WO1995015579A1 - Procede d'encapsulation de composants ou de modules electroniques et dispositfs encapsules par ledit procede - Google Patents
Procede d'encapsulation de composants ou de modules electroniques et dispositfs encapsules par ledit procede Download PDFInfo
- Publication number
- WO1995015579A1 WO1995015579A1 PCT/FR1994/001394 FR9401394W WO9515579A1 WO 1995015579 A1 WO1995015579 A1 WO 1995015579A1 FR 9401394 W FR9401394 W FR 9401394W WO 9515579 A1 WO9515579 A1 WO 9515579A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyurethane
- components
- electronic module
- polybutadiene
- electronic
- Prior art date
Links
Classifications
-
- 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
- H05K3/28—Applying non-metallic protective coatings
- H05K3/284—Applying non-metallic protective coatings for encapsulating mounted components
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/29—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the material, e.g. carbon
- H01L23/293—Organic, e.g. plastic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
- H01L23/3107—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed
- H01L23/3135—Double encapsulation or coating and encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48225—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
- H01L2224/48227—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/85—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a wire connector
- H01L2224/85909—Post-treatment of the connector or wire bonding area
- H01L2224/8592—Applying permanent coating, e.g. protective coating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01087—Francium [Fr]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0137—Materials
- H05K2201/0179—Thin film deposited insulating layer, e.g. inorganic layer for printed capacitor
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
- H05K2201/09872—Insulating conformal coating
-
- 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
- H05K2203/13—Moulding and encapsulation; Deposition techniques; Protective layers
- H05K2203/1305—Moulding and encapsulation
- H05K2203/1316—Moulded encapsulation of mounted components
-
- 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
- H05K2203/13—Moulding and encapsulation; Deposition techniques; Protective layers
- H05K2203/1305—Moulding and encapsulation
- H05K2203/1322—Encapsulation comprising more than one layer
Definitions
- the present invention relates to a method of encapsulating electronic components or modules, in particular electronic cards and to electronic components or modules encapsulated by said method.
- Electronic modules play an essential role in the proper functioning of an ever-increasing number of devices. Normal or particular use of these devices subjects these electronic modules to more or less severe constraints. The severity and the type of constraints depend mainly on the device considered as well as the use for which it is intended.
- the patent published under the number FR-2 673 065 describes a thermal insulation envelope for electronic means which comprises a core having a high specific heat to absorb the supply of external heat, and thus limit the rise in temperature of the electronic means.
- the protection according to the present invention can make it difficult or prevent the identification of the electronic components used and / or the reading of the data or the programs contained in the permanent memories of a protected electronic module.
- the choice of polyurethane, in particular of polyurethane polybutadiene hydroxyl was made according to the properties specific to this base material which can be used in the fields of protection envisaged by the invention, namely against chemical, mechanical and / or thermal, but without being able on its own to provide sufficient protection with respect to all of these constraints.
- the encapsulation process is characterized in that it consists in depositing successively on the components or the electronic module:
- polyurethane in particular hydroxyl polybutadiene polyurethane
- outer layer made of a polyvinylidene chloride copolymer
- Such a coating makes it possible to obtain overall protection of the components or of the electronic module, in particular against high humidity, salt spray, chemical impurities, shocks, vibrations and accelerations.
- the encapsulation process is characterized in that it consists in depositing successively on the components or the electronic module: an inner layer based on polyurethane, in particular hydroxyl polybutadiene polyurethane, an intermediate layer constituted by a polyvinylidene chloride copolymer, and an outer layer based on polyurethane, in particular hydroxyl polybutadiene polyurethane.
- Such a coating makes it possible to obtain overall protection of the components or of the electronic module, in particular against high humidity, high temperature, salt spray and chemical impurities.
- the encapsulation process is characterized in that it consists in depositing successively on the components or the electronic module: an internal layer of parylene, in particular pyralene C, an intermediate layer based on polyurethane, in particular hydroxyl polybutadiene polyurethane, and an outer layer made of a polyvinylidene chloride copolymer.
