JP4426833B2 - 二重ゲート型電界効果トランジスタおよびその製造方法 - Google Patents
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- H—ELECTRICITY
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- 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
- H01L29/66893—Unipolar field-effect transistors with a PN junction gate, i.e. JFET
- H01L29/66916—Unipolar field-effect transistors with a PN junction gate, i.e. JFET with a PN heterojunction gate
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- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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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
- H01L29/66227—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
- H01L29/66742—Thin film unipolar transistors
- H01L29/66772—Monocristalline silicon transistors on insulating substrates, e.g. quartz substrates
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- 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
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78603—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the insulating substrate or support
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- 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
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78645—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with multiple gate
- H01L29/78648—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with multiple gate arranged on opposing sides of the channel
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- 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
- H01L29/80—Field effect transistors with field effect produced by a PN or other rectifying junction gate, i.e. potential-jump barrier
- H01L29/802—Field effect transistors with field effect produced by a PN or other rectifying junction gate, i.e. potential-jump barrier with heterojunction gate, e.g. transistors with semiconductor layer acting as gate insulating layer, MIS-like transistors
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- Insulated Gate Type Field-Effect Transistor (AREA)
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Description
二重ゲート型電界効果トランジスタ(DGFET)を製造する方法であって、
少なくともバック・ゲート、前記バック・ゲート上に設けられたバック・ゲート誘電体、前記バック・ゲート誘電体上に設けられたチャネル層、前記チャネル層上に設けられたフロント・ゲート誘電体、および前記フロント・ゲート誘電体上に設けられたフロント・ゲートを備えた積層二重ゲート構造体を準備する工程と、
前記積層二重ゲート構造体の前記フロント・ゲートをパターニングする工程と、
前記パターニングしたフロント・ゲートの露出した側壁に側壁スペーサを形成する工程と、
前記バック・ゲートの一部にキャリア空乏ゾーンを形成する工程であって、前記キャリア空乏ゾーンが、前記バック・ゲートを前記フロント・ゲートに整合させる、工程と
を備えた
方法。
二重ゲート型電界効果トランジスタ(DGFET)であって、
バック・ゲート上に設けられたバック・ゲート誘電体と、
前記バック・ゲート誘電体上に設けられたチャネル層と、
前記チャネル層上に設けられたフロント・ゲート誘電体と、
前記チャネル層の一部の上に設けらパターニングされたフロント・ゲートと
を備え、
前記バック・ゲートが、前記バック・ゲートを前記フロント・ゲートに整合させる、キャリア空乏ゾーンを備えている
二重ゲート型電界効果トランジスタ。
12 下部絶縁体
14 バック・ゲート
16 バック・ゲート誘電体
18 チャネル層
20 フロント・ゲート誘電体
22 フロント・ゲート
24 マスク
26 絶縁スペーサ
28 延長領域
30 ソース/ドレイン領域
32 キャリア空乏ゾーン
50 分離領域
Claims (14)
- 二重ゲート型電界効果トランジスタ(DGFET)を製造する方法であって、
