GB2003068A

GB2003068A – Eutectic die attachment method for integrated circuits
– Google Patents

GB2003068A – Eutectic die attachment method for integrated circuits
– Google Patents
Eutectic die attachment method for integrated circuits

Info

Publication number
GB2003068A

GB2003068A
GB7830557A
GB7830557A
GB2003068A
GB 2003068 A
GB2003068 A
GB 2003068A
GB 7830557 A
GB7830557 A
GB 7830557A
GB 7830557 A
GB7830557 A
GB 7830557A
GB 2003068 A
GB2003068 A
GB 2003068A
Authority
GB
United Kingdom
Prior art keywords
integrated circuits
attachment method
die attachment
eutectic die
eutectic
Prior art date
1977-08-26
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.)

Granted

Application number
GB7830557A
Other versions

GB2003068B
(en

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Raytheon Co

Original Assignee
Hughes Aircraft Co
Priority date (The priority date 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 date listed.)
1977-08-26
Filing date
1978-07-20
Publication date
1979-03-07

1978-07-20
Application filed by Hughes Aircraft Co
filed
Critical
Hughes Aircraft Co

1979-03-07
Publication of GB2003068A
publication
Critical
patent/GB2003068A/en

1982-04-28
Application granted
granted
Critical

1982-04-28
Publication of GB2003068B
publication
Critical
patent/GB2003068B/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

H—ELECTRICITY

H01—ELECTRIC ELEMENTS

H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10

H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto

H01L24/80—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

H01L24/83—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 layer connector

H—ELECTRICITY

H01—ELECTRIC ELEMENTS

H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10

H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof

H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof

H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer

H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 – H01L21/326, e.g. sealing of a cap to a base of a container

H01L21/52—Mounting semiconductor bodies in containers

H—ELECTRICITY

H01—ELECTRIC ELEMENTS

H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10

H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof

H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof

H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate

H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices

H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components

H01L21/84—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being other than a semiconductor body, e.g. being an insulating body

H01L21/86—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being other than a semiconductor body, e.g. being an insulating body the insulating body being sapphire, e.g. silicon on sapphire structure, i.e. SOS

H—ELECTRICITY

H01—ELECTRIC ELEMENTS

H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10

H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto

H01L24/01—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

H01L24/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto

H01L24/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process

H01L24/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector

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

H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto

H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process

H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector

H01L2224/29001—Core members of the layer connector

H01L2224/29099—Material

H01L2224/2919—Material with a principal constituent of the material being a polymer, e.g. polyester, phenolic based polymer, epoxy

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

H01L2224/83—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 layer connector

H01L2224/831—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 layer connector the layer connector being supplied to the parts to be connected in the bonding apparatus

H01L2224/83101—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 layer connector the layer connector being supplied to the parts to be connected in the bonding apparatus as prepeg comprising a layer connector, e.g. provided in an insulating plate member

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

H01L2224/83—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 layer connector

H01L2224/8319—Arrangement of the layer connectors prior to mounting

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

H01L2224/83—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 layer connector

H01L2224/838—Bonding techniques

H01L2224/83801—Soldering or alloying

H01L2224/83805—Soldering or alloying involving forming a eutectic alloy at the bonding interface

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

H01L2224/83—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 layer connector

H01L2224/838—Bonding techniques

H01L2224/8385—Bonding techniques using a polymer adhesive, e.g. an adhesive based on silicone, epoxy, polyimide, polyester

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

H01L2224/852—Applying energy for connecting

H01L2224/85201—Compression bonding

H01L2224/85205—Ultrasonic bonding

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

H01L2924/0001—Technical content checked by a classifier

H01L2924/00011—Not relevant to the scope of the group, the symbol of which is combined with the symbol of this group

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

H01L2924/01005—Boron [B]

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

H01L2924/01006—Carbon [C]

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

H01L2924/01015—Phosphorus [P]

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

H01L2924/01023—Vanadium [V]

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

H01L2924/01033—Arsenic [As]

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

H01L2924/01079—Gold [Au]

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

H01L2924/013—Alloys

H01L2924/0132—Binary Alloys

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

H01L2924/013—Alloys

H01L2924/0132—Binary Alloys

H01L2924/01322—Eutectic Alloys, i.e. obtained by a liquid transforming into two solid phases