- Such a coating makes it possible to obtain overall protection which in particular improves the resistance to thermal shocks.
- the encapsulation process is characterized in that it consists in depositing on the components or the electronic module, these components or this module comprising bare chips with integrated circuits: an internal layer of parylene, in particular of pyralene C, a drop of silicone gel deposited locally on each bare chip, and - an outer layer based on polyurethane, in particular hydroxyl polybutadiene polyurethane.
- Such a coating makes it possible to obtain overall protection of the components or of the electronic module, in particular against a rise in temperature, thermal cycles, shocks, vibrations and accelerations.
- all the methods described above may include a preliminary step which consists in cleaning the components or the electronic module and the support before depositing the layers, this cleaning operation being carried out by plasma, for example.
- the choice of materials, the thickness of the various layers and the order in which these layers are deposited makes it possible to provide the desired protection against the stresses likely to be undergone by the electronic components or modules.
- the use of organic layers makes it possible to substantially reduce the cost price of the process according to the present invention.
- the invention also relates to an electronic component or module, characterized in that it comprises a coating produced by the encapsulation method according to the invention.
- FIG. 1 is a schematic side view of an electronic module of known type
- FIG. 2 is a schematic sectional view of the module of Figure 1 encapsulated according to the present invention
- FIG. 3 is a schematic perspective view of an electronic component of known type
- Figure 4 is a schematic sectional view of the component of Figure 3 encapsulated according to the present invention.
- FIG. 5 is an explanatory sectional view of the stresses suffered by components by differential expansion, for example.
- an electronic card of known type comprising, mounted on a printed circuit board 1 of the epoxy glass type for example, components 2 previously encapsulated according to conventional technologies and comprising for example two rows of connection pins 3 (DIL in Anglo-Saxon terminology), components 4 mounted on the surface (Surface Mounted Component or CMS in Anglo-Saxon terminology), a bare chip 5 reported on the surface (Chip-on-Board or COB in Anglo-Saxon terminology) connected by connection wires 3 ′, as well as a connector 6.
- the card 1 can also carry discrete components, in particular passive or of medium power (not shown). All these types of components and the modules comprising such components are part of the components and electronic modules targeted by the invention.
- connection terminals 8 The component 7 can be a bare electronic chip or, as shown, a chip previously encapsulated in a low-cost plastic case that does not provide sufficient protection to allow the use of the component in harsh environment.
- the Applicant has discovered that there is no material capable of providing all of the desired protections for electronic components or an electronic module on its own, so that it at least two protective layers must be provided in materials which are compatible with each other in order to provide the desired protection in combination, these materials preferably being of the organic type.
- certain layers can provide additional protection against nuisances caused by the presence of one or more other layers.
- an intermediate layer could form a barrier against moisture capable of being released by an upper protective layer.
- the various layers of the encapsulation and, in particular the internal layer or layers must have a high dielectric strength and / or a permittivity and a dielectric loss factor as low as possible.
- FIG. 5 two examples of failure liable to be caused by employment have been illustrated. of materials with a coefficient of thermal expansion
- a bare chip 5 having a length L is bonded to a substrate 9 using a resin having a thickness X a .
- K is a constant
- ⁇ s and ⁇ s ⁇ are the CTE of the substrate 9 and of the chip 5 (typically made of silicon),
- ⁇ T corresponds to the range of temperatures considered
- E a and E s are the Young's modules of the resin 10 and of the substrate 9.
- a differential expansion between the substrate 9 and a resin 11 forming a layer of the encapsulation box can generate a stress such as a force represented by the arrow 12 and from which can result a tearing of a connection electrode 3 ' .
- the protection according to the present invention will consist of an encapsulation illustrated in FIGS. 2 and 4 comprising at least two layers of organic protection.
- the types and degrees of protection sought are determined according to the environments in which the components or the electronic module must be able to be stored and / or must be able to operate.
- electronic components or modules can be protected against chemical attack and the presence of water. Such attacks risk, in the long term, destroying the connections, in particular aluminum, or causing short circuits.
