JP6824667B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP6824667B2 JP6824667B2 JP2016169911A JP2016169911A JP6824667B2 JP 6824667 B2 JP6824667 B2 JP 6824667B2 JP 2016169911 A JP2016169911 A JP 2016169911A JP 2016169911 A JP2016169911 A JP 2016169911A JP 6824667 B2 JP6824667 B2 JP 6824667B2
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- 239000004065 semiconductor Substances 0.000 title claims description 43
- 230000001681 protective effect Effects 0.000 claims description 82
- 239000012535 impurity Substances 0.000 claims description 16
- 230000000052 comparative effect Effects 0.000 description 17
- 239000012212 insulator Substances 0.000 description 12
- 230000006870 function Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
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- 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
- H01L29/86—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
- H01L29/861—Diodes
- H01L29/8613—Mesa PN junction diodes
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/0684—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by the shape, relative sizes or dispositions of the semiconductor regions or junctions between the regions
- H01L29/0692—Surface layout
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66083—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by variation of the electric current supplied or the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. two-terminal devices
- H01L29/6609—Diodes
- H01L29/66143—Schottky diodes
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- 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
- H01L29/861—Diodes
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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
- H01L29/86—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
- H01L29/861—Diodes
- H01L29/872—Schottky diodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
- H01L2224/8338—Bonding interfaces outside the semiconductor or solid-state body
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- 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
- H01L27/0255—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices using diodes as protective elements
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- H—ELECTRICITY
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- 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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/0603—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions
- H01L29/0642—Isolation within the component, i.e. internal isolation
- H01L29/0649—Dielectric regions, e.g. SiO2 regions, air gaps
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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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)
- Manufacturing & Machinery (AREA)
- Semiconductor Integrated Circuits (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Description
図1Aは、本発明の実施形態に係る半導体装置としての保護素子1および2の使用形態の一例を示す図であり、保護素子1および2を含む集積回路100の部分的な構成の一例を示す回路図である。集積回路100は、保護素子1および2と、保護素子1および2によって保護される保護対象回路の一例である出力回路110と、電極パッド111、112、113と、を含んで構成されている。電極パッド111は、出力回路110を含む集積回路100内の各回路に電源電圧VDDを供給するための電源端子であり、電源ライン114を介して出力回路110を含む集積回路100内の各回路に接続されている。電極パッド112は、出力回路110を含む集積回路100内の各回路に接地電圧VSSを供給するためのグランド端子であり、グランドライン115を介して出力回路110を含む集積回路100内の各回路に接続されている。電極パッド113は、出力回路110から出力される出力信号を集積回路100の外部に取り出すための信号出力端子であり、信号ライン116を介して出力回路110の出力端に接続されている。
図8は、本発明の第2の実施形態に係る半導体装置としての保護素子1Aの構成を示す平面図である。保護素子1Aは、第1の導電部20および第2の導電部30のパターンが第1の実施形態に係る保護素子1と異なる。具体的には、保護素子1Aは、第1の導電部20が第6の部分26を更に含み、第2の導電部30が、第3のアイランド部33を更に含む点が、第1の実施形態に係る保護素子1と異なる。
