JP2007523476A - 集積半導体回路を保護するための回路装置および方法 - Google Patents
集積半導体回路を保護するための回路装置および方法 Download PDFInfo
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- 238000001514 detection method Methods 0.000 claims description 4
- 230000036962 time dependent Effects 0.000 claims 4
- 230000001052 transient effect Effects 0.000 description 36
- 230000008569 process Effects 0.000 description 13
- 230000001960 triggered effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
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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
- H01L27/0259—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices using bipolar transistors as protective elements
- H01L27/0262—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices using bipolar transistors as protective elements including a PNP transistor and a NPN transistor, wherein each of said transistors has its base coupled to the collector of the other transistor, e.g. silicon controlled rectifier [SCR] devices
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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
- H01L27/04—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 the substrate being a semiconductor body
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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
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Abstract
Description
図1は保護回路および制御もしくはトリガ回路を備えた回路装置を略示し、
図2は保護回路およびトリガ回路を備えた第2の回路装置を略示し、
図3は保護回路およびトリガ回路を備えた第3の回路装置を略示し、
図4は保護回路およびトリガ回路を備えた第4の回路装置を略示し、
図5は保護回路およびトリガ回路を備えた別の回路装置を略示し、
図6はハイボルトプロセスにおいてサイリスタを実現するためのストラクチャを断面にて略示している。
Claims (18)
- サイリスタストラクチャを含んでおりかつ保護すべきエレメントと基準電位との間に介挿されている保護回路と、該保護回路のドライブ制御用制御回路とを備えている集積半導体回路を保護するための回路装置において、
制御回路(TC;C1,R1,I1ないしI3)は複数の制御信号を生成し、該制御信号がそれぞれ保護回路(SCR)のアクティブエレメント(T1,T2)をドライブ制御する
ことを特徴とする回路装置。 - 制御回路は検出器回路(R1,C1)を含んでおり、該検出器回路は入力側が保護回路に対して並列に接続されておりかつ検出判断基準が満たされるとスイッチングエレメント(I1ないしI3)をドライブ制御し、該スイッチングエレメントが制御信号を生成する
請求項1記載の回路装置。 - 検出器回路は抵抗と容量とから成る第1のRC素子(R1,C1)を含んでいる
請求項1または2記載の回路装置。 - スイッチングエレメントはインバータ(I1ないしI3;I4ないしI6)を含んでいる
請求項2または3記載の回路装置。 - 保護回路の異なっている導電形のアクティブエレメントに対する制御信号は逆極性でありかつそれぞれアクティブエレメントの制御入力側をドライブ制御する
請求項1から4までのいずれか1項記載の回路装置。 - 制御回路の検出器回路は、保護すべきエレメント(PV,LV)における予め定めた上昇時間を有する信号上昇を識別するように構成されている
請求項1から5までのいずれか1項記載の回路装置。 - 制御回路は時間に依存しているエレメント(R1,C1;R10,C10,R20,C20)を含んでおり、該エレメントは制御回路の活性化の持続時間を決定する
請求項1から6までのいずれか1項記載の回路装置。 - 時間に依存しているエレメントはRC素子(R1,C1;R10,C10,R20,C20)であり、該素子は一方において制御回路の活性化の開始および他方において活性化の終了の基準を作る
請求項7記載の回路装置。 - 検出器回路およびスイッチングエレメントは個別トランジスタによって実現されている
請求項2記載の回路装置。 - 制御回路の検出判断基準として、保護すべきエレメント(PV,LV)における予め定めた上昇時間を有する信号上昇の識別が予め定められている
請求項2または9記載の回路装置。 - 制御回路は時間に依存しているエレメント(R13,C13;R10,C10,R20,C20)を含んでおり、該エレメントは制御回路の活性化の持続時間を決定する
請求項9または10記載の回路装置。 - 検出器回路は少なくとも、時間に依存しているエレメントとして抵抗および容量から成るRC素子(R10,C10)と検出器スイッチングエレメント(TD10)とを含んでいる
請求項9から11までのいずれか1項記載の回路装置。 - 検出器回路とスイッチングエレメントとの接続ノードは、制御回路の活性化の持続時間に対して基準となる少なくとも1つの別のRC素子(R30,C30)に接続されている
