaning agent. This cleaning apparatus can be used for the second cleaning method described below.
- the electronic component or the like is washed with a polar solvent having a solubility parameter ( ⁇ 5) of 9 or more or a dielectric constant of 4 or more, and then the solubility parameter (is less than 9 and the dielectric constant is 4 or less).
- a solubility parameter ⁇ 5 of 9 or more or a dielectric constant of 4 or more
- washing refers to a force or removal that minimizes the concentration of dirt attached to an object to be washed.
- Rinsing refers to minimizing or removing the concentration of detergent adhering to an object to be cleaned.
- drying refers to evaporating or removing the cleaning agent or rinsing agent from the object to be cleaned, and includes methods such as natural drying, vacuum drying, hot air drying, steam drying, and replacement with a solvent having a higher vapor pressure. There is.
- the polar detergent in the present invention is determined by a solubility parameter, a dielectric constant, a dipole moment, a molecular polarizability, a dissociation constant, a molecular refractive index, an acid-base interaction, and the like, which are factors related to polarity.
- a solubility parameter e.g. 9 or more or the dielectric constant is 4 or more, it can be used as a polar detergent.
- the dipole moment is preferably in the range of 1 to 5D.
- the range of 1 to 1.5 D is a boundary area.
- Preferred polar detergents have a ⁇ 5 value of 9 to; or a dielectric constant of 4 to 45.
- the polar detergent used for removing the activator component of the flux and extreme pressure additives such as processing oil and cutting oil (the value may be in the range of 9 to L4, more preferably 10 to 13). If the ⁇ 5 value is 14 or less, the compatibility with the rinsing detergent having a 5 value of less than 9 is improved, so that the effect of removing the detergent by the rinsing step can be sufficiently imparted.
- 9 or more polar detergents ionic substances in flux, processing oil and cutting oil can be removed well.
- Examples of polar detergents having a ⁇ value in the range of 9 to 14 or a dielectric constant of 4 to 45 include alcohols, glycols, phenols, ketones, fatty acids and fatty acids. Anhydrides, esters, amines, amines, quaternary ammonium salts, nitriles, morpholines, sulfoxides, sultones, phosphoric acids and their derivatives, N-methyl-2-pyrrolidone Can be mentioned.
- alcohols such as methanol, ethanol, propanol, normal hexanol, 3,5,5-trimethyl hexanol, 2-ethylhexanol, normal oxanol, normal butyl alcohol, cyclohexanol, and benzyl alcohol
- esters such as methyl acetate, ethyl acetate, butyl oxalate, ethyl lactate, methyl lactate, getyl oxalate and derivatives thereof
- amines such as ethylamine, redimethylnitroamine and derivatives thereof Dimethylacetamide, ⁇ , ⁇ -dimethylformamide, ⁇ , ⁇ -ethylformamide, -ethylethylacetamide and derivatives thereof, and tetramethylammonium as quaternary ammonium salt ⁇
- the derivatives are isobutyronitrile, propionitrile, aceton
- Examples of the cleaning agent having a 5-value of less than 9 and an attraction ratio of less than 4 in the present invention include polyorganosiloxanes, hydrocarbons, perfluorocarbons, hydrofluorocarbons, ethers, and acetal.
- polyorganosiloxanes include: ⁇ molecular polyorganosiloxanes such as octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane, and derivatives thereof, and hydrocarbons, and i: ⁇ ⁇ ⁇ solvent 1 116, 162 0, 20 28, 28 35 (out Light Petrochemical Co., Ltd., trade name) Isoparafi emissions such as, Shiweruzoru D 40, D 70
- low-molecular-weight S polyorganosiloxane is preferably a polyorganonoxanka represented by the aforementioned general formula (1) and the general formula (11), wherein R in the formulas (1) and ( ⁇ ) is substituted or An unsubstituted monovalent organic group, for example, an i-valent unsubstituted hydrocarbon group such as an alkyl 25-phenyl group such as methyl group, ethyl group, propyl-, butyl S, etc., trifluoromethyl group, 3, 3,
- Examples include monovalent hydride S such as 3-trifluoropropyl group, and the terminal R in the above formula (1) further includes an amino group, an amide group, an acrylate group, a mercaptan group, and the like.
- methyl S is most preferable from the viewpoint of stability of the system and maintenance of volatility.
