JP2007521640A - ノード・キャパシタンスを増加した半導体メモリ・デバイス - Google Patents
ノード・キャパシタンスを増加した半導体メモリ・デバイス Download PDFInfo
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- JP2007521640A JP2007521640A JP2005512855A JP2005512855A JP2007521640A JP 2007521640 A JP2007521640 A JP 2007521640A JP 2005512855 A JP2005512855 A JP 2005512855A JP 2005512855 A JP2005512855 A JP 2005512855A JP 2007521640 A JP2007521640 A JP 2007521640A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 36
- 230000000694 effects Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 239000003989 dielectric material Substances 0.000 description 7
- 238000005530 etching Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B10/00—Static random access memory [SRAM] devices
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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
- H01L27/12—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 other than a semiconductor body, e.g. an insulating body
- H01L27/1203—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 other than a semiconductor body, e.g. an insulating body the substrate comprising an insulating body on a semiconductor body, e.g. SOI
- H01L27/1211—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 other than a semiconductor body, e.g. an insulating body the substrate comprising an insulating body on a semiconductor body, e.g. SOI combined with field-effect transistors with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/84—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being other than a semiconductor body, e.g. being an insulating body
- H01L21/845—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being other than a semiconductor body, e.g. being an insulating body including field-effect transistors with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66787—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel
- H01L29/66795—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
-
- 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
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/785—Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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Abstract
【解決手段】 集積回路半導体メモリ・デバイス(100)は、ゲートから基板へのキャパシタンスを増加し、それにより、ソフト・エラー率を低減するために、ストレージ・トランジスタのゲートの下に基板(112)の一部分(130)には存在しないBOX層として特徴付けられた第1の誘電体層(116)を有する。第1の誘電体層とは異なる特性を有する第2の誘電体層(132)は、基板のその部分(130)を少なくとも部分的に覆う。このデバイスは、フィン(122)と、ゲートとフィンとの間のゲート誘電体層(124、126)とを含むFinFETデバイスにすることができ、第2の誘電体層はゲート誘電体層より漏れが少ない。
【選択図】 図4
Description
Claims (11)
- 基板(112)と、
前記基板の第1の部分(114a)を覆い、前記基板の第2の部分(130)には存在しない第1の誘電体層(116)と、
前記第1の誘電体層とは異なる特性を有し、前記基板の前記第2の部分(130)を少なくとも部分的に覆う第2の誘電体層(132)と、
前記第1の誘電体層上の第1のドープ領域内に形成されたソース領域(118)と、
前記第1の誘電体層上の第2のドープ領域内に形成されたドレイン領域(120)と、
前記第2の誘電体層の上で前記第1のドープ領域と前記第2のドープ領域との間に形成されたゲート(128)と、
を有し、
前記第2の誘電体層の前記特性により、前記基板上の前記第1の誘電体層の上に形成されたゲートの理論キャパシタンスより大きい、前記基板に対する前記ゲートのゲート・キャパシタンスが提供される、集積回路半導体メモリ・デバイス(100)。 - 前記デバイスがRAMである、請求項1に記載のデバイス。
- 前記デバイスがSRAMである、請求項1に記載のデバイス。
- 前記デバイスがFETを含む、請求項1に記載のデバイス。
- 前記FETがFinFETである、請求項4に記載のデバイス。
- 前記第1の誘電体層が埋め込み酸化物層(116)であり、前記第2の誘電体層が前記埋め込み酸化物層より低い絶縁効果を提供する薄い酸化物層(132)であり、前記ゲートが前記基板に容量結合される、請求項1または請求項5に記載のデバイス。
- 前記FinFETのフィン(122)が前記埋め込み酸化物層の上に形成される、請求項6に記載のデバイス。
- 前記デバイスが、フィン(122)と、前記ゲートと前記フィンとの間のゲート誘電体層(124、126)とをさらに有し、前記第2の誘電体層が前記ゲート誘電体層より漏れが少ない、請求項1または請求項5に記載のデバイス。
- 前記基板が、上位レベルの上向きの第1の表面(314a)と、下位レベルの上向きの第2の表面(314b)とを有し、前記第1の誘電体層が前記第1の表面上に形成された誘電体層であり、前記第2の誘電体層が前記第2の表面上に形成された誘電体層であり、前記FinFETのフィン(322)が埋め込み層の上に形成される、請求項1または請求項5に記載のデバイス。
- 前記第1の誘電体層が埋め込み酸化物層(316)であり、前記第2の誘電体層が薄い酸化物層(332a、332b)である、請求項9に記載のデバイス。
- 前記第1の誘電体層が埋め込み酸化物層(116)であり、前記第2の誘電体層が薄い酸化物層(132)である、請求項8に記載のデバイス。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2003/039026 WO2005064682A1 (en) | 2003-12-08 | 2003-12-08 | Semiconductor memory device with increased node capacitance |
