KR0184588B1 - 일체식 회로 패키지용 다층 리드프레임 - Google Patents
일체식 회로 패키지용 다층 리드프레임 Download PDFInfo
- Publication number
- KR0184588B1 KR0184588B1 KR1019920700572A KR920700572A KR0184588B1 KR 0184588 B1 KR0184588 B1 KR 0184588B1 KR 1019920700572 A KR1019920700572 A KR 1019920700572A KR 920700572 A KR920700572 A KR 920700572A KR 0184588 B1 KR0184588 B1 KR 0184588B1
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- South Korea
- Prior art keywords
- metal
- layers
- thin
- layer
- package
- Prior art date
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 145
- 239000002184 metal Substances 0.000 claims abstract description 145
- 239000002131 composite material Substances 0.000 claims abstract description 43
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 26
- 229910052802 copper Inorganic materials 0.000 claims description 26
- 239000010949 copper Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 12
- 229910045601 alloy Inorganic materials 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000010409 thin film Substances 0.000 claims description 8
- 239000011888 foil Substances 0.000 claims description 5
- 239000002952 polymeric resin Substances 0.000 claims description 4
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- JVPLOXQKFGYFMN-UHFFFAOYSA-N gold tin Chemical compound [Sn].[Au] JVPLOXQKFGYFMN-UHFFFAOYSA-N 0.000 claims description 3
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 claims description 3
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000004634 thermosetting polymer Substances 0.000 claims description 3
- 239000006023 eutectic alloy Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000005394 sealing glass Substances 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005476 soldering Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 238000005530 etching Methods 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 230000004807 localization Effects 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000003518 caustics Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 229920006332 epoxy adhesive Polymers 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical class [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- KGWWEXORQXHJJQ-UHFFFAOYSA-N [Fe].[Co].[Ni] Chemical compound [Fe].[Co].[Ni] KGWWEXORQXHJJQ-UHFFFAOYSA-N 0.000 description 1
- OFLYIWITHZJFLS-UHFFFAOYSA-N [Si].[Au] Chemical compound [Si].[Au] OFLYIWITHZJFLS-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- LDVVMCZRFWMZSG-UHFFFAOYSA-N captan Chemical compound C1C=CCC2C(=O)N(SC(Cl)(Cl)Cl)C(=O)C21 LDVVMCZRFWMZSG-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- -1 copper Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910000833 kovar Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000003701 mechanical milling Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- 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
- H01L24/42—Wire connectors; Manufacturing methods related thereto
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- H01L24/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
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- 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 potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups H01L21/18 - H01L21/326 or H10D48/04 - H10D48/07
- H01L21/4814—Conductive parts
- H01L21/4821—Flat leads, e.g. lead frames with or without insulating supports
- H01L21/4825—Connection or disconnection of other leads to or from flat leads, e.g. wires, bumps, other flat leads
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- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49517—Additional leads
- H01L23/49527—Additional leads the additional leads being a multilayer
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- H01L23/495—Lead-frames or other flat leads
- H01L23/49534—Multi-layer
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Abstract
Description
Claims (32)
- 중앙에 위치하는 구멍 (32) 주변에 캔틸레버식으로 연장하는 복수개의 리드 핑거(14')를 가지는 강성 금속 리드프레임부 (30)와, 적어도 하나의 유전층 (48)에 의해 지지되며 서로 전기적으로 격리되는 금속 박층(42,44)을 구비하며, 금속 박층 (42)은 상기 구멍 (32)내에서 연장하는 복수개의 회로 트레이스 (52)로 형성되며, TKDRL 회로 트레이스 (52)는 상기 강성부 (30), 전자장치 (74)에 전기적으로 연결될 수 있는, 가요성 다층부 (40)와, 상기 금속 박층 회로 트레이스 (52)를 상기 강성금속 리드프레임부 (30)의 리드 핑거(14')에 독립하여 전기적으로 연결시키는 수단 (72)을 구비하는 것을 특징으로 GK는 합성 리드프레임 (70).
- 제1항에 있어서, 상기 각 회로 트레이스 (52)는 상기 회로 트레이스 (52)에 밀접 근접하여 리드 핑거(14')에 전기적으로 연결되는 것을 특징으로 하는 합성 리드프레임 (70).
- 제2항에 있어서, 상기 금속 박층 (42)을 상기 강성 금속 리드프레임부 (30)에 전기적으로 연결시키기 위한 수단 (72)은 열압축 부착, 써모소닉 부착 및 솔더링 등에서 선택되는 것을 특징으로 하는 합성 리드프레임 (70).