請求項9から12までのいずれか1項記載の回路装置。 - 検出器回路は2つの検出器部分回路から構成されており、該検出器部分回路はそれぞれ、保護回路のアクティブエレメントに対するスイッチングエレメントをドライブ制御する
請求項9から13までのいずれか1項記載の回路装置。 - スイッチングエレメントは個別のMOSまたはバイポーラトランジスタ(TH1,TL1;TH10,TL10)として形成されている
請求項9から14までのいずれか1項記載の回路装置。 - スイッチングエレメントにドライバエレメント(T12,T13)が前置接続されている
請求項9から15までのいずれか1項記載の回路装置。 - 保護回路のアクティブエレメントの制御入力側は半導体ストラクチャにおいて異なっている導電形のウェルを用いて実現されており、該ウェルにはアクティブエレメント(T1,T2)の出力回路に対する高ドーピングされた領域が配置されている
請求項1から16までのいずれか1項記載の回路装置。 - 保護すべきエレメント(PV,LV)の状態を検出しかつ制御回路(TC;C1,R1,I1ないしI3)によって複数の制御信号を生成し、該制御信号をそれぞれ、保護回路(SCR)のアクティブエレメント(T1,T2)の制御入力側に供給する、請求項1から17までのいずれか1項記載の回路装置を備えている集積半導体回路を保護するための方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE200410007241 DE102004007241A1 (de) | 2004-02-13 | 2004-02-13 | Schaltungsanordnung und Verfahren zum Schutz einer integrierten Halbleiterschaltung |
DE200410056222 DE102004056222A1 (de) | 2004-11-22 | 2004-11-22 | Schaltungsanordnung und Verfahren zum Schutz einer integrierten Halbleiterschaltung |
PCT/EP2005/001476 WO2005078798A2 (de) | 2004-02-13 | 2005-02-14 | Schaltungsanordnung und verfahren zum schutz einer integrierten halbleiterschaltung |
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JP2007523476A true JP2007523476A (ja) | 2007-08-16 |
JP4651044B2 JP4651044B2 (ja) | 2011-03-16 |
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JP2006552569A Active JP4651044B2 (ja) | 2004-02-13 | 2005-02-14 | 集積半導体回路を保護するための回路装置および方法 |
Country Status (6)
Country | Link |
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US (1) | US7738222B2 (ja) |
EP (1) | EP1714321B1 (ja) |
JP (1) | JP4651044B2 (ja) |
KR (1) | KR100914790B1 (ja) |
DE (1) | DE502005009563D1 (ja) |
WO (1) | WO2005078798A2 (ja) |
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DE102007040875B4 (de) | 2007-08-29 | 2017-11-16 | Austriamicrosystems Ag | Schaltungsanordnung zum Schutz vor elektrostatischen Entladungen und Verfahren zum Betreiben einer solchen |
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CN111697549B (zh) * | 2019-03-14 | 2021-11-12 | 中芯国际集成电路制造(上海)有限公司 | Esd保护电路以及电子器件 |
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- 2005-02-14 JP JP2006552569A patent/JP4651044B2/ja active Active
- 2005-02-14 US US10/588,984 patent/US7738222B2/en active Active
- 2005-02-14 EP EP05707380A patent/EP1714321B1/de not_active Not-in-force
- 2005-02-14 KR KR1020067016180A patent/KR100914790B1/ko active IP Right Grant
- 2005-02-14 WO PCT/EP2005/001476 patent/WO2005078798A2/de active Application Filing
- 2005-02-14 DE DE502005009563T patent/DE502005009563D1/de active Active
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US7738222B2 (en) | 2010-06-15 |
KR20060127133A (ko) | 2006-12-11 |
EP1714321B1 (de) | 2010-05-12 |
KR100914790B1 (ko) | 2009-09-02 |
JP4651044B2 (ja) | 2011-03-16 |
EP1714321A2 (de) | 2006-10-25 |
WO2005078798A3 (de) | 2005-10-13 |
WO2005078798A2 (de) | 2005-08-25 |
DE502005009563D1 (de) | 2010-06-24 |
US20080285199A1 (en) | 2008-11-20 |
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