基板、前記基板上に設けられた下部絶縁体、前記下部絶縁体上に設けられたバック・ゲート、前記バック・ゲート上に設けられたバック・ゲート誘電体、前記バック・ゲート誘電体上に設けられたチャネル層、前記チャネル層、前記バック・ゲート誘電体および前記バック・ゲートを貫通して前記下部絶縁体に達するトレンチ分離領域、前記チャネル層上に設けられたフロント・ゲート誘電体、および前記フロント・ゲート誘電体上に設けられたフロント・ゲートを備えた積層二重ゲート構造体を準備する工程と、
前記積層二重ゲート構造体の前記フロント・ゲートをパターニングする工程と、
前記パターニングしたフロント・ゲートの露出した側壁に側壁スペーサを形成する工程と、
前記チャネル層内であって、前記フロント・ゲートの両側から前記トレンチ分離領域に至る領域にソース/ドレイン領域を形成する工程と、
前記フロント・ゲート誘電体を介するイオン打ち込みによって、前記バック・ゲートと前記バック・ゲート誘電体との界面の一部にキャリア空乏ゾーンを形成する工程であって、前記キャリア空乏ゾーンは前記ソース/ドレイン領域と整合し、前記バック・ゲートを前記フロント・ゲートに整合させる、工程とを備え、
前記キャリア空乏ゾーンはアモルファス層もしくはバブル層からなる方法。 - 前記フロント・ゲート誘電体を介するイオン打ち込みによって、前記ソース/ドレイン領域に接続するソース/ドレイン延長部を形成する、請求項1に記載の方法。
- 前記ソース/ドレイン領域は前記フロント・ゲートおよび前記側壁スペーサをマスクにして前記フロント・ゲート誘電体を介するイオン打ち込みによって形成される、請求項1に記載の方法。
- 前記アモルファス層は前記イオン打ち込みにおいて、N、F、Ar、Si、またはGeから選択されるイオンを用いる、請求項1に記載の方法。
- 前記イオンがアモルファス層成長鈍化元素から成る、請求項4に記載の方法。
- 前記バブル層は前記イオン打ち込みにおいて、水素、Ar、He、Ne、Kr、またはXeから選択されるイオンを用いる、請求項1に記載の方法。
- さらにアニール工程を備えた、請求項1に記載の方法。
- 前記積層二重ゲート構造体をボンディング工程および薄化工程によって形成する、請求項1に記載の方法。
- 二重ゲート型電界効果トランジスタ(DGFET)であって、
基板と、
前記基板上に設けられた下部絶縁体と、
前記下部絶縁体上に設けられたバック・ゲートと、
前記バック・ゲート上に設けられたバック・ゲート誘電体と、
前記バック・ゲート誘電体上に設けられたチャネル層と、
前記チャネル層、前記バック・ゲート誘電体および前記バック・ゲートを貫通して前記下部絶縁体に達するトレンチ分離領域と、
前記チャネル層上に設けられたフロント・ゲート誘電体と、
前記チャネル層の一部の上に設けられパターニングされたフロント・ゲートと
前記チャネル層内であって、前記フロント・ゲートの両側から前記トレンチ分離領域に至る領域に設けられたソース/ドレイン領域と、
を備え、
前記バック・ゲートが前記フロント・ゲート誘電体を介するイオン打ち込みによって形成されるキャリア空乏ゾーンを前記バック・ゲート誘電体との界面に有し、前記キャリア空乏ゾーンはアモルファス層もしくはバブル層からなり、前記ソース/ドレイン領域と整合し前記バック・ゲートを前記フロント・ゲートに整合させる、二重ゲート型電界効果トランジスタ。 - さらに、前記パターニングされたフロント・ゲートの側壁に設けられた絶縁スペーサを備えた、請求項9に記載の二重ゲート型電界効果トランジスタ。
- さらに、前記ソース/ドレイン領域に接続するソース/ドレイン延長部を備えた、請求項9に記載の二重ゲート型電界効果トランジスタ。
- 前記チャネル領域がSi、SiGe、SiC、SiGeC、InAs、GaAs、InP、他のIII−V族化合物半導体、またはこれらの組み合わせから成る、請求項9に記載の二重ゲート型電界効果トランジスタ。
- 前記バック・ゲート誘電体および前記フロント・ゲート誘電体が酸化物から成る、請求項9に記載の二重ゲート型電界効果トランジスタ。
- 前記バック・ゲートおよび前記フロント・ゲートがポリシリコンから成る、請求項9に記載の二重ゲート型電界効果トランジスタ。
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US10/328,234 US6833569B2 (en) | 2002-12-23 | 2002-12-23 | Self-aligned planar double-gate process by amorphization |
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JP4426833B2 true JP4426833B2 (ja) | 2010-03-03 |
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US (1) | US6833569B2 (ja) |
JP (1) | JP4426833B2 (ja) |
CN (1) | CN1282233C (ja) |
TW (1) | TWI250639B (ja) |
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US7710771B2 (en) * | 2002-11-20 | 2010-05-04 | The Regents Of The University Of California | Method and apparatus for capacitorless double-gate storage |
US7205185B2 (en) * | 2003-09-15 | 2007-04-17 | International Busniess Machines Corporation | Self-aligned planar double-gate process by self-aligned oxidation |
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TWI248681B (en) * | 2004-03-29 | 2006-02-01 | Imec Inter Uni Micro Electr | Method for fabricating self-aligned source and drain contacts in a double gate FET with controlled manufacturing of a thin Si or non-Si channel |
CN100342550C (zh) * | 2004-10-15 | 2007-10-10 | 中国科学院上海微系统与信息技术研究所 | 一种双栅金属氧化物半导体晶体管的结构及其制备方法 |
