EP4427265A1 - Chambre à vapeur - Google Patents
Chambre à vapeurInfo
- Publication number
- EP4427265A1 EP4427265A1 EP22805882.2A EP22805882A EP4427265A1 EP 4427265 A1 EP4427265 A1 EP 4427265A1 EP 22805882 A EP22805882 A EP 22805882A EP 4427265 A1 EP4427265 A1 EP 4427265A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- substrate
- substrates
- cavity
- fluid
- trade name
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
- C03B25/02—Annealing glass products in a discontinuous way
-
- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
-
- 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
- H10W40/00—Arrangements for thermal protection or thermal control
- H10W40/01—Manufacture or treatment
- H10W40/03—Manufacture or treatment of arrangements for cooling
- H10W40/037—Assembling together parts thereof
-
- 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
- H10W40/00—Arrangements for thermal protection or thermal control
- H10W40/70—Fillings or auxiliary members in containers or in encapsulations for thermal protection or control
- H10W40/73—Fillings or auxiliary members in containers or in encapsulations for thermal protection or control for cooling by change of state
Definitions
- This description relates generally to the cooling of systems, such as mechanical systems or electronic systems. More specifically, the description concerns a cooling device of the “steam chamber” type and its method of manufacture.
- cooling devices such as air conditioning systems, heat pipes, vapor chambers, etc. It is common to associate a cooling device with a system susceptible to overheating by positioning it close to a hot spot of this system.
- One embodiment overcomes all or part of the drawbacks of known vapor chambers.
- One embodiment overcomes all or part of the drawbacks of known methods of manufacturing vapor chambers.
- said compartment is a vapor chamber, and the fluid is a cooling fluid.
- the method further comprises a first step of degassing said first and second substrates carried out before the filling step.
- the first degassing step is hot degassing.
- the method further comprises a second step of degassing the environment of said first and second substrates carried out after the filling step.
- the first and second substrates are brought close together to limit the evaporation of the fluid.
- At least one second cavity is formed from the second face of the second substrate.
- the positioning step comprises aligning said at least one second cavity with said at least one first cavity.
- said at least one first cavity is filled with a volume of cooling fluid greater than the volume of said at least one first cavity.
- the first substrate and the second substrate are made of a semiconductor material, silicon, or glass.
- the semiconductor material comprises silicon.
- the annealing is carried out at a temperature of between about 175 and about 400°C.
- the annealing is carried out at a temperature of the order of 200°C.
- the pressure of said first and second substrates is carried out with a force of between 0.5 and 2 kN.
- the cooling fluid is chosen from the non-exhaustive group comprising: water, helium, hydrogen, oxygen, nitrogen, sulphide, neon, argon, methane, krypton, mercury, ammonia, acetone, ethane, pentane, heptane, ethanol, methanol, ethylene glycol, toluene, naphthalene, trichlorofluoromethane, dichlorofluoromethane (CHC1L2F, also known under the trade name Freon 21), chlorodifluoromethane (CHC1F2, also known under the trade name Freon 22), 1, 1, 2-Trichloro-1, 2, 2-trichloroethane (C2C13F3, also known under the trade name Freon 113), the fluid known under the trade name Flutec PP2, the fluid known under the trade name Flutec PP9, the fluid known under the trade name Dowtherm, the fluid known under the trade name Novec, and derivatives and mixtures of
- Another embodiment provides a vapor chamber fabricated using the method previously described.
- Another embodiment provides an apparatus adapted to implement the method described above.
- the apparatus is adapted to simultaneously perform annealing and pressing of the first substrate and of the second substrate against each other with a force of between 0.5 and 2 kN.
- Figure 1 shows a sectional and functional view, schematic, of a vapor chamber associated with an electronic device
- Figure 2 shows a schematic sectional view of an embodiment of a substrate used for the manufacture of vapor chambers
- Figure 3 shows a schematic sectional view of an embodiment of vapor chambers using the substrate of Figure 2;
- Figure 4 shows two sectional views, schematic and partially in the form of blocks, of a device used for the manufacture of the vapor chambers of Figure 2;
- Figure 5 shows a sectional view illustrating the positioning of the substrate of Figure 2 in the system of Figure 4;
- FIG. 6 represents a block diagram illustrating steps of an embodiment of a method for manufacturing the vapor chambers of FIG. 2;
- FIG. 7 represents four sectional views illustrating an example of a method for bonding two substrates that can be used in the method of FIG. 6;
- Figure 8 shows a sectional view of a cavity with which a variant of the method of Figure 6 can be implemented
- Figure 9 schematically shows a sectional view of another cavity with which a variant of the method of Figure 6 can be implemented.