- Table 4 (1) shows an example of a polar detergent having the above ⁇ iiS of 9 to U or a dielectric constant of 4 to 45
- Table 4 (2) shows an example of a detergent having a 5 ⁇ of less than 9 and an induction of less than 4.
- the dipole moment values in this table are reference values and are also quoted from various references. Since the dipole moment value changes depending on the measurement method such as the temperature change method, the refractive index method, and the solution method, the S value and the dielectric constant cannot be determined from the dipole moment values in the table.
- ⁇ 5 boats can use a mixture of a polar cleaner with a dielectric constant in the range of 9 to 14 or a dielectric constant of 4 to 45 and a cleaner with a ⁇ 5 value of less than 9 and a dielectric constant of less than 4.
- cleaning is performed with a cleaning agent obtained by mixing a polar cleaning agent with a low-molecular-weight polyorganosiloxane and / or hydrogen fluoride, and then a cleaning agent having a 5-value of 9 or less and an inducing ratio of 4 or less is performed.
- Rinsing and / or drying allows for good cleaning.
- the hydrocarbons are preferably linear and / or cyclic aliphatic hydrocarbons from the viewpoint of improving the drying property.
- the mixing ratio of the polar detergent may be any necessary amount that does not impair the detergency and drying. It is preferably 10 to 50! ES90 for the total amount of washing, and 15 to 30 weight. % Is more preferable.
- the amount is 10 3% or more, the flux becomes more soluble in polar substances contained in the processing oil, and the ionic substance is likely to remain on the mounting board when ionic substances remain. This prevents leaks between wiring and leads and prevents the occurrence of leaks, ensuring the reliability of the board.
- the drying power is ⁇ good, and it is possible to impart a precision-improving property to the dried component.
- the proportion of the polar detergent exceeds 50 swift%, good drying properties can be imparted by rinsing only with a washing agent having a ⁇ value of less than 9.
- the drying step in the washing method 2 of the present invention may be a method using steam drying, hot-air drying or natural drying, and is not particularly limited. It is. In particular, when precision washing is required, it is preferable to perform steam drying, which has excellent finish properties.
- the steam detergent used for steam drying is preferably a detergent having a property of 5 fiS of less than 9 and a dielectric constant of less than 4. It is preferable to use at least one washing agent selected from the group consisting of carbon and hexamethyldisiloxane (preferably for close washing).
- perfluorocarbon can be a compound represented by the general formula (1II) or (1V)
- hydrofluorocarbon can be a compound represented by the general formula (V). it can.
- drying can be performed by replacing with a cleaning agent having a relatively higher vapor pressure than a polar cleaning agent. This method is effective for drying at low temperature and in a short time.
- the rinsing step and the drying step after the cleaning step with the polar detergent may be performed continuously, and the rinsing step and the drying step may be omitted.
- the cleaning method of ⁇ 2 of the present invention involves first cleaning with a polar cleaning agent, then rinsing with a less polar or non-polar cleaning agent, and drying, so that electronic components and the like are cleaned. In precision cleaning, both washability and dryness can be achieved.
- the cleaning device As the cleaning device, the device shown in FIG. 2 or FIG. 3 can be used.
- the number of cleaning tanks and rinsing tanks can be arbitrarily set depending on the types of dirt and ⁇ adhered to parts and are not limited. .
- Rinsing means and drying means can be arranged as required.
- the steam drying used in the washing, rinsing, and drying means is preferably distilled and utilized.
- a cleaning cascade is used for a machine that uses a method of mixing a polar detergent with a low-molecular-weight polyorganosiloxane and a Z- or hydrocarbon-based detergent in the range of ffl in the range of 9 to 14 ffl and then drying after cleaning. (Over-flow) method, so that the liquid contaminated by distillation 3 ⁇ 4ii can be regenerated and returned to the final cleaning II, so that the liquid management ability can be controlled compared to the case where the cleaning liquid and the rinsing liquid are separately managed.
- the liquid life is less than that, leading to a significant reduction in running costs.
- the detergent component power When regenerating by distillation, the detergent component power; 'The boiling point of each component is preferably as close as possible to the base of the mixture, and the boiling point of the detergent component is in the range of 150 to 200 ° C from the stability of the composition ratio It is preferable that Brief description of the figure
- FIGS. 1A and 1B show a transistor for a transistor according to an embodiment of the present invention.
- FIG. 2 is a view showing a lead frame
- FIG. 2 is a view showing a washing apparatus comprising a plurality of washing tanks of one embodiment of the present invention
- FIG. 3 is one washing tank of one embodiment of the present invention.