- 제3항에 있어서, 상기 회로 트레이스 (52)를 상기 강성 금속부 (30)에 독립하여 전기적으로 연결시키는 수단 (72)은 금-주석 및 납-주석 공정합금에서 선택되는 것을 특징으로 한느 합성 리드프레임 (70).
- 제3항에 있어서, 상기 가요성 다층부 (40)는 제1 , 제 2 및 제3금속 박층 (42, 44,46)을 포함하며, 상기 제1 및 제2금속 박층은 제1유전층 (48)에 의해 분리되고, 상기 제2 및 제3금속 박층 (44,46)은 제2유전층 (50)에 의해 분리되는 것을 특징으로 하는 합성 리드프레이(70).
- 제5항에 있어서, 상기 제1, 제2 및 제3금속 박층(42,44,46)는 약 100% 의 IACS 전도성을 갖는 구리 또는 구리 기초 합금에서 선택되는 것을 특징으로 하는 합성 리드프레임 (70).
- 제6항에 있어서, 상기 가요성 다층부 (40)는 상기 제1구멍 (56)은 제 1 및 제2금속 박층 (42,44)과 제 1 및 제2유전층 (48,58)을 통해 연장하는, 제1구멍 (56)과, 상기 제1구멍 (56)을 둘러싸고 상기 제1금속층 (42)과 제1유전층 (48)을 통해 연장하는 제2구멍(58)을 포함하는 것을 특징으로 하는 합성 리드프레임 (70).
- 제7항에 있어서, 상기 제1, 제2 및 제3금소 박층(42,44,46)은 상기 강성 금속부 (30)에 대한 전기적 연결부 (72)를 위하여 제1 및 제2유전층 (48,50)을 넘어 연장하는 적어도 하나의 외부부 (54,60,78)를 포함하는 것을 특징으로 하는 합성 리드 프레임 (70).
- 제7항에 있어서, 전도성 바이어스 (79)가 상기 제1, 제2 및 제3금속 합금 박층 (42,44,46)에 전기적으로 연결되는 것을 특징으로 하는 합성 리드 프레임 (70).
- 제9항에 있어서, 상기 제1금속 박층 (42)은 상기 강성 금속부 (30)에 대한 전기적 연결부 (72)를 위하여 제1 및 제2유전층 (48,50)을 넘어 연장하는 적어도 하나의 외부부(54)를 포함하는 것을 특징으로 하는 합성 리드프레임 (70).
- 제6항에 있어서, 상기 가요성 다층부 (40)는 제1 및 제2금속 박층(42,44)과 제 1 및 제2유전층(48,50)을 통해 연장하는 제1구멍 (56)을 포함하는 것을 특징으로 하는 합성 리드프레임 (70).
- 제11항에 있어서, 상기 제1, 제2 및 제3금속층 (42,44,46)은 전도성 바이어스 (79)에 의해 전기적으로 상호 연결되는 것을 특징으로 하는 합성 리드프레임 (70).
- 제12항에 있어서, 상기 제1금속 박층 (42)은 상기 강성 금속부 (30)에 대한 전기적 연결부 (72)를 위하여 상기 제1 및 제2유전층 (48,50)을 넘어 연장하는 적어도 하나의 외부부 (54)를 포함하는 것을 특징으로 하는 합성 리드프레임 (70).
- 전자 장치 (74)를 수용하기 위한 패키지 (80)에 있어서, 베이스 부품 (82), 커버 부품 (84), 상기 베이스 부품 (82)과 커버 부품 (84)사이에 배치되는 합성리드프레임 (70), 상기 베이스 부품 (82)과 커버 부품 (84)에 상기 합성 리드프레임 (70)을 부착시키는 밀봉수단 (86)을 포함하며, 상기 합성 리드프레임 (70)은 중앙에 위치하는 제1구멍 (32) 주변에서 캔틸레버식으로 연장하는 복수개의 리드 핑거(14')를 갖는 강성 금속부(30)와, 적어도 하나의 유전층 (48)에 의해 지지되며 서로 전기적으로 격리되는 복수개의 금속 박층 (42,44)을 구비하는 가요성 다층부 (40)를 포함하며, 상기 적어도 하나의 금속 박층 (42)은 중앙에 위치한 구멍 (32)내에서 연장하는 복수개의 회로 트레이스 (52)로 형성되며, 상기 회로 트레이스 (52)는 상기 금속부 (30) 상기 금속 또는 전자장치 (74) 및 강성 금속부 (20)의 리드 핑거 (14')에 각각의 회로 트레이스 (52)를 독립하여 전기적으로 연결시키기 위한 수단 (72)에 전기적으로 연결될 수 있는 것을 특징으로 하는 패키지.
