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公开(公告)号:US12300717B2
公开(公告)日:2025-05-13
申请号:US17670740
申请日:2022-02-14
Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
Inventor: Yu-Chang Lin , Chun-Hung Wu , Liang-Yin Chen , Huicheng Chang , Yee-Chia Yeo
IPC: H01L29/06 , H01L21/8234 , H01L29/786
Abstract: A method includes depositing a multi-layer stack over a semiconductor substrate, the multi-layer stack including a plurality of sacrificial layers that alternate with a plurality of channel layers; forming a first recess in the multi-layer stack; forming first spacers on sidewalls of the sacrificial layers in the first recess; depositing a first semiconductor material in the first recess, where the first semiconductor material is undoped, where the first semiconductor material is in physical contact with a sidewall and a bottom surface of at least one of the first spacers; implanting dopants in the first semiconductor material, where after implanting dopants the first semiconductor material has a gradient-doped profile; and forming an epitaxial source/drain region in the first recess over the first semiconductor material, where a material of the epitaxial source/drain region is different from the first semiconductor material.
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公开(公告)号:US12218196B2
公开(公告)日:2025-02-04
申请号:US17670924
申请日:2022-02-14
Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
Inventor: Yu-Chang Lin , Chun-Hung Wu , Liang-Yin Chen , Huicheng Chang , Yee-Chia Yeo
IPC: H01L29/06 , H01L21/8234 , H01L29/423 , H01L29/66 , H01L29/786
Abstract: A method includes depositing a multi-layer stack on a semiconductor substrate, the multi-layer stack including a plurality of sacrificial layers that alternate with a plurality of channel layers; forming a dummy gate on the multi-layer stack; forming a first spacer on a sidewall of the dummy gate; performing a first implantation process to form a first doped region, the first implantation process having a first implant energy and a first implant dose; performing a second implantation process to form a second doped region, where the first doped region and the second doped region are in a portion of the channel layers uncovered by the first spacer and the dummy gate, the second implantation process having a second implant energy and a second implant dose, where the second implant energy is greater than the first implant energy, and where the first implant dose is different from the second implant dose.
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公开(公告)号:US20230061485A1
公开(公告)日:2023-03-02
申请号:US17463000
申请日:2021-08-31
Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
Inventor: Chia-Cheng Chen , Chun-Hung Wu , Liang-Yin Chen , Huicheng Chang , Yee-Chia Yeo , Chun-Yen Chang , Chih-Kai Yang , Yu-Tien Shen , Ya Hui Chang
IPC: H01L21/027 , H01L21/311 , H01L21/768
Abstract: A method for forming a semiconductor device is provided. In some embodiments, the method includes forming a target layer over a semiconductor substrate, forming a carbon-rich hard masking layer over the target layer, patterning features in the carbon-rich hard masking layer using an etching process, performing a directional ion beam trimming process on the features patterned in the carbon-rich hard masking layer, and patterning the target layer using the carbon-rich hard masking layer as a mask.
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公开(公告)号:US09026955B1
公开(公告)日:2015-05-05
申请号:US14051568
申请日:2013-10-11
Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
Inventor: Hung-Chun Wang , Ming-Hui Chih , Ping-Chieh Wu , Chun-Hung Wu , Feng-Ju Chang , Cheng-Kun Tsai , Wen-Chun Huang , Ru-Gun Liu
IPC: G06F17/50
CPC classification number: G03F1/36 , G03F7/70433 , H01L21/3212 , H01L23/522 , H01L2924/0002 , H01L2924/00
Abstract: The present disclosure relates to a method of integrated chip (IC) design pattern correction that reduces pattern correction cycle time by separately correcting main feature shapes and dummy shapes of the IC design, and an associated apparatus. In some embodiments, the method is performed by forming an IC design having a plurality of main feature shapes. A plurality of dummy shapes are added to the IC design to improve a process window of the IC design. The plurality of main feature shapes are corrected using a first pattern correction process. One or more of the plurality of dummy shapes are subsequently corrected using a second pattern correction process separate from the first pattern correction process. By separately correcting dummy shapes and main feature shapes, the dummy shapes can be subjected to a different pattern correction process having lower time/resource demands, thereby reducing the pattern correction cycle time.
Abstract translation: 本公开涉及通过分开校正IC设计的主要特征形状和虚拟形状以及相关联的装置来减少图案校正周期时间的集成芯片(IC)设计图案校正的方法。 在一些实施例中,通过形成具有多个主要特征形状的IC设计来执行该方法。 将多个虚拟形状添加到IC设计中以改善IC设计的处理窗口。 使用第一图案校正处理来校正多个主要特征形状。 随后使用与第一图案校正处理分开的第二图案校正处理来校正多个虚拟形状中的一个或多个。 通过单独地校正虚拟形状和主要特征形状,可以对虚拟形状进行具有较低时间/资源需求的不同的图案校正处理,从而减少图案校正周期时间。
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公开(公告)号:US11776810B2
公开(公告)日:2023-10-03
申请号:US17463000
申请日:2021-08-31
Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
Inventor: Chia-Cheng Chen , Chun-Hung Wu , Liang-Yin Chen , Huicheng Chang , Yee-Chia Yeo , Chun-Yen Chang , Chih-Kai Yang , Yu-Tien Shen , Ya Hui Chang
IPC: H01L21/027 , H01L21/768 , H01L21/311
CPC classification number: H01L21/0274 , H01L21/31116 , H01L21/31144 , H01L21/76802
Abstract: A method for forming a semiconductor device is provided. In some embodiments, the method includes forming a target layer over a semiconductor substrate, forming a carbon-rich hard masking layer over the target layer, patterning features in the carbon-rich hard masking layer using an etching process, performing a directional ion beam trimming process on the features patterned in the carbon-rich hard masking layer, and patterning the target layer using the carbon-rich hard masking layer as a mask.
