JP2009524248A - 高い静電放電性能を有するフローティングゲート構造 - Google Patents
高い静電放電性能を有するフローティングゲート構造 Download PDFInfo
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- 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
- H01L27/027—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 specially adapted to provide an electrical current path other than the field effect induced current path
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- H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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Abstract
Description
field)ESDデバイスに形成され得る。用語「フィールドゲート」はポリシリコンを含むゲートを除外しないことを理解されたい。この場合、オン抵抗は1オームの数10分の1程度にまで減らされる可能性がある。したがってこの新規なESD構造は、低電圧出力保護によく適しており、人体モデル(HBM)ESD障害閾値を9kVより高くすることができる。
Claims (22)
- フローティング・フィールド・ゲート・デバイスを含む半導体構造であって、
前記フローティング・フィールド・ゲート・デバイスは、ツェナーダイオードより小さな温度依存性を有することを特徴とする埋込みダイオードを含む、半導体構造。 - 前記埋込みダイオードは、p/n型ダイオード含む、請求項1に記載の半導体構造。
- 前記埋込みダイオードは、さらに、ツェナーダイオードを含む、請求項2に記載の半導体構造。
- 前記p/n型ダイオードと前記ツェナーダイオードは、共通のカソードを含む、請求項3に記載の半導体構造。
- 前記埋込みダイオードのスナップバック保持電圧は、関連する集積回路の動作電圧より高く、前記埋込みダイオードのスナップバックトリガー電圧は、前記半導体構造のブレークダウン電圧より低い、請求項4に記載の半導体構造。
- ESDトリガー電圧によってトリガーされて動作可能な請求項5に記載の半導体構造であって、前記埋込みダイオードが導通しているときに、ESD保持電圧の一部分が前記埋込みダイオードによって維持される、請求項5に記載の半導体構造。
- 前記埋込みダイオードは、静電放電(ESD)事象後にオフになる、請求項6に記載の半導体構造。
- 出力パッドに接続された複数の第1のフィンガと、
前記第1のフィンガ間に交互に配置されて、グランドパッドに接続されている複数の第2のフィンガと、
前記第1および第2のフィンガ間に設けられた複数のフローティング・フィールド・ゲートと、を含む静電放電保護のための半導体構造であって、
前記第1のフィンガは、前記半導体構造のブレークダウン電圧より低いダイオードブレークダウン電圧と前記半導体構造の前記ブレークダウン電圧より低いスナップバックトリガー電圧とを有することを特徴とする埋込みハイブリッドダイオードを含む、半導体構造。 - 前記埋込みハイブリッドダイオードは、ツェナーダイオードより小さな温度依存性を有することを特徴とする、請求項8に記載の半導体構造。
- 前記埋込みハイブリッドダイオードは、p/nダイオードより小さな温度依存性を有することを特徴とする、請求項8に記載の半導体構造。
- 前記埋込みハイブリッドダイオードは、ツェナーダイオードを含む、請求項8に記載の半導体構造。
- 前記埋込みハイブリッドダイオードは、p/nダイオードを含む、請求項8に記載の半導体構造。
- 前記p/nダイオードは、アノード材料からなるウェルを含む、請求項12に記載の半導体構造。
- 前記埋込みハイブリッドダイオードは、ツェナーダイオードとp/nダイオードとを含み、両者は共通のカソードを共有している、請求項8に記載の半導体構造。
- 前記ESD構造は、そのブレークダウン電圧に対する調整を許容する、請求項8に記載の半導体構造。
- オフチップ出力を駆動する回路と、
前記回路に埋め込まれたハイブリッドダイオードデバイスと、を含み、
前記回路は、プルダウンデバイスを含んでおり、
前記ハイブリッドダイオードデバイスは、前記プルダウンデバイスのブレークダウン電圧より低いトリガー電圧を有することを特徴としている、
半導体構造。 - ESD事象時に保護を提供するための集積回路(IC)の静電放電(ESD)保護回路であって、前記回路は、
電流制御コンポーネントと、
前記電流制御コンポーネントに直列に接続された電流方向制御コンポーネントと、を含み、
前記静電放電保護回路のスナップバック保持電圧は、前記集積回路の動作電圧より高く、前記静電放電保護回路のスナップバックトリガー電圧は、前記ICの酸化物ブレークダウン電圧より低い、静電放電(ESD)保護回路。 - 前記電流制御コンポーネントはトランジスタである、請求項17に記載のESD保護回路。
- 前記トランジスタはMOSFETである、請求項17に記載のESD保護回路。
- 前記トランジスタと前記ダイオードはESD事象後にシャットオフする、請求項18に記載のESD保護回路。
- 前記電流方向制御コンポーネントは、前記電流制御コンポーネントに埋め込まれたダイオードである、請求項17に記載のESD保護回路。
- ESDトリガー電圧によってトリガーされて動作可能な請求項21に記載のESD保護回路であって、前記ダイオードが導通しているときに、保持電圧の一部分が前記ダイオードによって維持される、請求項21に記載のESD保護回路。
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PCT/US2007/001473 WO2007084688A1 (en) | 2006-01-18 | 2007-01-18 | Floating gate structure with high electrostatic discharge performance |
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JP5296450B2 (ja) * | 2008-08-13 | 2013-09-25 | セイコーインスツル株式会社 | 半導体装置 |
DE102008047850B4 (de) | 2008-09-18 | 2015-08-20 | Austriamicrosystems Ag | Halbleiterkörper mit einer Schutzstruktur und Verfahren zum Herstellen derselben |
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CN105609500B (zh) * | 2016-01-28 | 2018-10-12 | 嘉兴爱禾电子有限公司 | 一种共极集成二极管 |
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EP1977450A1 (en) | 2008-10-08 |
US9111754B2 (en) | 2015-08-18 |
WO2007084688A1 (en) | 2007-07-26 |
EP1977450A4 (en) | 2010-07-21 |
KR20080100164A (ko) | 2008-11-14 |
EP1977450B1 (en) | 2015-06-10 |
JP5738903B2 (ja) | 2015-06-24 |
CN101361193A (zh) | 2009-02-04 |
CN101361193B (zh) | 2013-07-10 |
TW200735324A (en) | 2007-09-16 |
KR101139438B1 (ko) | 2012-04-27 |
TWI435430B (zh) | 2014-04-21 |
US20070236843A1 (en) | 2007-10-11 |
JP2013123060A (ja) | 2013-06-20 |
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