- Figure 10 schematically shows a sectional view of a micro-battery with which a variant of the method of Figure 6 can be implemented.
- Figure 1 is a sectional, functional and schematic view of an electronic system 100 comprising a vapor chamber 150.
- the electronic system 100 is mounted on a substrate
- the substrate 200 is, for example, a solid substrate, or a printed circuit board, etc.
- the electronic system 100 is composed of an electronic device 120 and the vapor chamber 150.
- the electronic device 120 is arbitrary, and can comprise one or more components, one or more circuits, for example one or more printed circuits, etc. These components are represented, in FIG. 1, by a layer 121.
- the device 120 also comprises at least one hot spot 123, that is to say a zone capable of giving off high heat, or a zone liable to overheat.
- This hot spot 123 can correspond to part of a component, an entire component, a set of components, a conductor, etc.
- the hot spot 123 is represented, in FIG. 1, by a block 123.
- the vapor chamber 150 includes a cavity 151 formed in a substrate 153.
- the cavity 151 is filled with a fluid 155 cooling.
- On the walls of the cavity 151 is arranged a structure 157 of return by capillarity.
- the vapor chamber 150 is arranged to help cool the hot spot 123 of the device 120.
- a lower face 158 of the cavity 151 is positioned against the hot spot 123 of the electronic device 120, this face is called evaporator.
- An upper face 159 of the electronic device 120, opposite face 158, is called a condenser.
- the upper face 159 can be attached to a heat sink not shown in Figure 1.
- the operation of the steam chamber 150 is as follows. At rest, that is to say when the hot spot 123 does not release heat, the fluid 155 is in equilibrium between its gaseous phase, or vapor phase, and its liquid phase. When the hot spot 123 produces heat, the fluid 155 directly close to the hot spot 123 evaporates, and creates a movement of vapor within the cavity 151. More particularly, the fluid 155 in the vapor phase moves away from the face 158, for example by going towards the face 159, which is symbolized, in FIG. 1, by an arrow F1. Once the fluid 155 in the vapor phase reaches the face 159 of the cavity, it meets the structure 157 back by capillarity and condenses back to its liquid phase.
- Figure 2 is a sectional view of one embodiment of a substrate 300.
- the substrate 300 is, for example, a semiconductor material, such as a material comprising silicon. According to a variant, the substrate 300 can be made of glass.
- the substrate 300 is intended for the manufacture of vapor chambers, and has undergone various preparation operations for this manufacture.
- cavities 301 are formed from an upper face 303 of substrate 300.
- Each cavity 301 is intended to form, totally or in part, the cavity of a vapor chamber of the chamber type. vapor described in relation to FIG. 1.
- the cavities 301 can be obtained by various masking and etching processes.
- capillary return structures 305 are formed in the bottom of the cavities 301.
- the capillary return structures 305 are also on the side walls of the cavities 301.
- the structure 305 return by capillarity is a structure called "wick" which can comprise porous structures such as grooves or metal foams, such as copper foams having pores of minimum dimension of the order of 1 ⁇ m.
- the capillary return structure can be a porous structure made from a substrate, for example copper or silicon, in which are formed grooves, for example of width of the order of 1 ⁇ m to 1 mm, and/or columns, for example of a width of the order of 1 ⁇ m to 1 mm.
- the substrate 300 may have a thickness E of between 200 and 300 ⁇ m, for example of the order of 225 ⁇ m. According to one example, the substrate may have been thinned to have such a thickness.
- the cavities 301 can have a depth P of between 50 and 100 ⁇ m, for example of the order of 75 ⁇ m.
- Figure 3 is a sectional view of an embodiment of a system 400 comprising steam chambers 401. More particularly, the system 400 comprises, in Figure 3, four steam chambers 401 identical to the variations of manufacturing close.
