公开(公告)号：US11594618B2

公开(公告)日：2023-02-28

申请号：US17113512

申请日：2020-12-07

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Chia-Cheng Chen ,  Huicheng Chang ,  Liang-Yin Chen

IPC: H01L21/02 ,  H01L29/66 ,  H01L29/78 ,  H01L29/10

Abstract: A finFET device and methods of forming a finFET device are provided. The device includes a fin and a capping layer over the fin. The device also includes a gate stack over the fin, the gate stack including a gate electrode and a gate dielectric. The gate dielectric extends along sidewalls of the capping layer. The device further includes a gate spacer adjacent to sidewalls of the gate electrode, the capping layer being interposed between the gate spacer and the fin.

公开(公告)号：US20220415719A1

公开(公告)日：2022-12-29

申请号：US17459164

申请日：2021-08-27

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Chia-Cheng Chen ,  Chih-Kai Yang ,  Liang-Yin Chen ,  Huicheng Chang ,  Yee-Chia Yeo

IPC: H01L21/66 ,  H01L21/265 ,  H01L23/544 ,  H01J37/317 ,  H01J37/20 ,  H01J37/304 ,  H01J37/22

Abstract: In an embodiment, a method includes: placing a wafer on an implanter platen, the wafer including alignment marks; measuring a position of the wafer by measuring positions of the alignment marks with one or more cameras; determining an angular displacement between the position of the wafer and a reference position of the wafer; and rotating the implanter platen by the angular displacement.

公开(公告)号：US20220406655A1

公开(公告)日：2022-12-22

申请号：US17675462

申请日：2022-02-18

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Kuo-Ju Chen ,  Shih-Hsiang Chiu ,  Meng-Han Chou ,  Su-Hao Liu ,  Liang-Yin Chen ,  Huicheng Chang ,  Yee-Chia Yeo

IPC: H01L21/768 ,  H01L21/3115

Abstract: Semiconductor devices and methods of manufacturing semiconductor devices are described herein. A method includes implanting neutral elements into a dielectric layer, an etch stop layer, and a metal feature, the dielectric layer being disposed over the etch stop layer and the metal feature being disposed through the dielectric layer and the etch stop layer. The method further includes using a germanium gas as a source for the neutral elements and using a beam current above 6.75 mA to implant the neutral elements.

公开(公告)号：US20220406592A1

公开(公告)日：2022-12-22

申请号：US17651851

申请日：2022-02-21

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Chun-Hung Wu ,  Chia-Cheng Chen ,  Liang-Yin Chen ,  Huicheng Chang ,  Yee-Chia Yeo

IPC: H01L21/027 ,  H01L21/311 ,  H01L21/3213

Abstract: A method of forming a semiconductor device includes forming a photoresist over a target layer, where the target layer includes a substrate. The photoresist is patterned to form a patterned photoresist. Scum remains between portions of the patterned photoresist. The substrate is tilted relative to a direction of propagation of an ion beam. An ion treatment is performed on the scum. A pattern of the patterned photoresist is transferred to the target layer.

公开(公告)号：US11532516B2

公开(公告)日：2022-12-20

申请号：US17227831

申请日：2021-04-12

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Su-Hao Liu ,  Wen-Yen Chen ,  Tz-Shian Chen ,  Cheng-Jung Sung ,  Li-Ting Wang ,  Liang-Yin Chen ,  Huicheng Chang ,  Yee-Chia Yeo ,  Syun-Ming Jang

IPC: H01L21/768 ,  H01L21/02 ,  H01L29/78 ,  H01L29/66 ,  H01L29/08

Abstract: A method includes forming a gate stack over a first semiconductor region, removing a second portion of the first semiconductor region on a side of the gate stack to form a recess, growing a second semiconductor region starting from the recess, implanting the second semiconductor region with an impurity, and performing a melting laser anneal on the second semiconductor region. A first portion of the second semiconductor region is molten during the melting laser anneal, and a second and a third portion of the second semiconductor region on opposite sides of the first portion are un-molten.