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CN102544097B (zh) * | 2010-12-31 | 2015-01-07 | 中国科学院微电子研究所 | 半导体结构及其制造方法 |
CN102867750B (zh) * | 2011-07-07 | 2015-03-25 | 中国科学院微电子研究所 | Mosfet及其制造方法 |
CN102569091B (zh) * | 2011-08-29 | 2014-07-23 | 上海华力微电子有限公司 | 一种后栅极单晶体管动态随机存储器的制备方法 |
CN102631957B (zh) * | 2012-04-13 | 2014-06-25 | 北京大学 | 带有栅压调制功能的超薄封装微流体系统及其制备方法 |
US20150214339A1 (en) * | 2014-01-24 | 2015-07-30 | Varian Semiconductor Equipment Associates, Inc. | Techniques for ion implantation of narrow semiconductor structures |
CN104702226A (zh) * | 2015-03-31 | 2015-06-10 | 宜确半导体(苏州)有限公司 | 一种改进的共源共栅射频功率放大器 |
DE102018127447B4 (de) * | 2017-11-30 | 2021-05-06 | Taiwan Semiconductor Manufacturing Co., Ltd. | Anti-Reflexionsbeschichtung durch Ionenimplantation für lithographische Strukturierung |
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JPH1131743A (ja) * | 1997-05-14 | 1999-02-02 | Sony Corp | 半導体装置及びその製造方法 |
US6004837A (en) | 1998-02-18 | 1999-12-21 | International Business Machines Corporation | Dual-gate SOI transistor |
US6074920A (en) * | 1998-08-26 | 2000-06-13 | Texas Instruments Incorporated | Self-aligned implant under transistor gate |
US6365465B1 (en) | 1999-03-19 | 2002-04-02 | International Business Machines Corporation | Self-aligned double-gate MOSFET by selective epitaxy and silicon wafer bonding techniques |
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US6372559B1 (en) | 2000-11-09 | 2002-04-16 | International Business Machines Corporation | Method for self-aligned vertical double-gate MOSFET |
US6396108B1 (en) | 2000-11-13 | 2002-05-28 | Advanced Micro Devices, Inc. | Self-aligned double gate silicon-on-insulator (SOI) device |
US6686630B2 (en) | 2001-02-07 | 2004-02-03 | International Business Machines Corporation | Damascene double-gate MOSFET structure and its fabrication method |
US6593192B2 (en) | 2001-04-27 | 2003-07-15 | Micron Technology, Inc. | Method of forming a dual-gated semiconductor-on-insulator device |
US6611023B1 (en) | 2001-05-01 | 2003-08-26 | Advanced Micro Devices, Inc. | Field effect transistor with self alligned double gate and method of forming same |
US6433609B1 (en) | 2001-11-19 | 2002-08-13 | International Business Machines Corporation | Double-gate low power SOI active clamp network for single power supply and multiple power supply applications |
US6610576B2 (en) | 2001-12-13 | 2003-08-26 | International Business Machines Corporation | Method for forming asymmetric dual gate transistor |
US6580132B1 (en) | 2002-04-10 | 2003-06-17 | International Business Machines Corporation | Damascene double-gate FET |
JP2003332582A (ja) | 2002-05-13 | 2003-11-21 | Toshiba Corp | 半導体装置及びその製造方法 |
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TWI250639B (en) | 2006-03-01 |
US6833569B2 (en) | 2004-12-21 |
CN1282233C (zh) | 2006-10-25 |
US20040121549A1 (en) | 2004-06-24 |
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