公开(公告)号：US11652141B2

公开(公告)日：2023-05-16

申请号：US17656258

申请日：2022-03-24

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Cheng-Yi Peng ,  Hung-Li Chiang ,  Yu-Lin Yang ,  Chih Chieh Yeh ,  Yee-Chia Yeo ,  Chi-Wen Liu

IPC: H01L21/82 ,  H01L29/06 ,  H01L29/66 ,  H01L29/775 ,  H01L21/8238 ,  H01L21/308 ,  H01L29/786 ,  H01L21/306 ,  H01L21/84 ,  H01L27/092 ,  H01L27/12 ,  H01L29/423 ,  H01L21/3065

CPC classification number: H01L29/0673 ,  H01L21/3081 ,  H01L21/30604 ,  H01L21/823807 ,  H01L21/823821 ,  H01L21/845 ,  H01L27/0924 ,  H01L27/1211 ,  H01L29/0649 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/66772 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/78696 ,  H01L21/3065

Abstract: Transistor structures and methods of forming transistor structures are provided. The transistor structures include alternating layers of a first epitaxial material and a second epitaxial material. In some embodiments, one of the first epitaxial material and the second epitaxial material may be removed for one of an n-type or p-type transistor. A bottommost layer of the first epitaxial material and the second epitaxial material may be be removed, and sidewalls of one of the first epitaxial material and the second epitaxial material may be indented or recessed.

公开(公告)号：US11605635B2

公开(公告)日：2023-03-14

申请号：US17186293

申请日：2021-02-26

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Szu-Ying Chen ,  Sen-Hong Syue ,  Li-Ting Wang ,  Huicheng Chang ,  Yee-Chia Yeo

IPC: H01L29/94 ,  H01L29/76 ,  H01L31/113 ,  H01L27/092 ,  H01L21/8234 ,  H01L29/78 ,  H01L29/66 ,  H01L29/06

Abstract: In an embodiment, a method includes forming a plurality of fins adjacent to a substrate, the plurality of fins comprising a first fin, a second fin, and a third fin; forming a first insulation material adjacent to the plurality of fins; reducing a thickness of the first insulation material; after reducing the thickness of the first insulation material, forming a second insulation material adjacent to the first insulation material and the plurality of fins; and recessing the first insulation material and the second insulation material to form a first shallow trench isolation (STI) region.

公开(公告)号：US11600534B2

公开(公告)日：2023-03-07

申请号：US17218459

申请日：2021-03-31

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Wei-Min Liu ,  Hsueh-Chang Sung ,  Li-Li Su ,  Yee-Chia Yeo

IPC: H01L21/8238 ,  H01L27/092 ,  H01L29/08 ,  H01L29/49 ,  H01L29/78 ,  H01L29/66

Abstract: A semiconductor device includes a first device region and a second device region. The first device region includes a first source/drain region extending from a substrate and a first and a second pair of spacers. The first source/drain region extends between the first pair of spacers and the second pair of spacers. The first pair of spacers and the second pair of spacers have a first height. The second device region includes a second and a third source/drain region extending from the substrate and a third and a fourth pair of spacers. The third source/drain region is separate from the second source/drain region. The second source/drain region extends between the third pair of spacers. The third source/drain region extends between the fourth pair of spacers. The third pair of spacers and the fourth pair of spacers have a second height greater than the first height.

公开(公告)号：US20230068434A1

公开(公告)日：2023-03-02

申请号：US17458950

申请日：2021-08-27

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Chien-I Kuo ,  Wei Hao Lu ,  Li-Li Su ,  Yee-Chia Yeo

IPC: H01L29/08 ,  H01L21/8234 ,  H01L29/66 ,  H01L29/78 ,  H01L29/06

Abstract: A method of forming a semiconductor includes forming a first recess in a first semiconductor fin protruding from a substrate and forming a second recess in a second semiconductor fin protruding from the substrate first semiconductor fin and forming a source/drain region in the first recess and the second recess. Forming the source/drain region includes forming a first portion of a first layer in the first recess and forming a second portion of the first layer in the second recess, forming a second layer on the first layer by flowing a first precursor, and forming a third layer on the second layer by flowing a second precursor, the third layer being a single continuous material.