- 제14항에 있어서, 상기 각 회로 트레이스 (52)는 상기 회로 트레이스 (52)에 밀접 근접하는 리드 핑거(14')에 전기적으로 연결되는 것을 특징으로 하는 패키지.
- 제15항에 있어서, 상기 베이스 부품 (82)과 커버 부품 (84)은 금속, 플라스틱 및 세라믹에서 선택되는 것을 특징으로 하는 패키지.
- 제16항에 있어서, 상기 베이스 부품(82)은 금속 또는 금속 합금에서 선택되는 것을 특징으로 하는 패키지.
- 제17항에 있어서, 상기 베이스 부품 (82)은 알루미늄 또는 알루미늄 기초 합금에서 선택되는 것을 특징으로 하는 패키지.
- 제18항에 있어서, 상기 알루미늄 또는 알루미늄 기초 합금의 베이스 부품(82)은 분위기에 노출된 표면상에 전기 분해된 층을 갖는 것을 특징으로 하는 패키지.
- 제17항에 있어서, 밀봉체 (86)가 열가소성 폴리머 수지, 열경화성 폴리머 수지, 밀봉 유리 및 세라믹에서 선택되는 것을 특징으로 하는 패키지.
- 제20항에 있어서, 상기 밀봉체 (86)는 열경화성 폴리머 수지에서 선택되는 것을 특징으로 하는 패키지.
- 제21항에 있어서, 상기 가요성 다층부 (40)는 제1, 제2 및 제3금속박층 (42,44,46)을 포함하며, 제1 및 제2금속 박층 (42,44)은 제1유전층 (48)에 의해 분리되고, 제 1 및 제3금속 박층 (44,46)은 제2유전층 (50)과 제1 및 제2구멍 (56,59)에 의해 분리되고 상기 제1구멍 (56)은 제1 및 제2금속 박층 (42,44)과 제1 및 제2유전층 (48,50)을 통해 연장하고, 상기 제2구멍 (58)은 상기 제1구멍 (56)을 둘러싸며 상기 제1금속 박층 (42)과 제1유전층(48)을 통해 연장하는 것을 특징으로 하는 패키지.
- 제22항에 있어서, 제1, 제2 및 제3금속 박층 (42,44,46)은 상기 강성 금속부 (30)에 대한 전기적 연결부 (72)를 위하여 상기 제1 및 제2유전층 (48,50)을 넘어 연장하는 외부부 (54,60,78)을 포함하는 것을 특징으로 하는 패키지.
- 제23항에 있어서, 상기 제1 , 제2 및 제3금속 박층 (42,44,46)은 전자장치 (74)로부터 제1, 제2 및 제3금속 박층 (42,44,46)을 향하여 연장하는 와이어 부착에 의해 상기 전자 장치 (74)에 전기적으로 연결되는 것을 특징으로 하는 패키지.
- 제22항에 있어서, 상기 제1금속 박층 (42)은 상기 강성 금속부 (30)에 대한 전기적 연결부 (72)을 위하여 상기 제1 및 제2유전층 (48,50)을 넘어 연장하는 외부부 (54)를 포함하는 것을 특징으로 하는 패키지.
- 제25항에 있어서, 상기 가요성 다층부 (40)는 상기 제1, 제2 및 제3금속 박층(42,44,46)을 상호 연결시키는 전기 전도성 바이어스(70)를 포함하는 것을 특징으로 하는 패키지.
- 제26항에 있어서, 제1, 제2 및 제3금속 박층 (42,44,46)은 상기 전자 장치로터 제1금속 박층으로 연장하는 와이어 부착에 의해 상기 전자 장치 (74)에 전기적으로 연결되는 것을 특징으로 하는 패키지.
- 제21항에 있어서, 상기 가요성 다층부 (40)는 제1 및 제2금속 박층 (42,44)과 제1 및 제2유전층 (48,50)을 통해 연장하는 제1구멍 (56)을 포함하는 것을 특징으로 하는 패키지.
- 제28항에 있어서, 상기 제1금속 박층(42)은 상기 강성 금속부 (30)에 대한 전기적 연결부 (72)를 위하여 상기 제1 및 제2유전층 (48,50)을 넘어 연장하는 외부부(54)를 포함하는 것을 특징으로 하는 패키지.
- 제29항에 있어서, 상기 가요성 다층부 (40)는 상기 제1, 제2 및 제3금속 박층 (42,44,46)을 상호 연결시키는 전기 전도성 바이어스 (79)를 포함하는 것을 특징으로 하는 패키지.