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

H01L2924/06—Polymers

H01L2924/0665—Epoxy resin

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

H01L2924/06—Polymers

H01L2924/078—Adhesive characteristics other than chemical

H01L2924/07802—Adhesive characteristics other than chemical not being an ohmic electrical conductor

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

H01L2924/10—Details of semiconductor or other solid state devices to be connected

H01L2924/11—Device type

H01L2924/12—Passive devices, e.g. 2 terminal devices

H01L2924/1204—Optical Diode

H01L2924/12042—LASER

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

H01L2924/10—Details of semiconductor or other solid state devices to be connected

H01L2924/11—Device type

H01L2924/14—Integrated circuits

GB7830557A
1977-08-26
1978-07-20
Eutectic die attachment method for integrated circuits

Expired

GB2003068B
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US05/828,124

US4181249A
(en)

1977-08-26
1977-08-26
Eutectic die attachment method for integrated circuits

Publications (2)

Publication Number
Publication Date

GB2003068A
true

GB2003068A
(en)

1979-03-07

GB2003068B

GB2003068B
(en)

1982-04-28

Family
ID=25250978
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB7830557A
Expired

GB2003068B
(en)

1977-08-26
1978-07-20
Eutectic die attachment method for integrated circuits

Country Status (4)

Country
Link

US
(1)

US4181249A
(en)

JP
(1)

JPS5447480A
(en)

FR
(1)

FR2401523A1
(en)

GB
(1)

GB2003068B
(en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4293587A
(en)

*

1978-11-09
1981-10-06
Zilog, Inc.
Low resistance backside preparation for semiconductor integrated circuit chips

US4457976A
(en)

*

1983-03-28
1984-07-03
Rca Corporation
Method for mounting a sapphire chip on a metal base and article produced thereby

US4752180A
(en)

*

1985-02-14
1988-06-21
Kabushiki Kaisha Toshiba
Method and apparatus for handling semiconductor wafers

US4737236A
(en)

*

1986-09-08
1988-04-12
M/A-Com, Inc.
Method of making microwave integrated circuits

DE4107660C2
(en)

*

1991-03-09
1995-05-04
Bosch Gmbh Robert

Process for mounting silicon wafers on metallic mounting surfaces

KR20010090720A
(en)

1998-09-03
2001-10-19
추후제출
Proportional micromechanical device

US7011378B2
(en)

*

1998-09-03
2006-03-14
Ge Novasensor, Inc.
Proportional micromechanical valve

US6523560B1
(en)

1998-09-03
2003-02-25
General Electric Corporation
Microvalve with pressure equalization

US6197619B1
(en)

1999-01-28
2001-03-06
International Business Machines Corporation
Method for reinforcing a semiconductor device to prevent cracking

US6845962B1
(en)

*

2000-03-22
2005-01-25
Kelsey-Hayes Company
Thermally actuated microvalve device

US6505811B1
(en)

2000-06-27
2003-01-14
Kelsey-Hayes Company
High-pressure fluid control valve assembly having a microvalve device attached to fluid distributing substrate

US8011388B2
(en)

*

2003-11-24
2011-09-06
Microstaq, INC
Thermally actuated microvalve with multiple fluid ports

US20070251586A1
(en)

*

2003-11-24
2007-11-01
Fuller Edward N
Electro-pneumatic control valve with microvalve pilot

JP2007512489A
(en)

*

2003-11-24
2007-05-17
アルーマナ、マイクロウ、エルエルシー

Microvalve device suitable for control of variable displacement compressor

JP2007525630A
(en)

*

2004-02-27
2007-09-06
アルーマナ、マイクロウ、エルエルシー

Hybrid micro / macro plate valve

EP1732653A2
(en)

*

2004-03-05
2006-12-20
Alumina Micro LLC
Selective bonding for forming a microvalve

US7156365B2
(en)

*

2004-07-27
2007-01-02
Kelsey-Hayes Company
Method of controlling microvalve actuator

JP2008527244A
(en)

*

2005-01-14
2008-07-24
アルーマナ、マイクロウ、エルエルシー

System and method for controlling a variable displacement compressor

CN101617155B
(en)

2006-12-15
2012-03-21
麦克罗斯塔克公司
Microvalve device

WO2008121369A1
(en)

2007-03-30
2008-10-09
Microstaq, Inc.
Pilot operated micro spool valve

CN101668973B
(en)

2007-03-31
2013-03-13
盾安美斯泰克公司(美国)
Pilot operated spool valve

US8662468B2
(en)