- the system 400 is formed from two similar substrates 403 and 405 and of the type of substrate 300 described in relation to FIG. 2.
- each substrate 403, 405 comprises cavities formed from one of its faces .
- the cavities of the substrates 403 and 405 are filled with a cooling fluid 407 then the substrates 403 and 405 are assembled together by a bonding process. More particularly, the two faces from which the cavities of the substrates 403 and 405 extend are glued, and the cavities of the substrates 403 and 405 are aligned.
- Each enclosure formed by the connection of a cavity of the substrate 403 and a cavity of the substrate 405 is intended to form a vapor chamber.
- the filling and bonding processes used to form system 400 are described in more detail in connection with Figures 4 through 6.
- the cooling fluid 407 is chosen from the non-exhaustive group comprising: water, helium, hydrogen, oxygen, nitrogen, sulphide, neon , argon, methane, krypton, mercury, ammonia (NH3), acetone (C3H6O), 1 ethane
- C2H6 pentane (C5H12), heptane (C7H16), ethanol (C2H5OH), methanol (CH3OH), ethylene glycol (C2H6O2), toluene (C7H8), naphthalene (C10H8), trichlorofluoromethane (CC13F, also known under the trade name Freon 11), dichlorofluoromethane (CHC12F, also known under the trade name Freon 21), chlorodifluoromethane (CHC1F2, also known under the trade name Freon 22), 1 , 1, 2-Trichloro-1, 2, 2-trifluoroethane (C2C3F3, also known under the trade name Freon 113), the fluid known under the trade name Flutec PP2, the fluid known under the trade name Flutec PP9, the fluid known under the trade name Dowtherm, the fluid known under the trade name Novec, and derivatives and mixtures of these fluids.
- flutec PP2 the
- the substrates 403 and 405 can have cavities of different depths. According to another embodiment variant, one of the two substrates 403 or 405 may not include any cavities.
- Figure 4 show two views (a) and (b) in section of an apparatus 500 that can be used for the manufacture of the system of Figure 3. Views (a) and (b) illustrate two different positions of the 500 device.
- the device 500 comprises a base 501 comprising an enclosure 503 covered by a cover 505.
- the dimensions of the enclosure 503 are large enough for it to be able to contain at least one system of the type of system 400 described in relation to FIG. 3.
- the cover 505 makes it possible to hermetically close the enclosure 503.
- the lid 505 is attached to base 501 by an attachment means 507.
- the attachment means 507 is an articulated arm adapted to cause the lid 505 to pivot with respect to the base 501.
- the views (a) and (b) illustrate two examples of the position of the lid 505. More particularly, view (a) of FIG. 4 illustrates the case where the lid 505 is closed, and view (b) illustrates the case where the lid 505 is open.
- the device 500 further comprises a support 509 placed in the enclosure 503, and a support 511 fixed to the cover 505.
- the supports 509 and 511 are adapted to receive all types of substrates, such as substrates of the type of the substrate 300 described in relation to FIG. 2.
- the supports 509 and 511 comprise attachment means, not shown in FIG. 4, making it possible to grip a substrate.
- These attachment means are, for example, mechanical attachment means such as hooks, an adhesive layer deposited on the surface of the support 509, 511, vacuum suction, etc.
- the lateral position and the position in height of the supports 509 and 511, relative to, respectively, the enclosure 503 and the cover 505, are adjustable by means not shown in FIG. 4.
- the supports 509 and 511 are also suitable for applying pressure, for example with a force less than or equal to 2 kN.
- the device 500 further comprises a device 513 (DEGAS) adapted to create a vacuum in the enclosure 503 once the lid 505 is in the closed position (view (a)).
- the device 513 is connected to the enclosure by a duct 515 formed in the base 501.
- the device 513 is a vacuum pump, for example, associated with a cold trap.
- line 515 can be connected to device 513 via a sealed valve.
- conduit 515 can be connected to one or more other gas transmission and/or treatment devices.
- the device 500 further comprises heating means, not shown in Figure 4, suitable for performing thermal annealing in the enclosure 503.
- Figure 5 is a sectional view illustrating the placement of the two substrates 403 and 405 on the supports 509 and 511 of the device 500 described in relation to Figure 4.
