WO2023054884A1 - 몰딩용 에폭시 수지 조성물 - Google Patents
몰딩용 에폭시 수지 조성물 Download PDFInfo
- Publication number
- WO2023054884A1 WO2023054884A1 PCT/KR2022/011664 KR2022011664W WO2023054884A1 WO 2023054884 A1 WO2023054884 A1 WO 2023054884A1 KR 2022011664 W KR2022011664 W KR 2022011664W WO 2023054884 A1 WO2023054884 A1 WO 2023054884A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- epoxy resin
- resin composition
- molding
- stress reliever
- stress
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/62—Alcohols or phenols
- C08G59/621—Phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/68—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used
- C08G59/686—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/126—Polymer particles coated by polymer, e.g. core shell structures
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/128—Polymer particles coated by inorganic and non-macromolecular organic compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
-
- 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
- H10W74/00—Encapsulations, e.g. protective coatings
- H10W74/40—Encapsulations, e.g. protective coatings characterised by their materials
- H10W74/47—Encapsulations, e.g. protective coatings characterised by their materials comprising organic materials, e.g. plastics or resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/53—Core-shell polymer
Definitions
- the present invention relates to an epoxy resin composition for molding, a semiconductor device sealed using the same, or a vehicle part molded using the same.
- Japanese Patent Publication No. 2017-197620 relates to an epoxy resin composition for semiconductor encapsulation comprising an epoxy resin, a phenol resin curing agent and a filler, and electrical connection by adjusting the content of the filler and the thermal modulus of the cured product of the epoxy resin composition.
- a technique for increasing reliability is disclosed.
- Si silicon
- SiC silicon carbide
- silver (Ag) sintering is used to attach a chip and a substrate or to bond different types of materials.
- a technique of pre-forming a thin film layer of a silver material in order to increase bonding strength with the silver sintering material is widely used in areas where the silver sintering material is used.
- the silver material since the silver material has a lower adhesive strength with the sealing material than the conventional copper material, there is a problem in that peeling occurs easily due to external stress.
- Epoxy resin composition has high mechanical strength, heat resistance, electrical insulation, adhesiveness, etc., and is an excellent material for encapsulation of semiconductor elements, but it is resistant to the difference in linear expansion coefficient between semiconductor materials and elements, curing shrinkage, etc., or reflow. Residual stress is generated inside the encapsulant under high-temperature conditions, resulting in interfacial separation and cracking at the interface with the substrate or the encapsulated element.
- the epoxy resin composition may be used as a molding material for automotive parts, and may be specifically used to fill or fix parts. Molding materials of these vehicle parts must be stable against vibration and heat generated during driving of the vehicle, and in some cases, must be able to withstand deformation or cracking caused by high-speed rotation.
- the present invention provides an epoxy resin composition for molding that achieves both heat resistance, low stress resistance, and moisture resistance reliability at a high level, and has excellent handling properties and reproducibility of physical properties.
- the present invention provides a semiconductor element sealed using the epoxy resin composition or a vehicle part molded using the same.
- the present invention provides an epoxy resin composition
- an epoxy resin composition comprising an epoxy resin, a curing agent, a filler, and a stress reliever, wherein the particle size of the stress reliever aggregated in a kneaded product prepared by melt-kneading the epoxy resin composition is 1,500 nm or less. .
- the epoxy resin composition of the present invention is stably dispersed by appropriately controlling the size of particles in which the stress reliever is agglomerated in the kneaded material, thereby relieving thermal stress between the constituent materials of the molded material or between the constituent materials to be molded material. It has an effect of preventing liver peeling or cracking and suppressing cracking of the material to be molded or the constituent material.
- the epoxy resin composition according to the present invention can provide high reliability by improving heat resistance, low stress resistance, and moisture resistance to sealed semiconductor devices or vehicle parts.
- particle size is measured by conventional methods known in the art, and can be measured, for example, by laser light scattering (LLS).
- LLS laser light scattering
- Glass transition temperature is measured by a conventional method known in the art, and can be measured, for example, by thermomechanical analysis (TMA) or differential scanning calorimetry (DSC).
- Viscosity is measured by a conventional method known in the art, and can be measured using, for example, a capillary flowmeter tester (CFT) or a Brookfield viscometer.
- CFT capillary flowmeter tester
- the epoxy resin composition according to the present invention includes an epoxy resin, a curing agent, a filler, and a stress reliever, and by controlling the particle size of the stress reliever aggregated in a kneaded product obtained by melt-kneading the epoxy resin composition to 1,500 nm or less, can impart low-stress characteristics by effectively dispersing the stress reliever inside the molding material. Therefore, when sealing a semiconductor device or molding a vehicle part using the epoxy resin composition, it is possible to secure a balance between heat resistance, peeling resistance, thermal shock resistance, moisture resistance reliability, and internal stress relaxation. At this time, the particle size of the agglomerated stress reliever may be measured by scanning electron microscope (SEM).
