JP2010177317A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JP2010177317A JP2010177317A JP2009016230A JP2009016230A JP2010177317A JP 2010177317 A JP2010177317 A JP 2010177317A JP 2009016230 A JP2009016230 A JP 2009016230A JP 2009016230 A JP2009016230 A JP 2009016230A JP 2010177317 A JP2010177317 A JP 2010177317A
- Authority
- JP
- Japan
- Prior art keywords
- region
- layer
- junction
- type
- diffusion layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 53
- 238000002955 isolation Methods 0.000 claims abstract description 57
- 230000015556 catabolic process Effects 0.000 claims abstract description 23
- 238000009792 diffusion process Methods 0.000 claims description 120
- 230000015572 biosynthetic process Effects 0.000 claims description 46
- 238000000926 separation method Methods 0.000 claims description 7
- 238000000638 solvent extraction Methods 0.000 claims description 3
- 230000003071 parasitic effect Effects 0.000 abstract description 56
- 239000000758 substrate Substances 0.000 description 22
- 230000001681 protective effect Effects 0.000 description 19
- 230000006378 damage Effects 0.000 description 10
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 8
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H01L29/735—Lateral transistors
Landscapes
- 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)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Bipolar Integrated Circuits (AREA)
- Bipolar Transistors (AREA)
Abstract
【解決手段】本発明の半導体装置では、分離領域2とN型の埋込層7、9を利用し、保護素子1が形成される。保護素子1内のPN接合領域11は分離領域2のP型の埋込層2A側に形成され、PN接合領域11の接合耐圧は保護される素子内のPN接合領域の接合耐圧よりも低い。この構造により、寄生Tr1のオン電流I1は保護素子1へと流れ込み、素子は保護される。また、寄生Tr1のオン電流I1が、エピタキシャル層4の深部側を流れることで、保護素子1の熱破壊が防止される。
【選択図】図1
Description
2 分離領域
2A P型の埋込層
3 P型の単結晶シリコン基板
4 エピタキシャル層
7 N型の埋込層
9 N型の埋込層
11 PN接合領域
Claims (4)
- 半導体層と、
前記半導体層を複数の素子形成領域に区分し、少なくとも2つの拡散層が連結して形成される分離領域と、
前記素子形成領域の1つの領域に形成される半導体素子と、
前記1つの領域内に形成され、前記1つの領域を区画する分離領域と第1のPN接合領域を形成する第1の拡散層と、
前記1つの領域を区画する分離領域の近傍に配置される第2の拡散層とを有し、
前記第1のPN接合領域の接合耐圧は、前記半導体素子の表面側に形成される第2のPN接合領域の接合耐圧より小さく、前記第1の拡散層は、前記分離領域の前記半導体層の深部側の拡散層と連結し、
前記第2の拡散層は、前記分離領域の深部側の拡散層と連結し、第3のPN接合領域を形成し、前記第3のPN接合領域は、前記第1のPN接合領域に連動して電流経路となることを特徴する半導体装置。 - 前記第1のPN接合領域は、前記1つの領域の周囲に一環状に形成されることを特徴とする請求項1に記載の半導体装置。
- 前記分離領域は、2つの拡散層が連結して形成され、前記第1のPN接合領域と前記第3のPN接合領域とは、前記半導体層深部側に位置する前記拡散層に形成されることを特徴とする請求項1または請求項2に記載の半導体装置。
- 前記半導体素子は、バイポーラトランジスタ、MOSトランジスタまたは拡散抵抗体であることを特徴とする請求項1から請求項3のいずれか1項に記載の半導体装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009016230A JP2010177317A (ja) | 2009-01-28 | 2009-01-28 | 半導体装置 |
US12/692,341 US8237241B2 (en) | 2009-01-28 | 2010-01-22 | Semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009016230A JP2010177317A (ja) | 2009-01-28 | 2009-01-28 | 半導体装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2010177317A true JP2010177317A (ja) | 2010-08-12 |
Family
ID=42353489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009016230A Pending JP2010177317A (ja) | 2009-01-28 | 2009-01-28 | 半導体装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US8237241B2 (ja) |
JP (1) | JP2010177317A (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3407385B1 (en) * | 2017-05-23 | 2024-03-13 | NXP USA, Inc. | Semiconductor device suitable for electrostatic discharge (esd) protection |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58168255A (ja) * | 1982-03-30 | 1983-10-04 | Fujitsu Ltd | 半導体装置 |
JPH0316256A (ja) * | 1989-06-14 | 1991-01-24 | Toshiba Corp | 半導体装置の製造方法 |
JP2007095827A (ja) * | 2005-09-27 | 2007-04-12 | Sanyo Electric Co Ltd | 半導体装置及びその製造方法 |
JP2007317869A (ja) * | 2006-05-25 | 2007-12-06 | Sanyo Electric Co Ltd | 半導体装置及びその製造方法 |
-
2009
- 2009-01-28 JP JP2009016230A patent/JP2010177317A/ja active Pending
-
2010
- 2010-01-22 US US12/692,341 patent/US8237241B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58168255A (ja) * | 1982-03-30 | 1983-10-04 | Fujitsu Ltd | 半導体装置 |
JPH0316256A (ja) * | 1989-06-14 | 1991-01-24 | Toshiba Corp | 半導体装置の製造方法 |
JP2007095827A (ja) * | 2005-09-27 | 2007-04-12 | Sanyo Electric Co Ltd | 半導体装置及びその製造方法 |
JP2007317869A (ja) * | 2006-05-25 | 2007-12-06 | Sanyo Electric Co Ltd | 半導体装置及びその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US8237241B2 (en) | 2012-08-07 |
US20100187653A1 (en) | 2010-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4927340B2 (ja) | 半導体装置 | |
JP5108250B2 (ja) | 半導体装置及びその製造方法 | |
JP5296450B2 (ja) | 半導体装置 | |
JP2013008715A (ja) | 半導体装置 | |
JP5285373B2 (ja) | 半導体装置 | |
JP5525736B2 (ja) | 半導体装置及びその製造方法 | |
JP2006237224A (ja) | 半導体装置 | |
JP6296535B2 (ja) | ダイオードおよびそれを含む信号出力回路 | |
JP2008021863A (ja) | 半導体装置及び保護回路 | |
JP2010182727A (ja) | 半導体装置 | |
JP2009277963A (ja) | 半導体装置 | |
JP6011136B2 (ja) | 半導体装置 | |
JP5243773B2 (ja) | 静電気保護用半導体装置 | |
JP2005045016A (ja) | 半導体集積回路 | |
JP3169844B2 (ja) | 半導体装置 | |
JP2008085186A (ja) | 半導体装置 | |
JP2009038130A (ja) | 横型mosトランジスタ及びこれを用いた半導体装置 | |
JP2009032968A (ja) | 半導体装置及びその製造方法 | |
JP5022013B2 (ja) | 静電気保護用半導体装置および自動車用複合ic | |
JP2010177317A (ja) | 半導体装置 | |
JP2012174740A (ja) | 半導体集積回路のesd保護回路およびそのesd保護素子 | |
JP5498822B2 (ja) | 半導体装置 | |
JP2005108980A (ja) | 半導体装置 | |
JP2008182122A (ja) | 半導体装置 | |
JP5122248B2 (ja) | 半導体集積回路 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20110613 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20120110 |
|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20130218 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130408 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20140401 |