- FIG. 3 is a view showing a washing apparatus made of the present invention.
- Examples 1 to 10 and Examples 1 to 4 and Examples 1 to 4 relate to the first cleaning agent, the cleaning method and the washing apparatus, respectively.
- Comparative Example 10 relates to the second cleaning method and the cleaning apparatus.
- a detergent D-1 was obtained by mixing 60% by weight of octamethylcyclotetrasiloxane, 30% by weight of isododecane, 5ffiS% of 2-ethylhexanol, and 5% by weight of normalbutanol. Note that 5 fit and contact angle are the values shown in Tables 1 to 3, respectively.
- Octamethylcyclotetrasiloxane 40% by weight, naphthenic hydrocarbons (boiling point 160-200 ° C) 40 iEm%.
- Ea % was stirred in a mixing table to obtain a detergent D "2.
- the ⁇ 5 value and the contact angle are the values shown in Tables 1 to 3, respectively.
- a working oil P-1 consisting of liquid paraffin 85 isostearic acid 8 ⁇ ⁇ ⁇ 3% and chlorinated paraffin 7 was prepared, and using this working oil P-1, a 42 alloy alloy lead frame (20 mm X 150 min X 0.25 ) Was punched out. 800 pieces of lead frames were set on a blanket while being kept in close contact with the machine oil P-1, respectively, and the cleaning agent D-1 obtained in Example 1 was used. Washing was performed with g. The oil slick distance in the dense state before washing was approximately. Washing 3 ⁇ 41 Washing ⁇ ⁇ Wash the D- 1 ⁇
- a value of 0/800 indicates that it has been completely washed.
- the lead frame after washing was sampled two optionally, after extraction of oil remaining by the four chlorine of 300 ml, and constant with LiORl BA oil content meter OCMA-220 7 d 0
- a work basin P-2 made of liquid paraffin 75®M% s isostearic acid 15 m &% chlorinated paraffin 10 was prepared, and the same lead frame as in Example 3 was punched out. 800 lead frames were set in a basket while being kept in close contact with the machine oil P-2, and washed using the detergent obtained in Example 2! ⁇ 2.
- the cleaning tank was filled with the cleaning agents D to 2, the lead frame set in the basket was crushed, and ultrasonic cleaning was performed at 35 ° C. for 3 min. After that, hot air drying was performed at 60 ° C and ⁇ . ⁇ .
- a working oil P-1 consisting of 85% by weight of liquid paraffin, 8% by weight of isostearic acid, and chlorinated paraffin 7 was prepared, and this alloy was used to make a 42-alloy Transis Yuichikawa lead frame (20mm x 1500mm). X 0.25 mm). 800 lead frames were densely filled with machine oil P-i, respectively. ⁇ They were set in a basket while being kept in J, and i, 1.1-trichloroethane was washed by a river. Wash the wash if
- a working oil P-2 consisting of 75% by weight of paraffin, 15% by weight of isostearic acid and 10% by weight of chlorinated paraffin was prepared, and the same lead frame as in Example 3 was punched out.
- 800 leadframes were set in a basket with the machine oil P-2 in close contact with each other, and sodium metasilicate quintuple; sodium stearate 5 wt%, polyoxyethylene nonylphenyl ether 15 lightning
- the cleaning was performed using an aqueous solution containing 10% by weight of a cleaning agent consisting of 15% by weight of water and 15% by weight of water, and then using a pure frame. Drying was performed with hot air drying of 6 (TC, lOrain.).
- Example 5 shows the results. Table 5 shows that the present invention excels in the peeling state and the surface state, and the residual oil content was small. Table 5 Machine oil cleaning agent Exfoliated surface state. Residual oil Example 3 P-1 D-1 0/800 0/800 0.lppm Example 4 P-2 D-2 0/800 0/800 0.2 ⁇ Comparative Example 1 P-1 H Taro ⁇ ⁇ 0/800 0/800 0.2ppn Comparative Example 2 P-2 Aqueous cleaning agent 796/800 796/800 38.7 ppm
- P-6 was prepared from the machine oil P-3.
- Table 6 shows the composition.
- Detergents D-3 to D-6 corresponding to this machine oil P-3 force, etc. P-6 were obtained in the same manner as in Example 1.
- Table 7 shows the composition.
- Oxygen-free copper IC lead frames (25mra X 200mni X 0.5mtn) were punched using the machine oils P-3 to P-6, respectively.