- the epoxy resin composition of the present invention is a curing accelerator, a coupling agent, a colorant, a release agent, a modifier, a flame retardant, etc. It may further include one or more types of various additives commonly used in.
- the epoxy resin is used as a main resin, reacts with a curing agent and forms a three-dimensional network structure after curing, thereby imparting strong and firm adhesion and heat resistance to an adherend.
- an epoxy resin commonly used in the art may be used, and for example, one containing two or more epoxy groups in a molecular structure may be used.
- usable epoxy resins include bisphenol A-type epoxy resins, alicyclic epoxy resins, cresol novolac-type epoxy resins, dicyclopentadiene-type epoxy resins, biphenyl-type epoxy resins, naphthalene-type epoxy resins, and anthracene-type epoxy resins. resins, non-condensed cyclic polycyclic structure epoxy resins, bisphenol fluorene-modified epoxies, and the like, and may include one or more of these.
- the softening point (Soft Point) of the epoxy resin may be 40 to 130 °C, for example, 50 to 120 °C.
- Soft Point When the softening point of the epoxy resin falls within the above range, a kneaded product having good physical properties can be obtained during a manufacturing process using a kneader, a roll mill, or the like.
- melt kneading during the manufacturing process is lowered, resulting in lower uniformity of the prepared epoxy resin composition, and due to high viscosity, it becomes difficult to secure fillability during molding of a molding material.
- caking (caking) phenomenon occurs in the prepared epoxy resin composition, resulting in low storage stability, and due to low viscosity, the epoxy resin composition excessively flows out through gaps in the mold during use, causing equipment contamination. In addition, it may cause appearance defects such as voids and flashes inside and outside the molding material.
- the epoxy resin has an epoxy equivalent weight (EEW) of 100 to 400 g/eq, for example, 150 to 350 g/eq, and a viscosity (based on 150 °C) of 0.01 to 50 poise, for example, 0.01 to 10 poise, other For example, 0.01 to 5 poise may be used. Since the epoxy resin that satisfies the above physical properties has a relatively low viscosity, flowability can be secured even when a high content of filler is included, and kneading is easy.
- EW epoxy equivalent weight
- a viscosity based on 150 °C
- the content of the epoxy resin may be 2 to 20% by weight, for example 5 to 15% by weight. If the content of the epoxy resin is less than the above range, adhesion, flowability and moldability may be deteriorated. If the content of the epoxy resin exceeds the above range, the reliability of the molding material becomes poor due to an increase in moisture absorption, and the strength is reduced due to the relative decrease in the content of the filler. may be lowered.
- the epoxy resin composition according to the present invention includes a curing agent.
- the curing agent serves to advance curing of the composition by reacting with the epoxy resin.
- the curing agent a curing agent known in the art as having a curing reaction with an epoxy resin may be used.
- the curing agent may be a phenolic compound having two or more phenolic hydroxyl groups in one molecule.
- the curing agent may include at least one selected from the group consisting of a phenol novolak resin, a cresol novolac resin, a phenol aralkyl resin, and a multifunctional phenolic compound.
- the curing agent may have a softening point of 50 to 110 °C, for example, 60 to 100 °C.
- a melt-kneaded product having good physical properties can be obtained during a manufacturing process using a kneader, roll mill, or the like.
- the softening point of the curing agent exceeds the above-mentioned range, the melt kneading property during the manufacturing process is lowered, and thus the uniformity of the prepared epoxy resin composition is lowered, and it may be difficult to secure fillability when molding a molding material due to high viscosity.
- caking (caking) phenomenon occurs in the prepared epoxy resin composition, resulting in low storage stability, and due to low viscosity, the epoxy resin composition excessively flows out through gaps in the mold during use, causing equipment contamination. In addition, it may cause appearance defects such as voids and flashes inside and outside the molding material.
- the curing agent may have a hydroxyl equivalent of 80 to 300 g/eq, for example, 100 to 230 g/eq, and a viscosity (based on 150 °C) of 0.01 to 10 poise, for example, 0.01 to 8 poise.
- the content of the curing agent may be 1 to 20% by weight, for example 3 to 10% by weight.
- the mixing ratio of the epoxy resin and the curing agent may be adjusted according to mechanical properties and reliability required as a molding material, and may be mixed in an equivalent ratio of 1:0.6 to 1.3, for example.
- the equivalent ratio of the active group of the curing agent to the epoxy group is less than the above range, the curing rate of the resin composition may be slowed, and the strength of the cured product exceeding the above range may be reduced.