図9は、本発明の第3の実施形態に係る半導体装置としての保護素子1Bの構成を示す平面図である。保護素子1Bは、第1の導電部20および第2の導電部30のパターンが第1の実施形態に係る保護素子1と異なる。
図10は、本発明の第4の実施形態に係る半導体装置としての保護素子1Cの構成を示す平面図である。保護素子1Cは、第1の導電部20および第2の導電部30のパターンが第1の実施形態に係る保護素子1と異なる。具体的には、保護素子1Cは、第1の導電部20がX方向に伸びる部分を含んでおらず、第2の導電部30を構成する第1のアイランド部31および第2のアイランド部32が、第1の導電部20の第1の部分21〜第3の部分23と同じ長さを有している。
図11は、本発明の第5の実施形態に係る半導体装置としての保護素子1Dの構成を示す平面図である。保護素子1Dは、第1の導電部20および第2の導電部30のパターンが第1の実施形態に係る保護素子1と異なる。
10 シリコン基板
11 Nウェル
20 第1の導電部
21 第1の部分
22 第2の部分
23 第3の部分
24 第4の部分
25 第5の部分
26 第6の部分
30 第2の導電部
31 第1のアイランド部
32 第2のアイランド部
33 第3のアイランド部
34 第4のアイランド部
39 環状部
40、41 絶縁体
Claims (7)
- 各々が第1の導電型を有し且つ第1の方向に伸び、前記第1の方向と交差する第2の方向に互いに離間して並置された複数の部分を有する第1の導電部と、
前記第1の導電部の前記複数の部分の各々の間に設けられ、前記第1の導電型とは異なる第2の導電型を有し且つ前記第1の方向に伸びるアイランド部を有する第2の導電部と、
を含み、
前記第1の導電部及び前記第2の導電部は、前記第2の導電型を有するウェル内に設けられ、
前記第1の導電部は、前記第1の導電部よりも不純物濃度が低い前記第1の導電型の低濃度領域を介して前記ウェルに接続されている
半導体装置。 - 前記第1の導電部の前記複数の部分は、各々が前記第1の導電型を有し且つ前記第1の方向に伸び、前記第2の方向に互いに離間して並置された少なくとも3つの部分であり、
前記第2の導電部は、各々が前記第1の導電部の前記少なくとも3つの部分の各々の間に設けられ、前記第2の導電型を有し且つ前記第1の方向に伸びる複数のアイランド部を有する
請求項1に記載の半導体装置。 - 前記第2の導電部は、前記第2の導電型を有し且つ前記第1の導電部を囲む環状パターンを有する環状部を更に含む
請求項1または請求項2に記載の半導体装置。 - 前記環状部は、前記第1の方向に伸びる部分と、前記第2の方向に伸びる部分とを有する矩形環状パターンを有する
請求項3に記載の半導体装置。 - 前記第1の導電部は、前記第1の導電型を有し且つ前記環状部の内側において前記環状部の前記第2の方向に伸びる部分と対向する前記第2の方向に伸びる部分を更に含む
請求項4に記載の半導体装置。 - 前記第1の導電部は、各々が前記第1の導電型を有し且つ前記第1の方向に伸び、前記第2の方向に互いに離間して並置された少なくとも3つの部分と、前記少なくとも3つの部分の各々と交差する複数の部分とからなる格子状パターンを有し、
前記第2の導電部は、各々が前記第1の導電部の前記格子状パターンにおける各格子の内側に設けられ、前記第2の導電型を有し且つ前記第1の方向に伸びる複数のアイランド部を有する
請求項1に記載の半導体装置。 - 各々が第1の導電型を有し且つ第1の方向に伸び、前記第1の方向と交差する第2の方向に互いに離間して並置された複数の部分を有する第1の導電部と、前記第1の導電部の前記第1の方向に伸びる複数の部分の各々の間に設けられ、前記第1の導電型とは異なる第2の導電型を有し且つ前記第1の方向に伸びるアイランド部を有する第2の導電部と、を備えた第1の保護素子と、
各々が前記第2の導電型を有し且つ第1の方向に伸び、前記第2の方向に互いに離間して並置された複数の部分を有する第3の導電部と、前記第3の導電部の前記第1の方向に伸びる複数の部分の各々の間に設けられ、前記第1の導電型を有し且つ前記第1の方向に伸びるアイランド部を有する第4の導電部と、を備えた第2の保護素子と、
を含み、
前記第1の導電部及び前記第2の導電部は、前記第2の導電型を有する第1のウェル内に設けられ、
前記第1の導電部は、前記第1の導電部よりも不純物濃度が低い前記第1の導電型の低濃度領域を介して前記第1のウェルに接続されており、
前記第3の導電部及び前記第4の導電部は、前記第1の導電型を有する第2のウェル内に設けられ、
前記第3の導電部は、前記第3の導電部よりも不純物濃度が低い前記第2の導電型の低濃度領域を介して前記第2のウェルに接続されている
半導体装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016169911A JP6824667B2 (ja) | 2016-08-31 | 2016-08-31 | 半導体装置 |
CN201710722942.4A CN107799515B (zh) | 2016-08-31 | 2017-08-22 | 半导体装置 |
US15/683,883 US10157903B2 (en) | 2016-08-31 | 2017-08-23 | Semiconductor device |
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JP2016169911A JP6824667B2 (ja) | 2016-08-31 | 2016-08-31 | 半導体装置 |
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JP2021003587A Division JP7048160B2 (ja) | 2021-01-13 | 2021-01-13 | 半導体装置 |
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JP6824667B2 true JP6824667B2 (ja) | 2021-02-03 |
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US10930747B2 (en) | 2019-06-04 | 2021-02-23 | Nxp B.V. | Semiconductor device with an encircled electrode |
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JP3237110B2 (ja) * | 1998-03-24 | 2001-12-10 | 日本電気株式会社 | 半導体装置 |
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JP2016035952A (ja) * | 2014-08-01 | 2016-03-17 | ラピスセミコンダクタ株式会社 | 半導体素子および半導体装置 |
TWI704670B (zh) * | 2016-05-09 | 2020-09-11 | 聯華電子股份有限公司 | 具有靜電放電防護功能的半導體元件 |
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US10157903B2 (en) | 2018-12-18 |
CN107799515B (zh) | 2022-02-18 |
JP2018037536A (ja) | 2018-03-08 |
US20180061821A1 (en) | 2018-03-01 |
CN107799515A (zh) | 2018-03-13 |
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