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公开(公告)号:US20220310785A1
公开(公告)日:2022-09-29
申请号:US17566316
申请日:2021-12-30
Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
Inventor: Chun-Hung Wu , Chia-Ling Chung , Su-Hao Liu , Liang-Yin Chen , Shun-Wu Lin , Huicheng Chang , Yee-Chia Yeo
IPC: H01L29/06 , H01L29/786 , H01L21/8234 , H01L21/425
Abstract: A method of forming a semiconductor device including performing an ion implantation on a substrate and etching the substrate and semiconductor devices formed by the same are disclosed. In an embodiment, a method includes forming a transistor on a first side of a substrate; performing an ion implantation on a second side of the substrate opposite the first side; after performing the ion implantation, etching the substrate to remove the substrate and form a first recess; and forming a dielectric layer in the first recess.
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公开(公告)号:US11450741B2
公开(公告)日:2022-09-20
申请号:US17201041
申请日:2021-03-15
Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
Inventor: Su-Hao Liu , Huicheng Chang , Chia-Cheng Chen , Liang-Yin Chen , Kuo-Ju Chen , Chun-Hung Wu , Chang-Miao Liu , Huai-Tei Yang , Lun-Kuang Tan , Wei-Ming You
IPC: H01L21/8234 , H01L29/08 , H01L29/167 , H01L29/78 , H01L21/02 , H01L21/285 , H01L29/66 , H01L21/265 , H01L29/417
Abstract: The present disclosure relates generally to doping for conductive features in a semiconductor device. In an example, a structure includes an active region of a transistor. The active region includes a source/drain region, and the source/drain region is defined at least in part by a first dopant having a first dopant concentration. The source/drain region further includes a second dopant with a concentration profile having a consistent concentration from a surface of the source/drain region into a depth of the source/drain region. The consistent concentration is greater than the first dopant concentration. The structure further includes a conductive feature contacting the source/drain region at the surface of the source/drain region.
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公开(公告)号:US10049178B2
公开(公告)日:2018-08-14
申请号:US15170026
申请日:2016-06-01
Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
Inventor: Hung-Chun Wang , Ming-Hui Chih , Ping-Chieh Wu , Chun-Hung Wu , Wen-Hao Liu , Cheng-Hsuan Huang , Cheng-Kun Tsai , Wen-Chun Huang , Ru-Gun Liu
Abstract: The present disclosure relates to a method of improving pattern density with a low OPC (optical proximity correction) cycle time, and an associated apparatus. In some embodiments, the method is performed by performing an initial data preparation process on an IC design including a graphical representation of a layout used to fabricate an integrated chip. The initial data preparation process is performed by using a data preparation element to generate a modified IC design having modified shapes that are modified forms of shapes within the IC design. One or more low-pattern-density areas of the modified IC design are identified using a local density checking element. One or more dummy shapes are added within the one or more low-pattern-density areas using a dummy shape insertion element. The one or more dummy shapes are separated from the modified shapes by a non-zero space.
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公开(公告)号:US20230261048A1
公开(公告)日:2023-08-17
申请号:US17670924
申请日:2022-02-14
Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
Inventor: Yu-Chang Lin , Chun-Hung Wu , Liang-Yin Chen , Huicheng Chang , Yee-Chia Yeo
IPC: H01L29/06 , H01L29/423 , H01L29/786 , H01L29/66 , H01L21/8234
CPC classification number: H01L29/0665 , H01L29/42392 , H01L29/78696 , H01L29/78618 , H01L29/66742 , H01L21/823412 , H01L21/823418 , H01L21/823468 , H01L29/66545
Abstract: A method includes depositing a multi-layer stack on a semiconductor substrate, the multi-layer stack including a plurality of sacrificial layers that alternate with a plurality of channel layers; forming a dummy gate on the multi-layer stack; forming a first spacer on a sidewall of the dummy gate; performing a first implantation process to form a first doped region, the first implantation process having a first implant energy and a first implant dose; performing a second implantation process to form a second doped region, where the first doped region and the second doped region are in a portion of the channel layers uncovered by the first spacer and the dummy gate, the second implantation process having a second implant energy and a second implant dose, where the second implant energy is greater than the first implant energy, and where the first implant dose is different from the second implant dose.
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公开(公告)号:US20230042196A1
公开(公告)日:2023-02-09
申请号:US17670740
申请日:2022-02-14
Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
Inventor: Yu-Chang Lin , Chun-Hung Wu , Liang-Yin Chen , Huicheng Chang , Yee-Chia Yeo
IPC: H01L29/06 , H01L29/786 , H01L21/8234
Abstract: A method includes depositing a multi-layer stack over a semiconductor substrate, the multi-layer stack including a plurality of sacrificial layers that alternate with a plurality of channel layers; forming a first recess in the multi-layer stack; forming first spacers on sidewalls of the sacrificial layers in the first recess; depositing a first semiconductor material in the first recess, where the first semiconductor material is undoped, where the first semiconductor material is in physical contact with a sidewall and a bottom surface of at least one of the first spacers; implanting dopants in the first semiconductor material, where after implanting dopants the first semiconductor material has a gradient-doped profile; and forming an epitaxial source/drain region in the first recess over the first semiconductor material, where a material of the epitaxial source/drain region is different from the first semiconductor material.
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