- we will minimize the presence of oxygen as well as corrosive ions, in particular Na + , K + , or halogen ions, for example, of fluoride or chloride type, by deposition an effective barrier which is not likely to release such ions itself.
- the maximum temperature that the components or the electronic module can withstand without damage during storage is determined, as well as the maximum temperature for which their operation is not disturbed;
- the selection of the various constituent layers of the protective coating according to the invention has led the Applicant to make a choice on a base material consisting of polyurethane, in particular polyurethane polybutadiene hydroxyl.
- this material in particular forms a barrier to humidity, salt spray, chemical impurities and temperature, and absorbs shock, vibration and strong acceleration, that is to say that it has properties compatible with overall protection against chemical, mechanical and thermal constraints.
- polyurethane polybutadiene hydroxyl constitutes a barrier, in particular to Na + , Cl ions, to oxygen and to other foreign bodies in solid or gaseous form.
- this encapsulation process which provides for a coating based on the presence of at least one layer of polyurethane polybutadiene hydroxyl, it is advantageous to deposit at least one other layer and thus define several types of coating capable of complementing and reinforcing the properties of the polyurethane polybutadiene hydroxyl with respect to chemical, mechanical and / or thermal stresses.
- the encapsulation process consists of successively depositing on the components or the electronic module: - an internal layer based on polyurethane, in particular polyurethane polybutadiene hydroxyl, and an external layer constituted by a copolymer of polyvinylidene chloride .
- these two rigid organic layers are each deposited over a thickness of the order of 0.1 to
- Such a coating makes it possible to obtain overall protection of the components or of the electronic module, in particular against high humidity, salt spray, chemical impurities, shocks, vibrations and accelerations.
- the encapsulation process consists in depositing successively on the components or the electronic module: an internal layer 14 ′ based on polyurethane, in particular polyurethane polybutadiene hydroxyl,
- an intermediate layer 15 ′ consisting of a polyvinylidene chloride copolymer, and an external layer 18 ′ based on polyurethane, in particular hydroxyl polybutadiene polyurethane.
- These three rigid layers are each deposited over a thickness of the order of 0.1 to 3 mm.
- Such a coating makes it possible to obtain overall protection of the components or of the electronic module, in particular against high humidity, high temperature, salt spray and chemical impurities.
- a protective coating having at least the same properties as those of the first example but which has a reinforced structure against thermal shock.
- the encapsulation process consists in depositing successively on the components or the electronic module: an internal layer 14 'of parylene, in particular pyralene C, an intermediate layer 15' based on polyurethane, in particular polyurethane polybutadiene hydroxyl, and an outer layer 18 ′ consisting of a copolymer of polyvinylidene chloride.
- the internal parylene layer is deposited over a thickness of the order of 10 ⁇ m, and the layers intermediate and external are deposited on a thickness of 1 order of 0.1 to 3 mm.
- Such a coating makes it possible to obtain overall protection which in particular improves the resistance to thermal shocks.
- the encapsulation process consists in depositing on the components or the electronic module: an internal layer of parylene, in particular pyralene C, a drop of silicone gel deposited locally on each integrated circuit chip, and - a outer layer based on polyurethane, in particular hydroxyl polybutadiene polyurethane.
- the inner layer of parylene is deposited on a thickness of the order of 10 ⁇ m, and the outer layer is deposited on a thickness of the order of 0.1 to 3 mm.
- Such a coating makes it possible to obtain overall protection of the components, in particular of the bare chips, or of an electronic module comprising such chips, in particular against a rise in temperature, thermal cycles, shocks, vibrations and accelerations.
- a preliminary step can be provided which consists in cleaning the components or the electronic module and the support before depositing the layers, this cleaning operation being carried out by plasma, for example.