- 제30항에 있어서, 상기 제1, 제2 및 제3금속 박층 (42,44,46)은 상기 전자 장치 (74)로부터 제1금속 박층(42)으로 연장하는 와이어 부착에 의해 상기 전자 장치 (74)에 전기적으로 연결되는 것을 특징으로 하는 패키지.
- 전자 장치 (74)를 수용하는 패키지 (80)에 있어서, 중앙에 위치하는 제1 구멍 (34)주변에서 캔틸레버식으로 연장하는 복수개의 리드 핑거(14')를 갖는 강성 금속부 (30)와, 적어도 하나의 유전층 (48)에 의해 지지되며 서로 전기적으로 격리되는 복수개의 금속 박층 (42,44)을 포함하는 가요성 다층부 (40)를 갖는 합성 리드프레임 (70)과, 가요성 다층부 (40)와 강성 금속 리드 핑거(14')의 적어도 일부를 캡슐화 하는 성형 폴리머 수지를 포함하며, 상기 적어도 하나의 제1금속 박층(42)은 중앙에 위치하는 구멍 (24)내에서 연장하는 복수개의 회로 트레이스 (52)로 형성되는, 상기 회로 트레이스 (52)는 상기 강성 금속부 (30), 전자장치 (74), 및 상기 강성 금속부의 리드 핑거(14')에 상기 각각의 회로 트레이스 (52) 독립하여 전기적으로 연결 시키기 위한 수단 (72)에 전기적으로 연결될 수 있는 것을 특징으로 하는 패키지 (80).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US429,120 | 1989-10-30 | ||
US07/429,120 US5025114A (en) | 1989-10-30 | 1989-10-30 | Multi-layer lead frames for integrated circuit packages |
PCT/US1990/005694 WO1991006978A2 (en) | 1989-10-30 | 1990-10-09 | Multi-layer lead frames for integrated circuit packages |
Publications (1)
Publication Number | Publication Date |
---|---|
KR0184588B1 true KR0184588B1 (ko) | 1999-03-20 |
Family
ID=23701895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019920700572A KR0184588B1 (ko) | 1989-10-30 | 1990-10-09 | 일체식 회로 패키지용 다층 리드프레임 |
Country Status (10)
Country | Link |
---|---|
US (1) | US5025114A (ko) |
EP (1) | EP0500690B1 (ko) |
JP (1) | JPH05501939A (ko) |
KR (1) | KR0184588B1 (ko) |
AU (1) | AU6727490A (ko) |
CA (1) | CA2065295A1 (ko) |
DE (1) | DE69028311T2 (ko) |
HK (1) | HK1008115A1 (ko) |
PH (1) | PH27421A (ko) |
WO (1) | WO1991006978A2 (ko) |
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-
1989
- 1989-10-30 US US07/429,120 patent/US5025114A/en not_active Expired - Fee Related
-
1990
- 1990-10-09 JP JP2515535A patent/JPH05501939A/ja active Pending
- 1990-10-09 CA CA002065295A patent/CA2065295A1/en not_active Abandoned
- 1990-10-09 AU AU67274/90A patent/AU6727490A/en not_active Abandoned
- 1990-10-09 KR KR1019920700572A patent/KR0184588B1/ko not_active IP Right Cessation
- 1990-10-09 EP EP90916948A patent/EP0500690B1/en not_active Expired - Lifetime
- 1990-10-09 WO PCT/US1990/005694 patent/WO1991006978A2/en active IP Right Grant
- 1990-10-09 DE DE69028311T patent/DE69028311T2/de not_active Expired - Fee Related
- 1990-10-19 PH PH41412A patent/PH27421A/en unknown
-
1998
- 1998-06-27 HK HK98107156A patent/HK1008115A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU6727490A (en) | 1991-05-31 |
DE69028311D1 (de) | 1996-10-02 |
EP0500690A1 (en) | 1992-09-02 |
JPH05501939A (ja) | 1993-04-08 |
US5025114A (en) | 1991-06-18 |
EP0500690A4 (en) | 1993-05-19 |
WO1991006978A3 (en) | 1991-06-13 |
WO1991006978A2 (en) | 1991-05-16 |
DE69028311T2 (de) | 1997-04-03 |
HK1008115A1 (en) | 1999-04-30 |
PH27421A (en) | 1993-06-21 |
EP0500690B1 (en) | 1996-08-28 |
CA2065295A1 (en) | 1991-05-01 |
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