- high-temperature thermal decomposition due to an unreacted epoxy group or a curing agent may occur when the equivalence ratio is out of the range described above.
- the epoxy resin composition according to the present invention includes a filler.
- the filler improves the mechanical properties (eg, strength) of the epoxy resin composition and serves to lower the amount of moisture absorption.
- any inorganic filler commonly used in the art may be used without limitation.
- inorganic fillers such as silica, silica nitride, alumina, aluminum nitride, and boron nitride may be used, and these may be used alone. or may be used in combination of two or more.
- the shape of the filler is not particularly limited, and both angular and spherical shapes may be used.
- the particle diameter of the filler is not particularly limited, and may be, for example, in the range of 5 to 30 ⁇ m.
- the maximum particle diameter of the filler may be 250 ⁇ m or less, for example, 180 ⁇ m or less.
- the content of the filler may be 63 to 91% by weight, for example 65 to 90% by weight.
- the moisture absorption amount in the cured product of the epoxy resin composition may increase, thereby degrading the reliability of the molding material.
- the epoxy resin composition according to the present invention includes a stress reliever to improve impact resistance by imparting low-stress characteristics.
- the stress reliever may have a core-shell structure.
- the core component is not dissolved in the epoxy resin composition, it is possible to reduce stress by suppressing a decrease in heat resistance (glass transition temperature), and the shell component is not dissolved in the epoxy resin composition. It has excellent compatibility and affinity, and can be well dispersed.
- the core of the stress reliever may have rubber elasticity, but may be insoluble in epoxy resin.
- epoxy resin for example, butadienes such as polybutadiene, isoprene, and chloroprene, butadiene copolymers such as butadiene-styrene, and butyl (meth)acrylic (meth)acrylates or siloxanes such as late, 2-ethylhexyl acrylate, and lauryl methacrylate may be included, and these may be included alone or in combination of two or more.
- the shell of the stress reliever serves to improve the affinity between the epoxy resin and components constituting the core, and may be formed in a form graft-polymerized (bonded) to the core.
- a shell having swelling property, compatibility or affinity with the epoxy resin may be used.
- the shell may include (meth)acrylates such as methyl (meth)acrylate, acrylate copolymers such as styrene, and the like, and may include these alone or in combination of two or more.
- the (co)polymer constituting the shell may be surface treated with organic/inorganic functional groups to improve dispersibility.
- the organic/inorganic functional groups include organic functional groups such as hydroxyl groups, methyl groups, and ethyl groups, and inorganic functional groups such as silane groups.
- the individual particle size of the stress reliever may be 500 nm or less, for example 20 to 500 nm, and another example 20 to 400 nm.
- the stress reliever may be well dispersed in the kneaded material. If the particle size is less than the above range, the viscosity of the epoxy resin composition may increase and problems such as unfilling of the molding material may occur. , mechanical properties such as strength may be reduced.
- the stress reliever is dispersed in a kneaded product prepared by melting and kneading the epoxy resin composition, but may exist in a form in which some of them are aggregated with each other.
- the particle size of the aggregated stress reliever may be 1,500 nm or less, for example, 10 to 1,500 nm, and another example, 50 to 1,000 nm.
- the stress-reducing property may not be sufficiently expressed, and mechanical properties such as strength may be deteriorated.
- flowability may be weakened.
- the stress reliever is present in the form of particles having a size of tens to hundreds of microns by aggregating individual particles having a size of 500 nm or less before being added into the epoxy resin composition. In this way, when the stress reliever, which is aggregated into tens to hundreds of micro-sized particles, is not dispersed and exists inside the molding material as it is, the effective low-stress characteristics are not exhibited, and cracks caused by external stress, etc. It can be.
- the present invention is to properly disperse the stress reliever in the molding material to have sufficient low stress, and specifically, the particle size of the stress reliever aggregated in the melt-kneaded mixture of the epoxy resin composition is reduced to 1,500 nm or less. By adjusting, it is possible to provide a molding material having excellent reliability by imparting low stress characteristics and impact resistance.
- the particle size can be controlled by simultaneously introducing a stress reliever together with an epoxy resin, a curing agent, a filler, etc. into the epoxy resin composition and melt-kneading the composition.
- a pre-dispersion resin composition obtained by pre-dispersing all or part of the stress reliever in the pre-dispersion resin is formed, and then epoxy resin is mixed with the rest of the components. It can be kneaded in 2 steps (2 steps) to put into the resin composition.
- the resin for pre-dispersion at least one part or all of the epoxy resin and the curing agent may be used.
- part or all of the stress reliever may be pre-dispersed in part or all of the epoxy resin, and then added into the epoxy resin composition including the remaining amount of the epoxy resin, the remaining amount of the stress reliever, the curing agent, and the filler.