- the cover 505 is placed in the open position described in relation to the view (b) of Figure 4.
- the substrate 403 is positioned on the support 509. More particularly, the lower face 523 of the substrate 403 is placed against the support 509. The substrate 403 is held against the support 509 by means of the attachment means of the support 509. Similarly, the substrate 405 is positioned on the support 511, and more particularly, its lower face 525 is placed against the support 511. The substrate 405 is held against the support 511 by means of the hooking means of the support 511.
- Figure 6 is a block diagram illustrating an embodiment of a filling and bonding process leading to the formation of the system 400 of Figure 3.
- the system 400 consists of two substrates 403 and 405 of the type of the substrate 300 described in relation to FIG. 2.
- the apparatus 500 described in connection with Figures 4 and 5 is used.
- the substrates 403 and 405 are positioned on the supports 509 and
- the cover 505 of the device 500 is open.
- the substrate 403 is fixed on the support 509 and the substrate 405 is fixed on the support 511.
- the lateral and height positions of the supports 509 and 511 are modified to align the substrates 403 and 405.
- the cover 505 of the device 500 is closed. so as to position the supports 509 and 511 parallel to each other, and facing each other.
- This position of apparatus 500 is described in connection with view (a) of Figure 4.
- Substrates 403 and 405 are considered aligned once the cavity openings of substrates 403 and 405 are aligned with each other. others to obtain a structure of the type of the system 400 described in relation to FIG. 4.
- the substrates 403 and 405 are only aligned and are not brought into contact.
- the substrates 403 and 405 are degassed, for example hot degassing.
- Degassing the substrates 403 and 405 makes it possible to remove gaseous chemical species that can be absorbed by the material of the substrates 403 and 405. These chemical species could make the bonding of the two substrates 403 and 405 less effective.
- the lid 505 hermetically closes the enclosure 503 of the device 500.
- the device 513 suitable for creating a vacuum in the enclosure 503 and the heating means of the enclosure 503 are started. Indeed, a degassing of this type is carried out at high temperature, for example at a temperature between 100 and 200°C.
- a first method of filling consists of opening the lid 505 of the device 500, then unitary or common filling of the cavities with a volume of cooling fluid greater than the volume of cooling fluid necessary for the operation of the chamber. steamed.
- a unitary filling of the cavities can be achieved by using a filling device such as a syringe or a micro-syringe whose dimensions are adapted to the dimensions of the cavities.
- Common filling of the cavities can be achieved by using a filling device consisting, for example, of several syringes or micro-syringes arranged in parallel. In this process, the cooling fluid is introduced into its liquid phase after having been degassed.
- a second filling method that can be used is similar to the first method, but differs therefrom in that the cooling fluid is placed in the cavities in its solid phase after having been previously purified and degassed.
- a third filling method that can be used is similar to the first and second methods, but differs therefrom in that the cooling fluid is placed in the cavities in the form of a hydrogel after having been previously purified and degassed.
- a hydrogel is a gel in which water is used as a swelling agent, a gel being a network of solid elements diluted in a solvent.
- the substrates 403 and 405 are brought close to each other without being brought into contact.
- the position in height of the supports 509 and 511 of the device is modified. More particularly, the substrates 403 and 405 are arranged as close as possible according to the adjustment of the supports 509 and 511.
- the enclosure 503 of the device 500 is degassed. For this, the cover 505 hermetically closes the enclosure 503, and the gases present are evacuated via the conduit 515 by the device 513.
- the substrates having been positioned as close as possible to each other, the fluid coolant placed in their cavity cannot evaporate completely.
- a reservoir comprising the cooling fluid is placed in the enclosure 503, for example during the filling step of step 607, to make it possible to saturate the atmosphere of the enclosure with the cooling fluid. In this case, it is not necessary to create a vacuum in the enclosure 503.
- the substrates 403 and 405 are brought into contact by adjusting the position in height of the supports 509 and 511.
- the substrates 403 and 405 can be, initially, spaced apart by a small distance, for example order of 1 mm, then brought into contact quickly.
- a call for air towards the outside of the cavities makes it possible to eliminate the last residual gases trapped in the cavities.
