KR0174621B1 - 반도체장치의 정전기 보호장치 - Google Patents
반도체장치의 정전기 보호장치 Download PDFInfo
- Publication number
- KR0174621B1 KR0174621B1 KR1019950035023A KR19950035023A KR0174621B1 KR 0174621 B1 KR0174621 B1 KR 0174621B1 KR 1019950035023 A KR1019950035023 A KR 1019950035023A KR 19950035023 A KR19950035023 A KR 19950035023A KR 0174621 B1 KR0174621 B1 KR 0174621B1
- Authority
- KR
- South Korea
- Prior art keywords
- overvoltage
- input pad
- power supply
- supply voltage
- internal circuit
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims description 18
- 230000015556 catabolic process Effects 0.000 claims abstract description 21
- 230000002265 prevention Effects 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims description 17
- 230000003068 static effect Effects 0.000 claims description 17
- 230000002159 abnormal effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D89/00—Aspects of integrated devices not covered by groups H10D84/00 - H10D88/00
- H10D89/60—Integrated devices comprising arrangements for electrical or thermal protection, e.g. protection circuits against electrostatic discharge [ESD]
- H10D89/601—Integrated devices comprising arrangements for electrical or thermal protection, e.g. protection circuits against electrostatic discharge [ESD] for devices having insulated gate electrodes, e.g. for IGFETs or IGBTs
- H10D89/711—Integrated devices comprising arrangements for electrical or thermal protection, e.g. protection circuits against electrostatic discharge [ESD] for devices having insulated gate electrodes, e.g. for IGFETs or IGBTs using bipolar transistors as protective elements
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D89/00—Aspects of integrated devices not covered by groups H10D84/00 - H10D88/00
- H10D89/60—Integrated devices comprising arrangements for electrical or thermal protection, e.g. protection circuits against electrostatic discharge [ESD]
- H10D89/601—Integrated devices comprising arrangements for electrical or thermal protection, e.g. protection circuits against electrostatic discharge [ESD] for devices having insulated gate electrodes, e.g. for IGFETs or IGBTs
- H10D89/611—Integrated devices comprising arrangements for electrical or thermal protection, e.g. protection circuits against electrostatic discharge [ESD] for devices having insulated gate electrodes, e.g. for IGFETs or IGBTs using diodes as protective elements
Landscapes
- Semiconductor Integrated Circuits (AREA)
- Bipolar Integrated Circuits (AREA)
Abstract
Description
Claims (4)
- 입력패드(10)와, 상기 입력패드(10)를 통해서 입력되는 신호를 받아들이는 내부회로(20)를 포함하는 반도체장치의 정전기 보호장치에 있어서; 상기 입력패드(10)와 전원전압(VDD)에 사이에 연결된 제1브레이크다운 다이오드(D1)와; 상기 입력패드(10)와 접지전압(GND)사이에 연결된 제2브레이크다운 다이오드(D2) 및; 상기 전원전압(VDD)과 접지전압(GND)사이에 연결되고, 상기 전원전압(VDD)에 대하여 상대적으로 큰 음의 과전압 또는 상기 접지전압(GND)에 대하여 상대적으로 큰 양의 과전압이 상기 입력패드(10)에 인가될 때, 그렇게 입력된 과전압이 상기 내부회로(20)로 유입되는 것을 방지하는 과전압 유입방지수단(30)을 포함하고; 상기 과전압 유입방지수단(30)은 상기 전원전압(VDD)에 연결된 콜렉터, 상기 접지전압(GND)에 연결된 에미터, 그리고 오픈된 베이스를 가지는 npn트랜지스터(Q21)로 구성되는 것을 특징으로 하는 반도체장치의 정전기 보호장치.
- 제1항에 있어서, 상기 npn트랜지스터(Q21)는 상기 내부회로(20)의 최대 동작 전압이 이상이면서 가장 낮은 내압을 갖도록 제조되는 것을 특징으로 하는 반도체장치의 정전기 보호장치.
- 입력패드(10)와, 상기 입력패드(10)를 통해서 입력되는 신호를 받아들이는 내부회로(20)를 포함하는 반도체장치의 정전기 보호장치에 있어서; 상기 입력패드(10)와 전원전압(VDD)에 사이에 연결된 제1브레이크다운 다이오드(D1)와; 상기 입력패드(10)와 접지전압(GND)사이에 연결된 제2브레이크다운 다이오드(D2) 및 ; 상기 전원전압(VDD)과 접지전압(GND)사이에 연결되고, 상기 전원전압(VDD)에 대하여 상대적으로 큰 음의 과전압 또는 상기 접지전압(GND) 대하여 상대적으로 큰 양의 과전압이 상기 입력패드(10)에 인가될 때, 그렇게 입력된 과전압이 상기 내부회로(20)로 유입되는 것을 방지하는 과전압 유입방지수단(30)을 포함하고; 상기 과전압 유입방지수단(30)은 저항(R31), 그리고 상기 전원전압(VDD)에 연결된 콜렉터, 상기 접지전압오(GND)에 연결된 에미터, 그리고 상기 저항(R31)을 통해서 상기 접지전압(GND)에 연결된 베이스를 가지는 npn트랜지스터(Q22)로 구성되는 것을 특징으로 하는 반도체장치의 정전기 보호장치.
- 제3항에 있어서, 상기 npn트랜지스터(Q22)는 상기 내부회로(20)의 최대 동작 전압이 이상이면서 가장 낮은 내압을 갖도록 제조되는 것을 특징으로 하는 반도체장치의 정전기 보호장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950035023A KR0174621B1 (ko) | 1995-10-12 | 1995-10-12 | 반도체장치의 정전기 보호장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950035023A KR0174621B1 (ko) | 1995-10-12 | 1995-10-12 | 반도체장치의 정전기 보호장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970025334A KR970025334A (ko) | 1997-05-30 |
KR0174621B1 true KR0174621B1 (ko) | 1999-02-01 |
Family
ID=19429909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950035023A KR0174621B1 (ko) | 1995-10-12 | 1995-10-12 | 반도체장치의 정전기 보호장치 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0174621B1 (ko) |
-
1995
- 1995-10-12 KR KR1019950035023A patent/KR0174621B1/ko not_active IP Right Cessation
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Publication number | Publication date |
---|---|
KR970025334A (ko) | 1997-05-30 |
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