- part or all of the stress reliever may be pre-dispersed in part or all of the curing agent, and then added into the epoxy resin composition including the epoxy resin, the remaining amount of the stress reliever, the remaining amount of the curing agent, and the filler.
- the stress reliever is pre-dispersed while rotating at high speed using a stirrer.
- the aggregation size of the stress reliever may be controlled to be 1,500 nm or less by increasing the stirring temperature or increasing the stirring speed during the pre-dispersion.
- the dispersion temperature may be controlled at 200° C. or less, and carbonization of the resin may occur when the temperature exceeds 200° C.
- the stress reliever based on the total weight of the pre-dispersion resin composition. 5 to 50% by weight, for example, 10 to 30% by weight may be included.
- the amount of the stress reliever in the epoxy resin composition may be limited, and when it exceeds the above range, the viscosity of the pre-dispersion resin composition increases, resulting in moldability and moldability. This may decrease, and the dispersibility may decrease.
- the content of the stress reliever may be 0.5 to 10% by weight, for example, 1 to 5% by weight. If the content of the stress reliever is less than the above range, the low stress effect may not be sufficiently expressed, and if it exceeds the above range, mechanical properties such as strength are reduced, or thermal properties such as glass transition temperature and thermal expansion coefficient are weak. can lose
- the epoxy resin composition according to the present invention may further include a curing accelerator.
- the curing accelerator promotes the curing reaction and serves to improve the cycle of high-temperature reliability and continuous workability.
- the curing accelerator conventional ones used to promote curing reaction in the art may be used without limitation.
- imidazole compounds such as 2-methylimidazole, 2-ethyl-4-methylimidazole, and 2-phenylimidazole
- amine compounds such as triethylamine, tributylamine, and benzyldimethylamine
- tertiary amine compounds such as 2-(dimethylaminomethyl)phenol, 2,4,6-tris(dimethylaminomethyl)phenol, and 1,8-diazabicyclo(5,4,0)undec-7-ene
- Organic phosphine compounds such as phenylphosphine, diphenylphosphine, triphenylphosphine, tributylphosphine, and tri(p-methylphenyl)phosphine may be used, and these may be used alone or in combination of two or more. there is.
- the content of the curing accelerator may be 0.05 to 1% by weight, for example 0.05 to 0.5% by weight.
- curability may be deteriorated, and when it exceeds the above range, flowability may be deteriorated due to overcuring.
- the epoxy resin composition according to the present invention may additionally include additives commonly used in the art to the extent that imparts a specific function or effect, does not deviate from its purpose, and does not impair the physical properties of the epoxy resin composition of the present invention.
- additives commonly used in the art to the extent that imparts a specific function or effect, does not deviate from its purpose, and does not impair the physical properties of the epoxy resin composition of the present invention.
- usable additives include a coupling agent, a colorant, a release agent, a modifier, a flame retardant, or a mixture of two or more thereof.
- the epoxy resin composition of the present invention exhibits excellent flame retardancy by itself due to a high filler content, but may further include a flame retardant to further improve flame retardancy.
- Flame retardants include metal hydroxides; Phosphorus and nitrogen-containing organic compounds (eg, resorcinol diphosphate, phosphate, phenoxyphosphazene, melamine cyanurate, and phenol melamine resin) may be used alone or in combination of two or more, but are not necessarily limited thereto. no.
- a coupling agent is added for stable dispersion of organic and inorganic materials, and epoxy silane, amino silane, mercapto silane, acrylic silane, vinyl silane, etc. may be used as the coupling agent.
- a colorant eg, carbon black, bengala, etc.
- an ion trapping agent eg, hydrotalcite
- long-chain fatty acids e.g, metal salts of long-chain fatty acids
- paraffin wax e.g., paraffin wax
- carnauba wax e.g., paraffin wax
- polyethylene e.g., polyethylene
- Additives such as a release agent such as wax, a modifier, and a modified silicone resin may be further included.
- the additives may be added within a content range known in the art, and for example, based on the total weight of the epoxy resin composition, each may be included in an amount of 0.05 to 5% by weight, but is not limited thereto.
- the epoxy resin composition according to the present invention can be prepared by a conventional method known in the art, for example, a melt-kneading method using a banbari mixer, kneader, roll, single or twin screw extruder and conneader, and the like.
- a melt-kneading method using a banbari mixer, kneader, roll, single or twin screw extruder and conneader, and the like.
- an epoxy resin composition in which each component is uniformly mixed as described above is melt-mixed at a temperature of 80 to 130 ° C. using a heat kneader, cooled to room temperature, and then pulverized into a powder state. After that, a kneaded product may be obtained through a sieving process.
