KR100887805B1 - 절연 게이트 바이폴라 트랜지스터의 보호장치 - Google Patents
절연 게이트 바이폴라 트랜지스터의 보호장치 Download PDFInfo
- Publication number
- KR100887805B1 KR100887805B1 KR1020070092367A KR20070092367A KR100887805B1 KR 100887805 B1 KR100887805 B1 KR 100887805B1 KR 1020070092367 A KR1020070092367 A KR 1020070092367A KR 20070092367 A KR20070092367 A KR 20070092367A KR 100887805 B1 KR100887805 B1 KR 100887805B1
- Authority
- KR
- South Korea
- Prior art keywords
- voltage
- gate
- mosfet
- igbt
- type floating
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 12
- 239000004065 semiconductor Substances 0.000 abstract description 3
- 230000005669 field effect Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
- H01L27/0251—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices
- H01L27/0266—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices using field effect transistors as protective elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/70—Bipolar devices
- H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
- H01L29/73—Bipolar junction transistors
- H01L29/7302—Bipolar junction transistors structurally associated with other devices
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (6)
- 삭제
- 삭제
- p형 플로팅 웰을 포함하여 구성되는 메인 IGBT;상기 p형 플로팅 웰에서 흐르는 전류를 감지하여 풀-다운 회로 내 제2 모스펫의 게이트에 전압을 인가하는 제1 모스펫을 포함하여 구성되는 전류감지 회로;상기 전류감지 회로의 전압 인가에 의하여 온(on)되어 메인IGBT의 게이트 전압을 낮추는 제2 모스펫을 포함하여 구성되는 풀-다운 회로;를 포함하여 구성되는 절연 게이트 바이폴라 트랜지스터의 보호장치에 있어서,상기 p형 플로팅 웰의 전압은 상기 제1 모스펫 소자의 게이트와 드레인에 함께 인가되는 것을 특징으로 하는 절연 게이트 바이폴라 트랜지스터의 보호장치.
- 청구항 3에 있어서,상기 전류감지 회로는 소스저항을 더 포함하여 구성되며, 상기 소스저항은 상기 제1 모스펫 소자의 소스에 연결되어 상기 풀-다운 회로의 게이트에 전압을 상승시키는 것을 특징으로 하는 절연 게이트 바이폴라 트랜지스터의 보호장치.
- 청구항 4에 있어서,상기 메인 IGBT 소자의 게이트에 인가되는 전압의 크기는 상기 제2 모스펫의 온(on) 저항과 상기 메인 IGBT의 게이트 저항의 저항비에 의해 결정되는 것을 특징으로 하는 절연 게이트 바이폴라 트랜지스터의 보호장치.
- 삭제
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070092367A KR100887805B1 (ko) | 2007-09-12 | 2007-09-12 | 절연 게이트 바이폴라 트랜지스터의 보호장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020070092367A KR100887805B1 (ko) | 2007-09-12 | 2007-09-12 | 절연 게이트 바이폴라 트랜지스터의 보호장치 |
Publications (1)
Publication Number | Publication Date |
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KR100887805B1 true KR100887805B1 (ko) | 2009-03-09 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020070092367A KR100887805B1 (ko) | 2007-09-12 | 2007-09-12 | 절연 게이트 바이폴라 트랜지스터의 보호장치 |
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KR (1) | KR100887805B1 (ko) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07263641A (ja) * | 1994-03-17 | 1995-10-13 | Hitachi Ltd | 保護回路を内蔵した絶縁ゲート型半導体装置 |
KR960012458A (ko) * | 1994-09-16 | 1996-04-20 | 김광호 | 과전류 보호기능을 가지는 전력공급용 반도체장치 |
JPH09321302A (ja) * | 1995-11-06 | 1997-12-12 | Toshiba Corp | 半導体装置及びその保護方法 |
KR100625214B1 (ko) * | 2005-01-20 | 2006-09-20 | 재단법인서울대학교산학협력재단 | 보호회로를 내장한 절연게이트형 반도체 장치 |
-
2007
- 2007-09-12 KR KR1020070092367A patent/KR100887805B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07263641A (ja) * | 1994-03-17 | 1995-10-13 | Hitachi Ltd | 保護回路を内蔵した絶縁ゲート型半導体装置 |
KR960012458A (ko) * | 1994-09-16 | 1996-04-20 | 김광호 | 과전류 보호기능을 가지는 전력공급용 반도체장치 |
JPH09321302A (ja) * | 1995-11-06 | 1997-12-12 | Toshiba Corp | 半導体装置及びその保護方法 |
KR100625214B1 (ko) * | 2005-01-20 | 2006-09-20 | 재단법인서울대학교산학협력재단 | 보호회로를 내장한 절연게이트형 반도체 장치 |
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