- Cleaning was performed by a cleaning device.
- the oil film distance in the close contact state before washing was about 10 ill. Detergency was evaluated in the same manner as in Example 3.
- Table 8 shows the results. In Examples 5 and 6, drying by steam cleaning was performed under the same conditions as the bumps 3, and in Examples 7 and 8, warm air drying was performed under the same conditions as the Examples 4.
- FIG. 2 shows the configuration of the cleaning device with a diameter of 9 mm.
- Figure 2 shows an example of a cleaning device consisting of a plurality of cleaning tanks.
- the cleaning equipment shown in the figure is roughly divided into a washing process, a cleaning (rinsing) process B, a detergent regenerating mechanism, a steam cleaning / drying mechanism SD, and a steam detergent regenerating mechanism E. It is configured.
- the washing process A and the cleaning process B have overflow separation function and liquid level adjustment sensor.
- arrows indicate the flow of the liquid.
- the washing tank in the washing step A and the cleaning step B may be selected from single tank / multi-tank connection ffi depending on the washing time and cleaning quality, and the number of tanks in the multi-tank connection tank is also the same. is there.
- a 3 ⁇ 'multi-tank connecting tank is used, and each tank is connected by a drain pipe (not shown) and an overflow pipe 8.
- ultrasonic waves, rocking, mechanical heating, detergent heating, brushing, and the like are used in combination in each tank as needed, and thus cleaning performance is further improved.
- nine ultrasonic generators are provided.
- a dust removal filter 10 and a dirt detection device 11 are installed in the final tank in the purification process.
- Various types of dust removal filters are selected depending on the material to be washed and the contents of the working oil.For example, a microporous ceramic filter with a pore size of about 1 to 20 m, a glass filter, and a polymer A system filter, or a combination of these filters, is preferably used.
- the dirt detection device 11 is also a device to which an external spectrometer or an ultraviolet spectrometer is applied.
- the washing / regenerating mechanism C performs separation by utilizing the difference in the boiling points of the components in the cleaning agent sent from the overflow pipe 8 and the oil-based dirt.
- the regenerated cleaning agent is temporarily stored in the reserve tank 12 and then supplied to the cleaning tank in the purification step B.
- the steam detergent regenerating mechanism E performs separation by utilizing the difference between each component in the detergent and the specificity of the steam detergent.
- the separated detergent is supplied to the tank (12), and the steam detergent is supplied to the steam cleaner (3).
- FIG. 3 shows the composition of the cleaning device S of the tenth embodiment.
- FIG. 3 shows the structure of a cleaning apparatus composed of one cleaning tank.
- the washing and concealment shown in the figure is roughly composed of a washing step A, a cleaning agent regenerating mechanism C, a steam washing and drying step D, and a steam washing and drawing E.
- the cleaning process ⁇ has an overflow separation function and a liquid level adjustment sensor.
- the same ultrasonic apparatus, dust removal filter and dirt detector as in Example 9 are installed in the cleaning tank.
- the cleaning agent regenerator ⁇ C, the steam cleaning / drying process D and the steam cleaning agent regenerating mechanism E are the same as in the ninth embodiment, and perform the same functions.
- Example 4 by using the tool oil P-2 using 42 Aroi manufactured lead frame (50 Jour X 15 Omni X 0.25 ⁇ ) contact surface 1 ⁇ 2 100 Jour 2 or more Gi ⁇ less than 2, 800 mm 2 or more 2500rani less than 2, 2500 mm 2 or more 4000 Jour less than 2, 4000 mm 2 or more 7000 negation less than 2 were punched so as to 7000 mm 2 or more.
- Each lead frame was cleaned with a cleaning device of I0 using a cleaning agent D-1. In the cleaning process, the washing tank was filled with the cleaning agent D-1, the lead frame set in the basket was immersed, and ultrasonic cleaning was performed at 30 ° C, 5 min., 40 KHz. Then transferred to a steam cleaning tank, pel full O b octane (C g F 18) iO with (TC, 3min., It was dry with steam wash ⁇ .
- C g F 18 full O b octane
- Example 21 ' followed by Z or rinsing, followed by drying.