- the epoxy resin composition for molding according to the present invention can express excellent heat resistance, exfoliation resistance, and internal stress reducing effect through good dispersion of the stress reliever by controlling the particle size of the stress reliever aggregated in the kneaded material.
- the epoxy resin composition for molding according to the present invention has low stress characteristics due to an appropriately dispersed stress reliever, and may have an elastic modulus (30° C.) of 11 to 20 Gpa.
- the low-stress epoxy resin composition of the present invention has an effect of suppressing cracks and cracks caused by external stress, and thus can provide high reliability to sealed semiconductor devices or automotive parts molded using the same. .
- the epoxy resin composition according to the present invention is molded in a heat transfer molding machine (pressure 70 kg / cm 2, temperature 175 ° C, curing time 120 seconds) using a spiral flow mold, and the measured flowability is 15 to 15 100 inches, for example 20 to 80 inches. If the spiral flow is less than the above range, the flowability and fluidity may deteriorate, so that the molded article may not be molded in a desired shape or the surface may not be formed smoothly. It may flow out and cause equipment contamination, and it may cause appearance defects such as voids and flashes inside and outside of the molding material.
- the epoxy resin composition of the present invention may be prepared in powder form, granule form (granule), or sheet form by processing the kneaded material into a desired form, depending on the aspect in which it is used.
- the epoxy resin composition of the present invention can be used for power semiconductor molding by suppressing warpage or deformation of a material to be molded.
- the epoxy resin composition for molding of the present invention can be applied to semiconductor packaging for power modules and power semiconductor packaging that are frequently exposed to harsh conditions (high power, high pressure).
- it can be applied to highly integrated semiconductor packages and semiconductor packages made of heterogeneous materials such as silicon carbide (Si-C) and nitride-based ceramics (AlN, Si 3 N 4 ).
- the epoxy resin composition for molding of the present invention can be applied as a molding material for vehicle parts requiring excellent vibration resistance, heat resistance, dimensional stability and deformation resistance, and can be used to fill or fix parts.
- the present invention provides a semiconductor device sealed using the epoxy resin composition described above.
- the semiconductor device may be a transistor, a diode, a microprocessor, a semiconductor memory, or a power semiconductor.
- a method of encapsulating a semiconductor device using the epoxy resin composition of the present invention may be performed according to a conventional method in the art, such as a transfer mold, a compression mold, an injection mold, or the like.
- the present invention provides a vehicle part molded using the above-described epoxy resin composition.
- components in parts for a vehicle may be fixed and sealed by using the above-described epoxy resin composition as a molding material.
- the permanent magnets in the rotor core may be fixed by filling the epoxy resin composition of the present invention.
- Epoxy resin compositions of each experimental example were prepared by blending each component according to the composition shown in Tables 1 and 2 below.
- the epoxy resin composition of each experimental example was melt-mixed at a temperature of 90 to 130 ° C using a melt kneader, cooled to room temperature, ground into powder, and then 20 mesh and 80 mesh sieving process Through, a kneaded product was obtained.
- SEM Sccanning electron microscope, FEI, QUANTA 3D FEG
- the magnification of SEM was changed from 10,000 to 50,000 depending on the size of the agglomerated particles.
- the size of the agglomerated stress reliever observed from the cross-sectional SEM images of 10 locations randomly selected for each experimental example was measured, and the maximum size of the measured sizes was used as the particle size of the agglomerated stress reliever. Tables 1 and 2 are shown.
- Epoxy resin A-1 ortho cresol novolak type epoxy resin (softening point 62 ° C., epoxy equivalent 201 g / eq., melt viscosity (150 ° C.) 0.3 poise)
- Curing agent B-1 phenolic resin (softening point 84 ° C., epoxy equivalent 107 g / eq., melt viscosity (150 ° C.) 2.0 poise)
- Filler C-1 Silica (average particle diameter 19.9 ⁇ m)
- Stress reliever D-1 core-shell (average particle diameter: 250 nm, core: Co-polymer siloxane, shell: ACRYL)
- Stress reliever D-4 core-shell (average particle diameter: 430 nm, core: BUTADIENE, shell: ACRYL)
- Pre-dispersion resin E-1 Stress reliever pre-dispersion resin of Preparation Example 1 (softening point 66 ° C, epoxy equivalent 251 g / eq, melt viscosity (150 ° C) 6.0 poise)
- Pre-dispersion resin E-2 Stress reliever pre-dispersion resin of Preparation Example 2
- Pre-dispersion resin E-3 Stress reliever pre-dispersion resin of Preparation Example 3
- Curing accelerator F-1 imidazole-based curing accelerator
- Additive G-2 Carnauba Wax
- the kneaded product of the epoxy resin composition prepared in each experimental example was molded at 175 ° C. for 120 seconds in a transfer molding method to mold a specimen for physical property evaluation, and post-cured at 175 ° C. for 4 hours.