*

2008-08-09
2014-03-04
Dunan Microstaq, Inc.
Microvalve device

US8113482B2
(en)

*

2008-08-12
2012-02-14
DunAn Microstaq
Microvalve device with improved fluid routing

WO2010065804A2
(en)

2008-12-06
2010-06-10
Microstaq, Inc.
Fluid flow control assembly

WO2010117874A2
(en)

2009-04-05
2010-10-14
Microstaq, Inc.
Method and structure for optimizing heat exchanger performance

CN102575782B
(en)

2009-08-17
2014-04-09
盾安美斯泰克股份有限公司
Micromachined device and control method

CN102812538B
(en)

2010-01-28
2015-05-13
盾安美斯泰克股份有限公司
Process for reconditioning semiconductor surface to facilitate bonding

WO2011094300A2
(en)

2010-01-28
2011-08-04
Microstaq, Inc.
Process and structure for high temperature selective fusion bonding

US8996141B1
(en)

2010-08-26
2015-03-31
Dunan Microstaq, Inc.
Adaptive predictive functional controller

US8925793B2
(en)

2012-01-05
2015-01-06
Dunan Microstaq, Inc.
Method for making a solder joint

US9140613B2
(en)

2012-03-16
2015-09-22
Zhejiang Dunan Hetian Metal Co., Ltd.
Superheat sensor

WO2014150643A1
(en)

*

2013-03-15
2014-09-25
Materion Corporation
Gold containing die bond sheet preform spot-welded to a semiconductor bond site on a semiconductor package and corresponding manufacturing method

US9188375B2
(en)

2013-12-04
2015-11-17
Zhejiang Dunan Hetian Metal Co., Ltd.
Control element and check valve assembly

Family Cites Families (13)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3235943A
(en)

*

1962-01-04
1966-02-22
Corning Glass Works
Method of making a flux free bonded article

US3432913A
(en)

*

1962-12-26
1969-03-18
Philips Corp
Method of joining a semi-conductor to a base

US3316628A
(en)

*

1964-12-30
1967-05-02
United Aircraft Corp
Bonding of semiconductor devices to substrates

DE2108520A1
(en)

*

1970-02-24
1971-09-09
Owens Illinois Inc

High temperature resistant gold-containing composition and its use in the manufacture of electronic devices

US3680196A
(en)

*

1970-05-08
1972-08-01
Us Navy
Process for bonding chip devices to hybrid circuitry

GB1389542A
(en)

*

1971-06-17
1975-04-03
Mullard Ltd
Methods of securing a semiconductor body to a support

US3811182A
(en)

*

1972-03-31
1974-05-21
Ibm
Object handling fixture, system, and process

US3921885A
(en)

*

1973-06-28
1975-11-25
Rca Corp
Method of bonding two bodies together

GB1449212A
(en)

*

1973-11-24
1976-09-15
Ferranti Ltd
Manufacture of supports for semiconductor devices

US3986251A
(en)

*

1974-10-03
1976-10-19
Motorola, Inc.
Germanium doped light emitting diode bonding process

JPS5227383A
(en)

*

1975-08-27
1977-03-01
Hitachi Ltd
Semiconductor device and its manufacturing process

US4018374A
(en)

*

1976-06-01
1977-04-19
Ford Aerospace & Communications Corporation
Method for forming a bond between sapphire and glass

US4078711A
(en)

*

1977-04-14
1978-03-14
Rockwell International Corporation
Metallurgical method for die attaching silicon on sapphire devices to obtain heat resistant bond

1977

1977-08-26
US
US05/828,124
patent/US4181249A/en
not_active
Expired – Lifetime

1978

1978-07-20
GB
GB7830557A
patent/GB2003068B/en
not_active
Expired

1978-07-27
FR
FR7822245A
patent/FR2401523A1/en
active
Granted

1978-08-25
JP
JP10373478A
patent/JPS5447480A/en
active
Pending

Also Published As

Publication number
Publication date

US4181249A
(en)

1980-01-01

JPS5447480A
(en)

1979-04-14

FR2401523A1
(en)

1979-03-23

FR2401523B1
(en)

1983-11-25

GB2003068B
(en)

1982-04-28

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JPS5442983A
(en)

1979-04-05

Semiconductor ic

JPS5415651A
(en)

1979-02-05

Semiconductor ic

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1987-03-11
PCNP
Patent ceased through non-payment of renewal fee

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