Publications (2)
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JP2007521640A true JP2007521640A (ja) | 2007-08-02 |
JP4911976B2 JP4911976B2 (ja) | 2012-04-04 |
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JP2005512855A Expired - Fee Related JP4911976B2 (ja) | 2003-12-08 | 2003-12-08 | ノード・キャパシタンスを増加した半導体メモリ・デバイス |
Country Status (7)
Country | Link |
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US (1) | US7352025B2 (ja) |
EP (1) | EP1692724B1 (ja) |
JP (1) | JP4911976B2 (ja) |
KR (1) | KR100935988B1 (ja) |
CN (1) | CN100546042C (ja) |
AU (1) | AU2003297751A1 (ja) |
WO (1) | WO2005064682A1 (ja) |
Cited By (1)
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---|---|---|---|---|
JP2013140999A (ja) * | 2007-07-18 | 2013-07-18 | Intel Corp | バルク基板上に作製される分離トライゲートトランジスタ |
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JP2006049627A (ja) * | 2004-08-05 | 2006-02-16 | Toshiba Corp | 半導体装置及びその製造方法 |
KR100555569B1 (ko) | 2004-08-06 | 2006-03-03 | 삼성전자주식회사 | 절연막에 의해 제한된 채널영역을 갖는 반도체 소자 및 그제조방법 |
US7470951B2 (en) * | 2005-01-31 | 2008-12-30 | Freescale Semiconductor, Inc. | Hybrid-FET and its application as SRAM |
KR100645065B1 (ko) * | 2005-06-23 | 2006-11-10 | 삼성전자주식회사 | 핀 전계 효과 트랜지스터와 이를 구비하는 비휘발성 메모리장치 및 그 형성 방법 |
US8513066B2 (en) * | 2005-10-25 | 2013-08-20 | Freescale Semiconductor, Inc. | Method of making an inverted-T channel transistor |
US7452768B2 (en) | 2005-10-25 | 2008-11-18 | Freescale Semiconductor, Inc. | Multiple device types including an inverted-T channel transistor and method therefor |
US7323373B2 (en) * | 2006-01-25 | 2008-01-29 | Freescale Semiconductor, Inc. | Method of forming a semiconductor device with decreased undercutting of semiconductor material |
US8912602B2 (en) * | 2009-04-14 | 2014-12-16 | Taiwan Semiconductor Manufacturing Company, Ltd. | FinFETs and methods for forming the same |
US8158500B2 (en) | 2010-01-27 | 2012-04-17 | International Business Machines Corporation | Field effect transistors (FETS) and methods of manufacture |
US8778744B2 (en) * | 2011-06-24 | 2014-07-15 | Institute of Microelectronics, Chinese Academy of Sciences | Method for manufacturing semiconductor field effect transistor |
CN102842507B (zh) * | 2011-06-24 | 2015-08-19 | 中国科学院微电子研究所 | 半导体场效应晶体管的制备方法 |
US9087743B2 (en) * | 2013-11-20 | 2015-07-21 | Globalfoundries Inc. | Silicon-on-insulator finFET with bulk source and drain |
US9741810B2 (en) * | 2014-07-30 | 2017-08-22 | Taiwan Semiconductor Manufacturing Company, Ltd. | Strained channel of gate-all-around transistor |
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2003
- 2003-12-08 US US10/596,029 patent/US7352025B2/en not_active Expired - Lifetime
- 2003-12-08 JP JP2005512855A patent/JP4911976B2/ja not_active Expired - Fee Related
- 2003-12-08 EP EP03796818A patent/EP1692724B1/en not_active Expired - Lifetime
- 2003-12-08 AU AU2003297751A patent/AU2003297751A1/en not_active Abandoned
- 2003-12-08 CN CNB200380110735XA patent/CN100546042C/zh not_active Expired - Fee Related
- 2003-12-08 WO PCT/US2003/039026 patent/WO2005064682A1/en active Application Filing
- 2003-12-08 KR KR1020067010819A patent/KR100935988B1/ko not_active IP Right Cessation
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Publication number | Publication date |
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AU2003297751A1 (en) | 2005-07-21 |
EP1692724A1 (en) | 2006-08-23 |
JP4911976B2 (ja) | 2012-04-04 |
US7352025B2 (en) | 2008-04-01 |
CN1879219A (zh) | 2006-12-13 |
KR100935988B1 (ko) | 2010-01-08 |
WO2005064682A1 (en) | 2005-07-14 |
US20070085134A1 (en) | 2007-04-19 |
EP1692724A4 (en) | 2007-11-21 |
CN100546042C (zh) | 2009-09-30 |
KR20060121124A (ko) | 2006-11-28 |
EP1692724B1 (en) | 2012-06-13 |
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