- thermo-mechanical analyzer TMA
- the glass transition temperature was obtained using an onset point technique.
- the thermal expansion coefficient was measured based on the range of 80 to 120 °C.
- a TO-247 package was molded using an Ag-plated general-purpose lead frame using MGP (Multi gang pot) equipment.
- the molded package was post-cured, subjected to an IR reflow process at 260 ° C. five times, and internal peeling was confirmed using scanning acoustic tomography (SAT).
- SAT scanning acoustic tomography
- Experimental Examples 1-7 according to the present invention exhibited excellent physical properties in all measurement items.
- Experimental Examples 2, 6, and 7 in which the stress reliever was pre-dispersed into the epoxy resin or the curing agent exhibited particularly excellent strength and peeling resistance.
- Experimental Example 8 in which no stress reliever was used, Experimental Examples 9, 10, 12, and 13 in which the particle size of the aggregated stress reliever was out of the scope of the present invention, and Experimental Example 11 in which the content of the stress reliever was out of the scope of the present invention , In the case of 12, it showed poor physical properties compared to Experimental Example 1-7.
- the epoxy resin composition of the present invention is stably dispersed by appropriately controlling the size of particles in which the stress reliever is agglomerated in the kneaded material, thereby relieving thermal stress between the constituent materials of the molded material or between the constituent materials to be molded material. It has an effect of preventing liver peeling or cracking and suppressing cracking of a material to be molded or a constituent material.
- the epoxy resin composition according to the present invention can provide high reliability by improving heat resistance, low stress resistance, and moisture resistance to sealed semiconductor devices or vehicle parts.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Epoxy Resins (AREA)
Abstract
Description
Claims (9)
- 에폭시 수지, 경화제, 충전재 및 응력 완화제를 포함하는 몰딩용 에폭시 수지 조성물로서,상기 에폭시 수지 조성물을 용융 혼련하여 제조된 혼련물을 SEM(Scanning electron microscope)으로 측정 시 응집된 응력 완화제의 입자 사이즈가 1,500 nm 이하인 몰딩용 에폭시 수지 조성물.
- 제1항에 있어서,상기 응력 완화제는 코어-쉘 구조이고,상기 응력 완화제의 코어가 부타디엔류, 부타디엔 공중합체류, (메타)아크릴레이트류 및 실록산류 수지로 이루어진 군에서 선택되는 1종 이상을 포함하고,상기 응력 완화제의 쉘이 (메타)아크릴레이트 중합체 및 아크릴레이트 공중합체로 이루어진 군에서 선택되는 1종 이상을 포함하는 몰딩용 에폭시 수지 조성물.
- 제2항에 있어서, 상기 쉘을 구성하는 (메타)아크릴레이트 중합체 및 아크릴레이트 공중합체 중 1종 이상이 유무기 작용기로 표면 처리된 것인 몰딩용 에폭시 수지 조성물.
- 제1항에 있어서,상기 응력 완화제의 일부 또는 전부는 선분산용 수지에 선분산되어 선분산 수지 조성물을 형성한 후 상기 에폭시 수지 조성물 내에 투입되고,상기 선분산용 수지는 상기 에폭시 수지의 일부 또는 전부; 및 상기 경화제의 일부 또는 전부; 중 하나 이상인 몰딩용 에폭시 수지 조성물.
- 제4항에 있어서,상기 선분산 수지 조성물의 총 중량을 기준으로. 상기 응력 완화제 5 내지 50 중량%를 포함하는 몰딩용 에폭시 수지 조성물.
- 제1항에 있어서,상기 에폭시 수지 조성물 총 중량에 대하여, 상기 에폭시 수지 2 내지 20 중량%, 상기 경화제 1 내지 20 중량%, 상기 충전재 63 내지 91 중량% 및 상기 응력 완화제 0.5 내지 10 중량%를 포함하는 몰딩용 에폭시 수지 조성물.
- 제1항에 있어서,상기 에폭시 수지 조성물은 30 ℃에서 UTM(Universal test machine) 3 point bending 방식으로 측정된 탄성률이 11 - 20 GPa인 몰딩용 에폭시 수지 조성물
- 제1항 내지 제7항 중 어느 한 항에 따른 에폭시 수지 조성물을 이용하여 봉지된 반도체 소자.