- the drying method was as follows: (1), (2), (2), (3), (5), and (5) and Comparative Example 7 were dried with warm air. Drying was performed in Example 22 and Projection Example 30 and Projection Example 36 by vacuum drying, and the other Examples and Comparative Examples used steam cleaning ⁇ with the composition shown in the table, respectively. Drying was performed. After the cleaning, the cleaning performance was evaluated by determining the ion residue, the insulation resistance, the presence or absence of the white residue, and the drying time. The evaluation method is described below. Tables 9 to 13 show the evaluation results. According to the results of Tables 9 to 13, the present invention has a lower ion resistance, a lower insulation resistance value, no white residue, a faster drying time, and faster cleaning and drying properties as compared with the comparative example. showed that.
- the resistance of the negative electrode of the comb-shaped substrate after drying was measured using a digital super resistance / micro flow meter (manufactured by Advantest Co., Ltd.). The resistance value is the average value measured three times.
- the dried combs were observed under a microscope, and the combs were arbitrarily mutated by the number of 20 white combs observed.
- the first cleaning agent of the present invention uses a solvent having a solubility parameter of 3 or less in the working oil used for the object to be washed and a solvent having a solubility parameter of 3 or less.
- a solvent having a solubility parameter of 3 or less used for the object to be washed and a solvent having a solubility parameter of 3 or less.
- the contact angle with the working oil within 15 °, the working oil existing in gaps such as a metal ribbon tightly wound with an oil film can be easily permeated and dissolved, and good cleaning can be performed.
- the use of at least one component selected from the group consisting of polyorganosiloxanes and organic compounds having the above-mentioned properties as a detergent further improves the permeation solubility.
- the washing of the present invention does not cause environmental destruction or environmental pollution as compared with the methane-based solvent or the salt-based solvent, and the washing ability is high.
- the first washing method of the present invention includes washing and rinsing, and even steam washing and casting. Can be performed with one detergent, which is advantageous.
- the cleaning of the precision part is more sufficiently performed.
- the cleaning liquid and the vapor cleaning agent have a structure that can be easily separated and regenerated, so that the cleaning cost is greatly reduced. I do.
- the second cleaning method of the present invention first of all, after cleaning with a polar cleaning device, rinsing is performed with a less polar or non-polar cleaning device, and then drying is performed. It can achieve both cleanability and dryness without causing environmental destruction and environmental pollution unlike fluorocarbon solvents and chlorine solvents.
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- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
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Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/553,270 US5789359A (en) | 1993-05-17 | 1994-05-17 | Detergent, method of cleaning, and apparatus for cleaning |
| EP94914630A EP0699746A4 (en) | 1993-05-17 | 1994-05-17 | CLEANING AGENTS, CLEANING METHOD AND CLEANING DEVICE |
| KR1019950705199A KR0168486B1 (ko) | 1993-05-17 | 1994-05-17 | 세정제, 세정방법 및 세정장치 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5/115072 | 1993-05-17 | ||
| JP11507293 | 1993-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1994026864A1 true WO1994026864A1 (fr) | 1994-11-24 |
Family
ID=14653485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1994/000796 Ceased WO1994026864A1 (fr) | 1993-05-17 | 1994-05-17 | Agent nettoyant et procede et appareil de nettoyage |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5789359A (ja) |
| EP (1) | EP0699746A4 (ja) |
| KR (1) | KR0168486B1 (ja) |
| CN (1) | CN1065564C (ja) |