- the substrates 403 and 405 are glued together to form the system 400 described in relation to FIG. 3.
- the substrates 403 and 405 are mechanically pressed together.
- annealing is carried out in enclosure 503.
- the use of annealing during bonding makes it possible to consolidate the bond between the two substrates 403, 405 by forming covalent bonds between the chemical elements of the materials.
- the pressure force applied to the two substrates and the annealing temperature are to be determined according to the material of the substrates 403 and 405 and the nature of the cooling fluid 407 used. According to an example, when the substrates 403 and 405 are made of silicon and the cooling fluid is water:
- the pressure force applied to the two substrates 403 and 405 is less than 2 kN, for example between 0.5 and 2 kN;
- the annealing is carried out at a temperature between 175 and 400°C, for example 200°C.
- FIG. 7 presents in more detail an embodiment of a bonding of the Gold-Gold (Au-Au) type used to bond the substrates 403 and 405.
- gluing process is finished, and the manufacturing process of the system 400 is finished.
- the steam chambers 401 of the system can be individualized, for example by sawing.
- An advantage of the mode of implementation described in relation to FIG. 6 is that it makes it possible to form vapor chambers directly filled with cooling fluid, hermetically closed and without a fragile zone due to an external filling process, such as , for example, a filling made by forming an access hole to the cavity.
- Another advantage of the process described here is that it makes it possible to form a strong bond between the two substrates, since it achieves a bonding implementing, simultaneously, an annealing and a pressing of the substrates one against the other. other.
- Figure 7 shows, schematically, two views (a), (b), (c), and (d) in section illustrating steps of implementation of a bonding process of the Gold-Gold (Au-Au) type of two substrates 701 and 702.
- a bonding of the gold-gold (Au-Au) type is generally used to bond two faces of two substrates, for example silicon semiconductor substrates.
- the substrates 701 and 702 considered here are of the same type as the substrates 403 and 405 described in relation to FIG. 3, and more particularly made of the same material as the substrates 403 and 405.
- the substrate 701 comprises a cavity 703 formed from its upper face 704. No cavity is formed in the substrate 702, one of the faces 705 of which is intended to be glued to the upper face 704 of substrate 701, so as to close cavity 703.
- a cavity may be present in substrate 702.
- the view (a) represents a step of deoxidation of the substrate 701.
- the substrate 701 is placed in the presence of a deoxidation solution, for example a solution of hydrogen fluoride (HF).
- a deoxidation solution for example a solution of hydrogen fluoride (HF).
- View (a) further represents a step of depositing a bonding layer 707 on the upper face 704 of the substrate 701.
- the bonding layer 707 is, for example, a titanium layer deposited by evaporation.
- the tie layer 707 has a thickness of between 1 and 10 nm, for example of the order of 5 nm.
- View (a) also shows a step of depositing a layer of gold (Au) 709 by evaporation.
- the layer of gold 709 has a thickness comprised between 10 and 20 nm, for example of the order of 15 nm.
- the thicknesses of layers 707 and 709 are not shown to scale in Figure 7.
- the steps shown in view (a) are, in parallel, also applied to the substrate 702, and more particularly its face 705. The application of these steps to the substrate 702 is not shown in FIG. 7.
- the view (b) represents a step of filling the cavity 703 of the substrate 701 with a filling fluid 711.
- the filling fluid 711 is for example a cooling fluid of the type of the cooling fluid 407 described in relation with Figure 3.
- the view (b) also represents a step of positioning the substrate 702 on the substrate 701.
- the substrate 702 is positioned on the substrate 701 so as to have their faces 704 and 705 facing each other, and more particularly the layers of gold that cover them facing each other.
- the substrates 701 and 702 are separated by removable spacers 713 and are therefore not in direct contact.
- the spacers 713 are razor blades, having a thickness of the order of 100 ⁇ m.
- the view (c) represents a vacuum step of the assembly composed of the substrates 701 and 702 so as to evacuate the last non-condensable gases present in the cavity 703.
- the substrate 702 being made of a relatively flexible material, like silicon, it bends. According to one example, during this step under vacuum the temperature is always equal to the ambient temperature.