- 제1항 내지 제7항 중 어느 한 항에 따른 에폭시 수지 조성물을 이용하여 몰딩된 차량용 부품.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/282,379 US20240158628A1 (en) | 2021-09-28 | 2022-08-05 | Epoxy resin composition for molding |
| EP22876659.8A EP4410890A4 (en) | 2021-09-28 | 2022-08-05 | EPOXY RESIN COMPOSITION FOR CASTING |
| JP2023562318A JP7802823B2 (ja) | 2021-09-28 | 2022-08-05 | モールディング用エポキシ樹脂組成物 |
| CN202280021448.4A CN116997608A (zh) | 2021-09-28 | 2022-08-05 | 模塑用环氧树脂组合物 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2021-0127968 | 2021-09-28 | ||
| KR1020210127968A KR102571498B1 (ko) | 2021-09-28 | 2021-09-28 | 몰딩용 에폭시 수지 조성물 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023054884A1 true WO2023054884A1 (ko) | 2023-04-06 |
Family
ID=85780831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2022/011664 Ceased WO2023054884A1 (ko) | 2021-09-28 | 2022-08-05 | 몰딩용 에폭시 수지 조성물 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20240158628A1 (ko) |
| EP (1) | EP4410890A4 (ko) |
| JP (1) | JP7802823B2 (ko) |
| KR (1) | KR102571498B1 (ko) |
| CN (1) | CN116997608A (ko) |
| WO (1) | WO2023054884A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025025644A1 (zh) * | 2023-07-28 | 2025-02-06 | 深圳市洲明科技股份有限公司 | 环氧树脂组合物及其制备方法、显示模组与显示装置 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20250176701A (ko) * | 2024-06-13 | 2025-12-22 | 주식회사 케이씨씨 | 사출 성형용 몰딩재 조성물 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006143950A (ja) * | 2004-11-24 | 2006-06-08 | Sumitomo Bakelite Co Ltd | エポキシ樹脂組成物及び半導体装置 |
| KR100830776B1 (ko) * | 2005-03-01 | 2008-05-20 | 닛토덴코 가부시키가이샤 | 에폭시 수지 조성물의 경화체, 그 제조방법 및 그 경화체를 사용한 광반도체 장치 |
| JP2011195742A (ja) * | 2010-03-23 | 2011-10-06 | Sumitomo Bakelite Co Ltd | 液状樹脂組成物、半導体パッケージ、および半導体パッケージの製造方法 |
| JP2017019988A (ja) * | 2015-07-10 | 2017-01-26 | 東レ株式会社 | ポリマー微粒子、その製造方法、エポキシ樹脂組成物および半導体封止材 |
| KR20170010577A (ko) * | 2015-07-20 | 2017-02-01 | 주식회사 케이씨씨 | 반도체 봉지용 수지 조성물의 제조방법 |
| JP2017197620A (ja) | 2016-04-26 | 2017-11-02 | 住友ベークライト株式会社 | 半導体封止用エポキシ樹脂組成物および半導体装置の製造方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005255822A (ja) * | 2004-03-11 | 2005-09-22 | Kaneka Corp | ゴム強化エポキシ樹脂製品 |
| CA2577681C (en) * | 2004-08-18 | 2013-10-08 | Kaneka Corporation | Epoxy resin composition for semiconductor sealing agents and epoxy resin molding material |
| JP2009073933A (ja) * | 2007-09-20 | 2009-04-09 | Toto Kasei Co Ltd | 耐熱劣化性を有するエポキシ樹脂組成物 |
| CN107353586A (zh) * | 2011-12-27 | 2017-11-17 | 日立化成工业株式会社 | 电子部件用液状树脂组合物及其制造方法、以及电子部件装置 |
| EP3056540B1 (en) * | 2013-10-11 | 2020-02-19 | Kaneka Corporation | Core-shell polymer-containing epoxy resin composition, cured product of same and method for producing same |
| JP6061837B2 (ja) * | 2013-12-05 | 2017-01-18 | アイシン化工株式会社 | 構造用接着剤組成物 |
| JP6722477B2 (ja) * | 2015-04-09 | 2020-07-15 | 株式会社カネカ | 剥離接着性および耐衝撃剥離接着性の改善されたポリマー微粒子含有硬化性樹脂組成物 |
| US12173195B2 (en) * | 2018-07-25 | 2024-12-24 | Lg Chem, Ltd. | Adhesive composition |
| CN112449650B (zh) * | 2018-07-25 | 2023-03-28 | 株式会社Lg化学 | 粘合剂组合物 |
| JP7547031B2 (ja) * | 2019-03-19 | 2024-09-09 | 株式会社カネカ | エポキシ樹脂組成物及び接着剤 |
-
2021
- 2021-09-28 KR KR1020210127968A patent/KR102571498B1/ko active Active
-
2022
