JP2006156963A - 様々な動作電圧の集積回路を隔離する半導体構造 - Google Patents
様々な動作電圧の集積回路を隔離する半導体構造 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 66
- 238000002955 isolation Methods 0.000 claims abstract description 139
- 239000000758 substrate Substances 0.000 claims abstract description 39
- 150000002500 ions Chemical class 0.000 claims description 28
- 238000002513 implantation Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000005468 ion implantation Methods 0.000 description 5
- 238000000151 deposition Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001684 chronic effect Effects 0.000 description 1
- 231100000762 chronic effect Toxicity 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
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- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/761—PN junctions
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
- H01L21/76232—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials of trenches having a shape other than rectangular or V-shape, e.g. rounded corners, oblique or rounded trench walls
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- 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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- H01L27/085—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 including only semiconductor components of a single kind including field-effect components only
- H01L27/088—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 including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate
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- 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
- H01L27/08—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 including only semiconductor components of a single kind
- H01L27/085—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 including only semiconductor components of a single kind including field-effect components only
- H01L27/088—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 including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate
- H01L27/092—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 including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate complementary MIS field-effect transistors
- H01L27/0921—Means for preventing a bipolar, e.g. thyristor, action between the different transistor regions, e.g. Latchup prevention
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Abstract
【解決手段】半導体基板上に位置して第1の回路領域204および第2の回路領域208を囲む隔離リング234を含む。埋め込み隔離層は連続的に延伸して、半導体基板の第1の回路領域204および第2の回路領域208を通る。埋め込み隔離層と隔離リングとを交接することにより、第1の回路領域204および第2の回路領域208は、半導体基板のバックサイドバイアスから隔離される。そしてイオン強化された隔離層により、第1の回路領域204にある第1のウェルおよび第2の回路領域208にある第2のウェルを隔離リングおよび埋め込み隔離層から隔離することにより、第1の回路領域204および第2の回路領域208の第1のウェルおよび第2のウェルと埋め込み隔離層との間にパンチスルーが発生することを防ぐ。
【選択図】図2
Description
図2は、本発明の好適な一実施形態による半導体デバイス構造200を示す断面図である。この半導体デバイス構造200は、同じP型半導体基板210上にある様々な動作電圧のデバイスを隔離する隔離構造を備えているが、それが占有するレイアウト面積は小さい。異なる電圧下で動作する第1の電圧回路領域204および第2の電圧回路領域208は、図1の電圧回路領域に類似する。隔離構造は、第1の電圧回路領域204に位置するN型埋め込み層202および第2の電圧回路領域208に位置するN型埋め込み層206を含む。N型埋め込み層206およびN型埋め込み層202は連続して延伸し、第1の電圧回路領域204および第2の電圧回路領域208を通る。N型隔離リング212はN型埋め込み層202、206へ垂直に延伸して交接する。N型ウェルなどの隔離壁211は、第1の電圧回路領域204と第2の電圧回路領域208との間に形成され、N型埋め込み層202、206まで垂直に延伸して交接する。N型隔離リング212の左翼および隔離壁211は、第1の電圧回路領域204の隔離N型カップを提供する。第1の電圧回路領域204中において、NチャンネルMOSトランジスタのP+型ウェルコンタクト214はP型ウェル216上に形成される。PチャンネルMOSトランジスタのN+型ウェルコンタクト218はN型ウェル220上に形成される。N型隔離リング212の右翼および隔離壁211は、第2の電圧回路領域208の隔離N型カップを提供する。N型隔離リング212の右翼および隔離壁211は、第2の電圧回路領域208の隔離N型カップを提供する。第2の電圧回路領域208中において、NチャンネルMOSトランジスタのP+型ウェルコンタクト226はP型ウェル228上に形成される。PチャンネルMOSトランジスタのN+型ウェルコンタクト230はN型ウェル232上に形成される。このように第1の電圧回路領域204と第2の電圧回路領域208との間を介するN型隔離壁211の一本のラインは、図1の三本のラインを代替することができるため、レイアウト面積を大幅に節減することができる。
Claims (9)
- 異なる電圧で動作する第1の回路領域と第2の回路領域とを隔離し、隔離リングおよび埋め込み隔離層を備えた半導体構造であって、
前記隔離リングは、半導体基板上に形成されて前記第1の回路領域および前記第2の回路領域を囲み、
前記埋め込み隔離層は、連続的に延伸して前記半導体基板中の前記第1の回路領域および前記第2の回路領域を通って、前記埋め込み隔離層と前記隔離リングとが交接し、前記第1の回路領域および前記第2の回路領域が前記半導体基板のバックサイドバイアスから隔離されることを特徴とする半導体構造。 - 前記第1の回路領域および前記第2の回路領域の複数のデバイスを、前記隔離リングおよび前記埋め込み隔離層から隔離するイオン強化隔離層をさらに備えることを特徴とする請求項1記載の半導体構造。
- 前記イオン強化隔離層は、複数のイオンが1.0〜3.0MeVの注入エネルギーで注入されることを特徴とする請求項2記載の半導体構造。
- 前記イオン強化隔離層のイオン濃度は、1×1012原子/cm2〜5×1014原子/cm2の間であることを特徴とする請求項2記載の半導体構造。
- 前記イオン強化隔離層は、前記隔離リングおよび前記埋め込み隔離層と反対の極性を有することを特徴とする請求項2記載の半導体構造。
- 前記半導体基板は、前記隔離リングおよび前記埋め込み隔離層と反対の極性を有することを特徴とする請求項1記載の半導体構造。
- 前記隔離リングは、正電源に接続することを特徴とする請求項1記載の半導体構造。