公开(公告)号：US20220367686A1

公开(公告)日：2022-11-17

申请号：US17529394

申请日：2021-11-18

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Yu-Chang Lin ,  Liang-Yin Chen ,  Chun-Feng Nieh ,  Huicheng Chang ,  Yee-Chia Yeo

IPC: H01L29/66 ,  H01L21/8234 ,  H01L21/324 ,  H01L29/78 ,  H01L29/08

Abstract: A semiconductor device and a method of forming the same are provided. The method includes forming a semiconductor fin extending from a substrate. A dummy gate stack is formed over the semiconductor fin. The dummy gate stack extends along sidewalls and a top surface of the semiconductor fin. The semiconductor fin is patterned to form a recess in the semiconductor fin. A semiconductor material is deposited in the recess. An implantation process is performed on the semiconductor material. The implantation process includes implanting first implants into the semiconductor material and implanting second implants into the semiconductor material. The first implants have a first implantation energy. The second implants have a second implantation energy different from the first implantation energy.

公开(公告)号：US20220293448A1

公开(公告)日：2022-09-15

申请号：US17199980

申请日：2021-03-12

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Chia-Cheng Chen ,  Chih-Kai Yang ,  Liang-Yin Chen ,  Huicheng Chang ,  Yee-Chia Yeo

IPC: H01L21/68 ,  H01L23/544 ,  G06T7/73 ,  G06T1/00 ,  G06T7/00

Abstract: A method of correcting a misalignment of a wafer on a wafer holder and an apparatus for performing the same are disclosed. In an embodiment, a semiconductor alignment apparatus includes a wafer stage; a wafer holder over the wafer stage; a first position detector configured to detect an alignment of a wafer over the wafer holder in a first direction; a second position detector configured to detect an alignment of the wafer over the wafer holder in a second direction; and a rotational detector configured to detect a rotational alignment of the wafer over the wafer holder.

公开(公告)号：US11380782B2

公开(公告)日：2022-07-05

申请号：US16996665

申请日：2020-08-18

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Su-Hao Liu ,  Huicheng Chang ,  Chien-Tai Chan ,  Liang-Yin Chen ,  Yee-Chia Yeo ,  Szu-Ying Chen

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

Abstract: The present disclosure describes a semiconductor structure and a method for forming the same. The semiconductor structure can include a substrate, a first fin structure with a first height and a first width formed over the substrate, a second fin structure with a second height and a second width formed over the substrate, and an insulating stack formed over lower portions of the first and second fin structures. The second height can be substantially equal to the first height and the second width can be greater than the first width. A top surface of the insulating stack can be below top surfaces of the first and second fin structures.

公开(公告)号：US20220181451A1

公开(公告)日：2022-06-09

申请号：US17651843

申请日：2022-02-21

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Tsan-Chun Wang ,  Su-Hao Liu ,  Liang-Yin Chen ,  Huicheng Chang ,  Yee-Chia Yeo

IPC: H01L29/40 ,  H01L29/45 ,  H01L21/3115 ,  H01L21/033 ,  H01L21/285

Abstract: A method of forming a semiconductor device includes forming a source/drain region and a gate electrode adjacent the source/drain region, forming a hard mask over the gate electrode, forming a bottom mask over the source/drain region, wherein the gate electrode is exposed, and performing a nitridation process on the hard mask over the gate electrode. The bottom mask remains over the source/drain region during the nitridation process and is removed after the nitridation. The method further includes forming a silicide over the source/drain region after removing the bottom mask.

公开(公告)号：US20220122884A1

公开(公告)日：2022-04-21

申请号：US17646024

申请日：2021-12-27

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Li-Chieh Wu ,  Tang-Kuei Chang ,  Kuo-Hsiu Wei ,  Kei-Wei Chen ,  Ying-Lang Wang ,  Su-Hao Liu ,  Kuo-Ju Chen ,  Liang-Yin Chen ,  Huicheng Chang ,  Ting-Kui Chang ,  Chia Hsuan Lee

IPC: H01L21/768 ,  H01L23/522

Abstract: The present disclosure provides methods for forming conductive features in a dielectric layer without using adhesion layers or barrier layers and devices formed thereby. In some embodiments, a structure comprising a dielectric layer over a substrate, and a conductive feature disposed through the dielectric layer. The dielectric layer has a lower surface near the substrate and a top surface distal from the substrate. The conductive feature is in direct contact with the dielectric layer, and the dielectric layer comprises an implant species. A concentration of the implant species in the dielectric layer has a peak concentration proximate the top surface of the dielectric layer, and the concentration of the implant species decreases from the peak concentration in a direction towards the lower surface of the dielectric layer.