- the deposition of the parylene layer can be carried out advantageously by evaporation, the deposition of the hydroxylated polyurethane polybutadiene by spraying and the deposition of the polyvinylidene chloride copolymer by soaking or spraying.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95902812A EP0682809A1 (fr) | 1993-11-30 | 1994-11-30 | Procede d'encapsulation de composants ou de modules electroniques et dispositfs encapsules par ledit procede |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9314318A FR2713396B1 (fr) | 1993-11-30 | 1993-11-30 | Procédé d'encapsulation de composants ou de modules électroniques et composants ou modules électroniques encapsulés par ledit procédé. |
FR93/14318 | 1993-11-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995015579A1 true WO1995015579A1 (fr) | 1995-06-08 |
Family
ID=9453371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1994/001394 WO1995015579A1 (fr) | 1993-11-30 | 1994-11-30 | Procede d'encapsulation de composants ou de modules electroniques et dispositfs encapsules par ledit procede |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0682809A1 (fr) |
CA (1) | CA2154480A1 (fr) |
FR (1) | FR2713396B1 (fr) |
WO (1) | WO1995015579A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2740608A1 (fr) * | 1995-10-25 | 1997-04-30 | Giat Ind Sa | Procede pour deposer un revetement de protection sur les composants d'une carte electronique |
EP1084029A2 (fr) * | 1998-01-27 | 2001-03-21 | Richard L. Jacobs | Dispositifs electroniques ayant des parties thermodynamiques encapsulantes predominant sur des parties thermostatiques encapsulantes |
WO2018002368A1 (fr) * | 2016-06-30 | 2018-01-04 | Safran Electronics & Defense | Dispositif electronique ayant une banque integree de composants passifs |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2817397B1 (fr) * | 2000-11-24 | 2003-10-17 | Alstom | Procede pour augmenter la duree de vie d'un composant semi-conducteur de puissance et module electronique comportant un composant ainsi protege |
EP3404675A1 (fr) | 2017-05-15 | 2018-11-21 | EBG Elektronische Bauelemente GmbH | Résistance de puissance |
FR3114643B1 (fr) | 2020-09-25 | 2022-09-09 | Nexter Munitions | Fusee electronique pour projectile |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2347049A1 (de) * | 1973-08-16 | 1975-02-27 | Bbc Brown Boveri & Cie | Verfahren zum einkapseln von miniaturisierten schaltungen, insbesondere hybridschaltungen, und danach hergestellte eingekapselte miniaturisierte schaltungen |
US4173664A (en) * | 1978-01-20 | 1979-11-06 | Union Carbide Corporation | Parylene stabilization |
GB2089126A (en) * | 1980-12-10 | 1982-06-16 | Hitachi Ltd | Semiconductor device and process for producing the same |
DE3518335A1 (de) * | 1984-05-24 | 1985-11-28 | Mitsubishi Petrochemical Co., Ltd., Tokio/Tokyo | Elektromagnetisches abschirmmaterial |
JPS615583A (ja) * | 1984-06-20 | 1986-01-11 | Hitachi Ltd | 太陽電池モジユ−ル |
JPS6167247A (ja) * | 1984-09-10 | 1986-04-07 | Nec Corp | 混成集積回路 |
JPH02102567A (ja) * | 1988-10-12 | 1990-04-16 | Semiconductor Energy Lab Co Ltd | 電子装置作製方法 |
JPH02134838A (ja) * | 1988-11-16 | 1990-05-23 | Hitachi Ltd | 樹脂封止型半導体装置およびその製造方法およびそれに用いる中間層形成装置 |
JPH03104243A (ja) * | 1989-09-19 | 1991-05-01 | Fujitsu Ltd | 半導体装置の製造方法 |
DE9215889U1 (fr) * | 1991-11-22 | 1993-04-01 | Minnesota Mining And Manufacturing Co., Saint Paul, Minn., Us |
-
1993
- 1993-11-30 FR FR9314318A patent/FR2713396B1/fr not_active Expired - Fee Related