- 前記第1の回路領域と前記第2の回路領域との間に形成され、前記埋め込み隔離層と交接する隔離壁をさらに備えることを特徴とする請求項1記載の半導体構造。
- 前記隔離リングを囲む防護リングをさらに備えることを特徴とする請求項1記載の半導体構造。
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US63130104P | 2004-11-29 | 2004-11-29 | |
US11/136,810 US7196392B2 (en) | 2004-11-29 | 2005-05-24 | Semiconductor structure for isolating integrated circuits of various operation voltages |
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JP2006156963A true JP2006156963A (ja) | 2006-06-15 |
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US (1) | US7196392B2 (ja) |
JP (1) | JP2006156963A (ja) |
KR (1) | KR100671606B1 (ja) |
CN (1) | CN1783493A (ja) |
TW (1) | TWI286364B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2015001926A1 (ja) * | 2013-07-05 | 2015-01-08 | 富士電機株式会社 | 半導体装置 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5465919B2 (ja) * | 2009-05-14 | 2014-04-09 | ルネサスエレクトロニクス株式会社 | 半導体集積装置 |
JP2011166153A (ja) * | 2010-02-12 | 2011-08-25 | Samsung Electronics Co Ltd | ガードリング構造を有する半導体デバイス、ディスプレイドライバ回路、及びディスプレイ装置 |
US8154078B2 (en) * | 2010-02-17 | 2012-04-10 | Vanguard International Semiconductor Corporation | Semiconductor structure and fabrication method thereof |
US8536674B2 (en) * | 2010-12-20 | 2013-09-17 | General Electric Company | Integrated circuit and method of fabricating same |
CN102569356A (zh) * | 2010-12-29 | 2012-07-11 | 三星电子株式会社 | 具有保护环的半导体装置、显示驱动器电路和显示设备 |
JP5739826B2 (ja) * | 2012-01-23 | 2015-06-24 | 株式会社東芝 | 半導体装置 |
CN104659023A (zh) * | 2013-11-19 | 2015-05-27 | 中芯国际集成电路制造(上海)有限公司 | 半导体结构及其形成方法 |
CN113141192B (zh) * | 2021-04-27 | 2024-01-02 | 芯朴科技(上海)有限公司 | 射频芯片结构和增加射频芯片隔离度的方法 |
CN116259587B (zh) * | 2023-01-05 | 2024-07-16 | 中国移动通信有限公司研究院 | 一种隔离结构及芯片 |
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JPH09199612A (ja) * | 1995-12-30 | 1997-07-31 | Lg Semicon Co Ltd | 半導体素子の三重ウェル形成方法 |
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JP2001250870A (ja) * | 2000-03-03 | 2001-09-14 | Matsushita Electric Ind Co Ltd | 半導体装置 |
JP2004193452A (ja) * | 2002-12-13 | 2004-07-08 | Matsushita Electric Ind Co Ltd | 半導体装置およびその製造方法 |
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US5882977A (en) * | 1997-10-03 | 1999-03-16 | International Business Machines Corporation | Method of forming a self-aligned, sub-minimum isolation ring |
JP2002246551A (ja) | 2001-02-15 | 2002-08-30 | Hitachi Ltd | 半導体装置 |
US6380590B1 (en) | 2001-02-22 | 2002-04-30 | Advanced Micro Devices, Inc. | SOI chip having multiple threshold voltage MOSFETs by using multiple channel materials and method of fabricating same |
US6855985B2 (en) * | 2002-09-29 | 2005-02-15 | Advanced Analogic Technologies, Inc. | Modular bipolar-CMOS-DMOS analog integrated circuit & power transistor technology |
KR100489802B1 (ko) * | 2002-12-18 | 2005-05-16 | 한국전자통신연구원 | 고전압 및 저전압 소자의 구조와 그 제조 방법 |
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- 2005-05-24 US US11/136,810 patent/US7196392B2/en active Active
- 2005-09-13 TW TW094131532A patent/TWI286364B/zh active
- 2005-09-28 CN CNA2005101056024A patent/CN1783493A/zh active Pending
- 2005-10-06 KR KR1020050093707A patent/KR100671606B1/ko active IP Right Grant
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Patent Citations (5)
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JPH09199612A (ja) * | 1995-12-30 | 1997-07-31 | Lg Semicon Co Ltd | 半導体素子の三重ウェル形成方法 |
JPH11289060A (ja) * | 1998-03-31 | 1999-10-19 | Nec Corp | 半導体集積回路装置の製造方法 |
JP2000164729A (ja) * | 1998-11-25 | 2000-06-16 | Hitachi Ltd | 半導体装置およびその製造方法 |
JP2001250870A (ja) * | 2000-03-03 | 2001-09-14 | Matsushita Electric Ind Co Ltd | 半導体装置 |
JP2004193452A (ja) * | 2002-12-13 | 2004-07-08 | Matsushita Electric Ind Co Ltd | 半導体装置およびその製造方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015001926A1 (ja) * | 2013-07-05 | 2015-01-08 | 富士電機株式会社 | 半導体装置 |
JP5991435B2 (ja) * | 2013-07-05 | 2016-09-14 | 富士電機株式会社 | 半導体装置 |
US9548299B2 (en) | 2013-07-05 | 2017-01-17 | Fuji Electric Co., Ltd. | Semiconductor device |
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KR100671606B1 (ko) | 2007-01-19 |
US20060113571A1 (en) | 2006-06-01 |
TWI286364B (en) | 2007-09-01 |
TW200618167A (en) | 2006-06-01 |
KR20060092960A (ko) | 2006-08-23 |
CN1783493A (zh) | 2006-06-07 |
US7196392B2 (en) | 2007-03-27 |
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