公开(公告)号：US20230067346A1

公开(公告)日：2023-03-02

申请号：US17412768

申请日：2021-08-26

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Han-De Chen ,  Yun Chen Teng ,  Chen-Fong Tsai ,  Jyh-Cherng Sheu ,  Huicheng Chang ,  Yee-Chia Yeo

IPC: H01L23/00 ,  H01L21/683

Abstract: In an embodiment, a wafer bonding system includes a chamber, a gas inlet and a gas outlet configured to control a pressure of the chamber to be in a range from 1×10−2 mbar to 1520 torr, a first wafer chuck having a first surface to support a first wafer, and a second wafer chuck having a second surface to support a second wafer, the second surface being opposite the first surface, the second wafer chuck and the first wafer chuck being movable relative to each other, wherein the second surface that supports the second wafer is divided into zones, wherein a vacuum pressure of each zone is controlled independently of other zones.

公开(公告)号：US20230065620A1

公开(公告)日：2023-03-02

申请号：US17412652

申请日：2021-08-26

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Wei-Min Liu ,  Li-Li Su ,  Yee-Chia Yeo

IPC: H01L27/088 ,  H01L29/78 ,  H01L29/66 ,  H01L21/8234

Abstract: An embodiment includes a device including a first fin extending from a substrate. The device also includes a first gate stack over and along sidewalls of the first fin. The device also includes a first gate spacer disposed along a sidewall of the first gate stack. The device also includes and a first source/drain region in the first fin and adjacent the first gate spacer, the first source/drain region including a first carbon-containing buffer layer on the first fin. The device also includes and a first epitaxial structure on the first carbon-containing buffer layer.

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.

公开(公告)号：US20230038762A1

公开(公告)日：2023-02-09

申请号：US17650112

申请日：2022-02-07

Applicant: Taiwan Semiconductor Manufacturing Co.,Ltd.

Inventor： Szu-Ying Chen ,  Po-Kang Ho ,  Sen-Hong Syue ,  Huicheng Chang ,  Yee-Chia Yeo

IPC: H01L21/8238 ,  H01L27/092 ,  H01L21/02 ,  H01L21/311 ,  H01L21/762

Abstract: A device includes a first semiconductor fin extending from a substrate, a second semiconductor fin extending from the substrate, a dielectric fin over the substrate, a first isolation region between the first semiconductor fin and the dielectric fin, and a second isolation region between the first semiconductor fin and the second semiconductor fin. The first semiconductor fin is disposed between the second semiconductor fin and the dielectric fin. The first isolation region has a first concentration of an impurity. The second isolation region has a second concentration of the impurity. The second concentration is less than the first concentration. A top surface of the second isolation region is disposed closer to the substrate than a top surface of the first isolation region.

公开(公告)号：US20230016619A1

公开(公告)日：2023-01-19

申请号：US17684876

申请日：2022-03-02

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Tien-Shun Chang ,  Yu-Kang Liu ,  Su-Hao Liu ,  Huicheng Chang ,  Yee-Chia Yeo

IPC: H01J37/317 ,  H01J37/304

Abstract: A method includes moving a plurality of sensors along a translation path with respect to an ion beam, acquiring sensor signals produced by the plurality of sensors, converting the acquired sensor signals into a data set representative of a two-dimensional (2D) profile of the ion beam, generating a plurality of first one-dimensional (1D) profiles of the ion beam from the data set, generating a plurality of second 1D profiles of the ion beam by spatially inverting each of the plurality of first 1D profiles, generating a plurality of third 1D profiles of the ion beam by superposing first current density values of each of the plurality of first 1D profiles with second current density values of a corresponding one of the plurality of second 1D profiles and determining whether to continue an implantation process with the ion beam in accordance with the plurality of third 1D profiles.

公开(公告)号：US20220415715A1

公开(公告)日：2022-12-29

申请号：US17490922

申请日：2021-09-30

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Jeng-Wei Yu ,  Yi-Fang Pai ,  Pei-Ren Jeng ,  Chii-Horng Li ,  Yee-Chia Yeo

IPC: H01L21/8234 ,  H01L29/78 ,  H01L27/088 ,  H01L29/66

Abstract: A method of forming a fin field-effect transistor device includes: forming a gate structure over a first fin and a second fin; forming, on a first side of the gate structure, a first recess and a second recess in the first fin and the second fin, respectively; and forming a source/drain region in the first and second recesses, which includes: forming a barrier layer in the first and second recesses; forming a first epitaxial material over the barrier layer, where a first portion of the first epitaxial material over the first fin is spaced apart from a second portion of the first epitaxial material over the second fin; forming a second epitaxial material over the first and second portions of the first epitaxial material, where the second epitaxial material extends continuously from the first fin to the second fin; and forming a capping layer over the second epitaxial material.