- View (c) also represents a step of applying a vertical force, symbolized by the arrow F5 in view (c), allowing the layers of gold deposited on the faces 704 and 705 of the substrates 701 and 702 to come into contact at certain points. Spacers 713 are still retained. This step corresponds in part to the implementation of step 615 described in relation to FIG. 6.
- View (d) represents a step for finalizing the bonding, the bonding having started to operate at the level of the application of the force F5, it propagates to the lateral ends of the substrates 701 and 702 and the spacers are removed, for example manually. A rest step is then implemented before the implementation of a final anneal. Substrates 701 and 702 are hermetically bonded. This step corresponds in part to the implementation of step 615 described in relation to FIG. 6.
- FIG. 8 represents a very schematic sectional view of a general example of a compartment 800 which can be hermetically or semi-hermetically sealed in the manner described above.
- the compartment 800 is, like the steam chambers 401 described in relation to FIG. 3, formed from two plates 801 and 802 glued hermetically or semi-hermetically to one another.
- a cavity 803 is formed from a face of at least one of the two plates 801 or 802. In FIG. 8, the two plates have cavities 803 brought face to face during the bonding process.
- the plates 801 and 802 are semiconductor substrates, for example made of silicon, or glass substrates.
- FIG. 9 represents a schematic perspective view of a variant 900 of the compartment 800 in which the cavities 803 have a porous membrane as their bottom 901 allowing an exchange between the encapsulated fluid and the external environment.
- Such a compartment 900 can be used to implement a medical or paramedical device, such as a bio-capsule.
- FIG. 10 represents a very schematic sectional view of a battery 1000 that can be obtained using the methods of FIGS. 6 and 7.
- battery 1000 is a microbattery.
- the battery 1000 is formed from two substrates 1001 and 1002.
- the substrate 1001 two twin cavities 1003 and 1004 are formed connected by a trench 1005.
- the substrate 1002 is bonded to the substrate 1001 so as to close the cavities 1003 and 1004 and trench 1005.
- cavity 1003 is the anode of battery 1000
- cavity 1004 is the cathode of battery 1000.
- the cavity 1003 is filled by:
- the third layer 1008 overflows from the cavity 1003, into the trench 1005 and into the cavity 1004.
- the cavity 1004 is filled by:
- the bonding of the substrates 1001 and 1002, and the filling of the cavities 1003 and 1004 can be carried out by a method similar to those described in relation to FIGS. 6 and 7.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Micromachines (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2111712A FR3128822B1 (fr) | 2021-11-04 | 2021-11-04 | Chambre à vapeur |
| PCT/EP2022/079721 WO2023078728A1 (fr) | 2021-11-04 | 2022-10-25 | Chambre à vapeur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4427265A1 true EP4427265A1 (fr) | 2024-09-11 |
Family
ID=80449200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22805882.2A Pending EP4427265A1 (fr) | 2021-11-04 | 2022-10-25 | Chambre à vapeur |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250197269A1 (fr) |
| EP (1) | EP4427265A1 (fr) |
| FR (1) | FR3128822B1 (fr) |
| WO (1) | WO2023078728A1 (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105210185A (zh) * | 2013-05-17 | 2015-12-30 | 富士通株式会社 | 半导体装置及其制造方法、以及电子设备 |
| US20150026981A1 (en) * | 2013-07-24 | 2015-01-29 | Asia Vital Components Co., Ltd. | Manufacturing mehtod of vapor chamber structure |
| JP6920115B2 (ja) * | 2017-07-04 | 2021-08-18 | 新光電気工業株式会社 | ヒートパイプ及びヒートパイプの製造方法 |
-
2021
- 2021-11-04 FR FR2111712A patent/FR3128822B1/fr active Active
-
2022
- 2022-10-25 EP EP22805882.2A patent/EP4427265A1/fr active Pending
- 2022-10-25 WO PCT/EP2022/079721 patent/WO2023078728A1/fr not_active Ceased
- 2022-10-25 US US18/706,343 patent/US20250197269A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3128822A1 (fr) | 2023-05-05 |
| WO2023078728A1 (fr) | 2023-05-11 |
| US20250197269A1 (en) | 2025-06-19 |
| FR3128822B1 (fr) | 2025-01-03 |
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