| TW (3) | TW365551B (ja) |
| WO (1) | WO1994026864A1 (ja) |
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| US5492647A (en) * | 1995-05-08 | 1996-02-20 | Dow Corning Corporation | Octamethylcyclotetrasiloxane azeotropes |
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| JP3220013B2 (ja) | 1996-07-02 | 2001-10-22 | ジーイー東芝シリコーン株式会社 | 水切り用組成物 |
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| JPH04124289A (ja) * | 1990-09-12 | 1992-04-24 | Toshiba Corp | 洗浄方法および洗浄装置 |
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| US4052327A (en) * | 1974-01-07 | 1977-10-04 | Addressograph Multigraph Corporation | Compositions for eradicating electrophotographic images from translucent paper |
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| GB2220951B (en) * | 1988-07-08 | 1992-09-16 | Isc Chemicals Ltd | Cleaning and drying of electronic assemblies |
| FR2640995B1 (ja) * | 1988-12-23 | 1992-04-17 | Avenir 2000 Ste Civile Rech | |
| JPH0321688A (ja) * | 1989-06-19 | 1991-01-30 | Daikin Ind Ltd | 含フッ素アルコール系脱水剤および物品の脱水乾燥方法 |
| MY113225A (en) * | 1989-10-26 | 2001-12-31 | Momentive Performance Mat Jp | Vapor drying with polyorganosiloxane |
| US5503681A (en) * | 1990-03-16 | 1996-04-02 | Kabushiki Kaisha Toshiba | Method of cleaning an object |
| US5593507A (en) * | 1990-08-22 | 1997-01-14 | Kabushiki Kaisha Toshiba | Cleaning method and cleaning apparatus |
| DE4031563A1 (de) * | 1990-10-05 | 1992-04-09 | Zeiss Carl Fa | Verfahren zur reinigung von optischen bauelementen |
| EP0516029B1 (en) * | 1991-05-28 | 1995-04-05 | Daikin Industries, Limited | A method of desiccating articles |
| GB9118629D0 (en) * | 1991-08-30 | 1991-10-16 | Ici Plc | Cleaning composition |
| US5301701A (en) * | 1992-07-30 | 1994-04-12 | Nafziger Charles P | Single-chamber cleaning, rinsing and drying apparatus and method therefor |
| JP3347814B2 (ja) * | 1993-05-17 | 2002-11-20 | 大日本スクリーン製造株式会社 | 基板の洗浄・乾燥処理方法並びにその処理装置 |
| US5534078A (en) * | 1994-01-27 | 1996-07-09 | Breunsbach; Rex | Method for cleaning electronic assemblies |
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1994
- 1994-05-17 WO PCT/JP1994/000796 patent/WO1994026864A1/ja not_active Ceased
- 1994-05-17 CN CN94192640A patent/CN1065564C/zh not_active Expired - Fee Related
- 1994-05-17 KR KR1019950705199A patent/KR0168486B1/ko not_active Expired - Fee Related
- 1994-05-17 US US08/553,270 patent/US5789359A/en not_active Expired - Fee Related
- 1994-05-17 EP EP94914630A patent/EP0699746A4/en not_active Withdrawn
- 1994-05-19 TW TW085108374A patent/TW365551B/zh active
- 1994-05-19 TW TW090128433A patent/TW494135B/zh not_active IP Right Cessation
- 1994-05-19 TW TW083104538A patent/TW474989B/zh active
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|---|---|---|---|---|
| JPS6079098A (ja) * | 1983-10-06 | 1985-05-04 | キヤノン電子株式会社 | クリ−ニング液 |
| JPS61213297A (ja) * | 1985-03-14 | 1986-09-22 | ヘキスト・アクチエンゲゼルシヤフト | プラスチツク表面の手入れ剤 |
| JPH04124289A (ja) * | 1990-09-12 | 1992-04-24 | Toshiba Corp | 洗浄方法および洗浄装置 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5773403A (en) * | 1992-01-21 | 1998-06-30 | Olympus Optical Co., Ltd. | Cleaning and drying solvent |
| US5492647A (en) * | 1995-05-08 | 1996-02-20 | Dow Corning Corporation | Octamethylcyclotetrasiloxane azeotropes |
| JP3220013B2 (ja) | 1996-07-02 | 2001-10-22 | ジーイー東芝シリコーン株式会社 | 水切り用組成物 |
| JP2003041297A (ja) * | 2001-07-26 | 2003-02-13 | Ge Toshiba Silicones Co Ltd | 洗浄剤および洗浄方法 |
| JP2010526918A (ja) * | 2007-05-11 | 2010-08-05 | エクスプローラー プレスルーム ソリューションズ | 印刷機洗浄組成物 |
| CN104245161A (zh) * | 2011-12-05 | 2014-12-24 | 艺康美国股份有限公司 | 低泡沫固体槽洗涤剂 |
| CN104245161B (zh) * | 2011-12-05 | 2016-04-06 | 艺康美国股份有限公司 | 低泡沫固体槽洗涤剂 |
Also Published As
| Publication number | Publication date |
|---|---|
| US5789359A (en) | 1998-08-04 |
| CN1126488A (zh) | 1996-07-10 |
| KR960702510A (ko) | 1996-04-27 |
| EP0699746A4 (en) | 1996-09-11 |
| TW365551B (en) | 1999-08-01 |
| EP0699746A1 (en) | 1996-03-06 |
| TW474989B (en) | 2002-02-01 |
| CN1065564C (zh) | 2001-05-09 |
| TW494135B (en) | 2002-07-11 |
| KR0168486B1 (ko) | 1999-01-15 |
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