JP7427012B2 - フィン形ブリッジ領域によって結合された垂直に積み重ねられたナノシートを有するトランジスタ・チャネル - Google Patents
フィン形ブリッジ領域によって結合された垂直に積み重ねられたナノシートを有するトランジスタ・チャネル Download PDFInfo
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- JP7427012B2 JP7427012B2 JP2021547785A JP2021547785A JP7427012B2 JP 7427012 B2 JP7427012 B2 JP 7427012B2 JP 2021547785 A JP2021547785 A JP 2021547785A JP 2021547785 A JP2021547785 A JP 2021547785A JP 7427012 B2 JP7427012 B2 JP 7427012B2
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Images
Classifications
-
- 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
- H01L29/66545—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using a dummy, i.e. replacement gate in a process wherein at least a part of the final gate is self aligned to the dummy gate
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- H—ELECTRICITY
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- Condensed Matter Physics & Semiconductors (AREA)
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- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Plasma & Fusion (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Thin Film Transistor (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Description
図2A~15Bは、本発明の1つまたは複数の実施形態による処理操作後のX-FET半導体構造体の断面図を示す。
図16A~19Cは本発明の1つまたは複数の実施形態による処理操作後のGAA X-FET半導体構造体の断面図を示す。
図20~28は本発明の1つまたは複数の実施形態による処理操作後のX-FET半導体構造体の断面図を示す。
図29A~31Bは本発明の1つまたは複数の実施形態による処理操作後のX-FET半導体構造体の断面図を示す。
図32A~35Bは本発明の1つまたは複数の実施形態による処理操作後のX-FET半導体構造体の断面図を示す。
Claims (5)
- 半導体デバイスを形成するための方法であって、前記方法が、
第1の半導体層、第2の半導体層、および前記第1の半導体層と前記第2の半導体層との間のフィン形ブリッジ層を備える非平面チャネル領域を形成すること
を含み、前記非平面チャネル領域を形成することが、
基板の上にナノシート・スタックを形成すること、
前記ナノシート・スタックの部分を除去することによってトレンチを形成すること、および
前記トレンチの中に第3の半導体層を形成すること
を含み、
前記第1の半導体層、前記第2の半導体層および前記フィン形ブリッジ層の外表面が、前記非平面チャネル領域の有効チャネル幅を規定する
方法。 - 前記ナノシート・スタックの第1の部分上に第1のフィン・スペーサを形成すること、
前記ナノシート・スタックの第2の部分上に第2のフィン・スペーサを形成すること、および
前記ナノシート・スタックの側壁上に浅いトレンチ分離を形成すること
をさらに含み、
前記第1のフィン・スペーサが前記浅いトレンチ分離の側壁上にある、
請求項1に記載の方法。 - 前記ナノシート・スタックと前記基板との間に底部犠牲層を形成すること、
前記底部犠牲層を除去して空洞を画定すること、および
前記空洞にスペーサ材料を充填して底部スペーサを形成すること
をさらに含む、請求項1に記載の方法。 - 前記ナノシート・スタックが第1の犠牲層を含む、請求項1に記載の方法。
- 前記第1の犠牲層の側壁を凹ませること、
凹ませた前記第1の犠牲層の前記側壁上に内側スペーサを形成すること、
前記第1の犠牲層を除去すること、および
前記ナノシート・スタックの上にゲートを形成すること
をさらに含む、請求項4に記載の方法。
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US16/286,733 | 2019-02-27 | ||
US16/286,733 US10903369B2 (en) | 2019-02-27 | 2019-02-27 | Transistor channel having vertically stacked nanosheets coupled by fin-shaped bridge regions |
PCT/IB2020/051528 WO2020174354A1 (en) | 2019-02-27 | 2020-02-24 | Transistor channel having vertically stacked nanosheets coupled by fin-shaped bridge regions |
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US (1) | US10903369B2 (ja) |
JP (2) | JP7427012B2 (ja) |
CN (1) | CN113491014B (ja) |
DE (1) | DE112020000199B4 (ja) |
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WO (1) | WO2020174354A1 (ja) |
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US9620590B1 (en) * | 2016-09-20 | 2017-04-11 | International Business Machines Corporation | Nanosheet channel-to-source and drain isolation |
US10957799B2 (en) | 2019-02-27 | 2021-03-23 | International Business Machines Corporation | Transistor channel having vertically stacked nanosheets coupled by fin-shaped bridge regions |
US11257681B2 (en) * | 2019-07-17 | 2022-02-22 | International Business Machines Corporation | Using a same mask for direct print and self-aligned double patterning of nanosheets |
US20210202696A1 (en) * | 2019-12-26 | 2021-07-01 | Intel Corporation | Gate-all-around integrated circuit structures having removed substrate |
CN114765217A (zh) * | 2021-01-11 | 2022-07-19 | 联华电子股份有限公司 | 半导体装置 |
US20230012819A1 (en) * | 2021-07-14 | 2023-01-19 | Applied Materials, Inc. | REDUCED STRAIN Si/SiGe HETEROEPITAXY STACKS FOR 3D DRAM |
US20230163196A1 (en) * | 2021-11-24 | 2023-05-25 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor device with flexible sheet structure |
US20230178623A1 (en) * | 2021-12-08 | 2023-06-08 | International Business Machines Corporation | Gate all-around device with through-stack nanosheet 2d channel |
WO2023133704A1 (en) * | 2022-01-11 | 2023-07-20 | Huawei Technologies Co., Ltd. | Field-effect transistor device comprising n-doped fet component and p-doped fet component |
EP4300563A1 (en) * | 2022-06-29 | 2024-01-03 | Huawei Technologies Co., Ltd. | A multi-gate hybrid-channel field effect transistor |
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