- 2022-08-05 CN CN202280021448.4A patent/CN116997608A/zh active Pending
- 2022-08-05 US US18/282,379 patent/US20240158628A1/en active Pending
- 2022-08-05 JP JP2023562318A patent/JP7802823B2/ja active Active
- 2022-08-05 EP EP22876659.8A patent/EP4410890A4/en active Pending
- 2022-08-05 WO PCT/KR2022/011664 patent/WO2023054884A1/ko not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006143950A (ja) * | 2004-11-24 | 2006-06-08 | Sumitomo Bakelite Co Ltd | エポキシ樹脂組成物及び半導体装置 |
| KR100830776B1 (ko) * | 2005-03-01 | 2008-05-20 | 닛토덴코 가부시키가이샤 | 에폭시 수지 조성물의 경화체, 그 제조방법 및 그 경화체를 사용한 광반도체 장치 |
| JP2011195742A (ja) * | 2010-03-23 | 2011-10-06 | Sumitomo Bakelite Co Ltd | 液状樹脂組成物、半導体パッケージ、および半導体パッケージの製造方法 |
| JP2017019988A (ja) * | 2015-07-10 | 2017-01-26 | 東レ株式会社 | ポリマー微粒子、その製造方法、エポキシ樹脂組成物および半導体封止材 |
| KR20170010577A (ko) * | 2015-07-20 | 2017-02-01 | 주식회사 케이씨씨 | 반도체 봉지용 수지 조성물의 제조방법 |
| JP2017197620A (ja) | 2016-04-26 | 2017-11-02 | 住友ベークライト株式会社 | 半導体封止用エポキシ樹脂組成物および半導体装置の製造方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4410890A4 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025025644A1 (zh) * | 2023-07-28 | 2025-02-06 | 深圳市洲明科技股份有限公司 | 环氧树脂组合物及其制备方法、显示模组与显示装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7802823B2 (ja) | 2026-01-20 |
| KR20230045288A (ko) | 2023-04-04 |
| JP2024514135A (ja) | 2024-03-28 |
| EP4410890A1 (en) | 2024-08-07 |
| US20240158628A1 (en) | 2024-05-16 |
| CN116997608A (zh) | 2023-11-03 |
| EP4410890A4 (en) | 2025-09-24 |
| KR102571498B1 (ko) | 2023-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3261907B2 (ja) | 半導体封止用エポキシ樹脂組成物及び半導体装置 | |
| JPH06102714B2 (ja) | エポキシ樹脂組成物及び半導体装置 | |
| KR102571498B1 (ko) | 몰딩용 에폭시 수지 조성물 | |
| WO2022240037A1 (ko) | 에폭시 수지 조성물 | |
| WO2021096237A1 (ko) | 에폭시 복합 조성물 및 이를 포함하는 반도체 패키지 | |
| US6521354B1 (en) | Epoxy resin composition and semiconductor device | |
| JP4905668B2 (ja) | 半導体封止用液状エポキシ樹脂組成物及び半導体装置 | |
| JPH11263826A (ja) | 半導体封止用エポキシ樹脂組成物及び半導体装置 | |
| WO2025058307A1 (ko) | 몰딩용 에폭시 수지 조성물 | |
| JP3240861B2 (ja) | エポキシ樹脂組成物及び半導体装置 | |
| WO2023128236A1 (ko) | 과립형 에폭시 수지 조성물 | |
| WO2019117452A1 (ko) | 반도체 소자 밀봉용 에폭시 수지 조성물 및 이를 이용하여 밀봉된 반도체 장치 | |
| KR102925042B1 (ko) | 에폭시 수지 조성물 | |
| JP2003212957A (ja) | 半導体封止用エポキシ樹脂組成物及び半導体装置 | |
| WO2021071158A1 (ko) | 에폭시 수지 조성물 | |
| JPH11181236A (ja) | 半導体封止用エポキシ樹脂組成物及び半導体装置 | |
| KR100384273B1 (ko) | 반도체 소자 봉지용 에폭시 수지 조성물 | |
| JP3309688B2 (ja) | エポキシ樹脂組成物の製造方法 | |
| WO2025216509A1 (ko) | 몰딩용 에폭시 수지 조성물 | |
| WO2023128253A1 (ko) | 과립형 에폭시 수지 조성물 | |
| WO2025058305A1 (ko) | 액상 에폭시 수지 조성물 | |
| WO2023068610A1 (ko) | 과립형 반도체 소자 봉지용 수지 조성물 | |
| WO2024151075A1 (ko) | 전자 디바이스 밀봉용 수지 조성물 및 이를 사용하여 제조된 전자 디바이스 | |
| WO2025058306A1 (ko) | 몰딩용 에폭시 수지 조성물 | |
| JP2658749B2 (ja) | 半導体封止用樹脂組成物及び半導体装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22876659 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202280021448.4 Country of ref document: CN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 18282379 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2023562318 Country of ref document: JP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2022876659 Country of ref document: EP Effective date: 20240429 |