-
1994
- 1994-11-30 WO PCT/FR1994/001394 patent/WO1995015579A1/fr not_active Application Discontinuation
- 1994-11-30 EP EP95902812A patent/EP0682809A1/fr not_active Withdrawn
- 1994-11-30 CA CA002154480A patent/CA2154480A1/fr not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2347049A1 (de) * | 1973-08-16 | 1975-02-27 | Bbc Brown Boveri & Cie | Verfahren zum einkapseln von miniaturisierten schaltungen, insbesondere hybridschaltungen, und danach hergestellte eingekapselte miniaturisierte schaltungen |
US4173664A (en) * | 1978-01-20 | 1979-11-06 | Union Carbide Corporation | Parylene stabilization |
GB2089126A (en) * | 1980-12-10 | 1982-06-16 | Hitachi Ltd | Semiconductor device and process for producing the same |
DE3518335A1 (de) * | 1984-05-24 | 1985-11-28 | Mitsubishi Petrochemical Co., Ltd., Tokio/Tokyo | Elektromagnetisches abschirmmaterial |
JPS615583A (ja) * | 1984-06-20 | 1986-01-11 | Hitachi Ltd | 太陽電池モジユ−ル |
JPS6167247A (ja) * | 1984-09-10 | 1986-04-07 | Nec Corp | 混成集積回路 |
JPH02102567A (ja) * | 1988-10-12 | 1990-04-16 | Semiconductor Energy Lab Co Ltd | 電子装置作製方法 |
JPH02134838A (ja) * | 1988-11-16 | 1990-05-23 | Hitachi Ltd | 樹脂封止型半導体装置およびその製造方法およびそれに用いる中間層形成装置 |
JPH03104243A (ja) * | 1989-09-19 | 1991-05-01 | Fujitsu Ltd | 半導体装置の製造方法 |
DE9215889U1 (fr) * | 1991-11-22 | 1993-04-01 | Minnesota Mining And Manufacturing Co., Saint Paul, Minn., Us |
Non-Patent Citations (6)
Title |
---|
C. P. WONG, 39TH ELECTRONIC COMPONENTS CONF., 22 May 1989 (1989-05-22), THE WESTIN HOUSTON, TEXAS, pages 769 - 776 * |
PATENT ABSTRACTS OF JAPAN vol. 10, no. 141 (E - 406) 24 May 1986 (1986-05-24) * |
PATENT ABSTRACTS OF JAPAN vol. 10, no. 236 (E - 428) 15 August 1986 (1986-08-15) * |
PATENT ABSTRACTS OF JAPAN vol. 14, no. 312 (E - 948) 5 July 1990 (1990-07-05) * |
PATENT ABSTRACTS OF JAPAN vol. 14, no. 371 (E - 963) 10 August 1990 (1990-08-10) * |
PATENT ABSTRACTS OF JAPAN vol. 15, no. 295 (E - 1094) 26 July 1991 (1991-07-26) * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2740608A1 (fr) * | 1995-10-25 | 1997-04-30 | Giat Ind Sa | Procede pour deposer un revetement de protection sur les composants d'une carte electronique |
WO1997016055A1 (fr) * | 1995-10-25 | 1997-05-01 | Giat Industries | Procede pour deposer un revetement de protection sur les composants d'une carte electronique |
US5897913A (en) * | 1995-10-25 | 1999-04-27 | Giat Industries | Method for applying a protective coating to the components of a printed circuit board |
EP1084029A2 (fr) * | 1998-01-27 | 2001-03-21 | Richard L. Jacobs | Dispositifs electroniques ayant des parties thermodynamiques encapsulantes predominant sur des parties thermostatiques encapsulantes |
EP1084029A4 (fr) * | 1998-01-27 | 2003-05-14 | Richard L Jacobs | Dispositifs electroniques ayant des parties thermodynamiques encapsulantes predominant sur des parties thermostatiques encapsulantes |
WO2018002368A1 (fr) * | 2016-06-30 | 2018-01-04 | Safran Electronics & Defense | Dispositif electronique ayant une banque integree de composants passifs |
FR3053528A1 (fr) * | 2016-06-30 | 2018-01-05 | Safran Electronics & Defense | Dispositif electronique ayant une banque integree de composants passifs |
Also Published As
Publication number | Publication date |
---|---|
CA2154480A1 (fr) | 1995-06-08 |
FR2713396B1 (fr) | 1996-02-09 |
FR2713396A1 (fr) | 1995-06-09 |
EP0682809A1 (fr) | 1995-11-22 |
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