公开(公告)号：US09263579B2

公开(公告)日：2016-02-16

申请号：US14723447

申请日：2015-05-27

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Ming-Hua Chang ,  Chun-Yuan Wu ,  Chin-Cheng Chien ,  Tien-Wei Yu ,  Yu-Shu Lin ,  Szu-Hao Lai

IPC: H01L29/78 ,  H01L21/02 ,  H01L21/30 ,  H01L29/66 ,  H01L29/165 ,  H01L21/306 ,  H01L21/324 ,  H01L29/08 ,  H01L29/161

CPC classification number: H01L29/7848 ,  H01L21/0245 ,  H01L21/02532 ,  H01L21/0262 ,  H01L21/02639 ,  H01L21/3003 ,  H01L21/30604 ,  H01L21/324 ,  H01L29/0847 ,  H01L29/161 ,  H01L29/165 ,  H01L29/66636

Abstract: A semiconductor process includes the following steps. Two gates are formed on a substrate. A recess is formed in the substrate beside the gates. A surface modification process is performed on a surface of the recess to modify the shape of the recess and change the contents of the surface.

公开(公告)号：US20150170916A1

公开(公告)日：2015-06-18

申请号：US14108369

申请日：2013-12-17

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Tien-Wei Yu ,  Chun-Jen Chen ,  Tsung-Mu Yang ,  Ming-Hua Chang ,  Yu-Shu Lin ,  Chin-Cheng Chien

IPC: H01L21/02

CPC classification number: H01L21/02664 ,  H01L21/0243 ,  H01L21/02532 ,  H01L21/02639 ,  H01L29/66795 ,  H01L29/7848

Abstract: A semiconductor process includes the steps of providing a substrate with fin structures formed thereon, performing an epitaxy process to grow an epitaxial structure on each fin structure, forming a conformal cap layer on each epitaxial structure, where adjacent conformal cap layers contact each other, and performing an etching process to separate contacting conformal cap layers.

Abstract translation: 一种半导体工艺包括以下步骤：提供具有在其上形成的鳍结构的衬底，执行外延工艺以在每个鳍结构上生长外延结构，在每个外延结构上形成共形盖层，其中相邻的保形盖层彼此接触，以及 执行蚀刻工艺以分离接触的保形盖层。

公开(公告)号：US20140091395A1

公开(公告)日：2014-04-03

申请号：US13633094

申请日：2012-10-01

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chih-Chien Liu ,  Tzu-Chin Wu ,  Yu-Shu Lin ,  Jei-Ming Chen ,  Wen-Yi Teng

IPC: H01L21/336 ,  H01L27/088 ,  H01L21/28

CPC classification number: H01L29/7843 ,  H01L21/02164 ,  H01L21/324 ,  H01L21/76828 ,  H01L21/76832 ,  H01L21/76834 ,  H01L21/823412 ,  H01L21/823807 ,  H01L21/823864 ,  H01L29/6653

Abstract: A method for fabricating a transistor device including the following processes. First, a semiconductor substrate having a first transistor region is provided. A low temperature deposition process is carried out to form a first tensile stress layer on a transistor within the first transistor region, wherein a temperature of the low temperature deposition process is lower than 300 degree Celsius (° C.). Then, a high temperature annealing process is performed, wherein a temperature of the high temperature annealing process is at least 150° C. higher than a temperature of the low temperature deposition process. Finally, a second tensile stress layer is formed on the first tensile stress layer, wherein the first tensile stress layer has a lower tensile stress than the second tensile stress layer.

Abstract translation: 一种晶体管器件的制造方法，包括以下工序。 首先，提供具有第一晶体管区域的半导体衬底。 进行低温沉积工艺以在第一晶体管区域内的晶体管上形成第一拉伸应力层，其中低温沉积工艺的温度低于300摄氏度（℃）。 然后，进行高温退火处理，其中高温退火工艺的温度比低温沉积工艺的温度高至少150℃。 最后，在第一拉伸应力层上形成第二拉伸应力层，其中第一拉伸应力层具有比第二拉伸应力层低的拉伸应力。

公开(公告)号：US12021134B2

公开(公告)日：2024-06-25

申请号：US18073539

申请日：2022-12-01

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Wei-Chih Chuang ,  Chia-Jong Liu ,  Kuang-Hsiu Chen ,  Chung-Ting Huang ,  Chi-Hsuan Tang ,  Kai-Hsiang Wang ,  Bing-Yang Jiang ,  Yu-Lin Cheng ,  Chun-Jen Chen ,  Yu-Shu Lin ,  Jhong-Yi Huang ,  Chao-Nan Chen ,  Guan-Ying Wu

IPC: H01L29/66 ,  H01L29/423

CPC classification number: H01L29/6656 ,  H01L29/42364

Abstract: A semiconductor device includes a gate structure on a substrate, a first spacer on a sidewall of the gate structure, a second spacer on a sidewall of the first spacer, a third spacer on a sidewall of the second spacer, and first and second stacks of an epitaxial layer and a cap layer respectively disposed at first and second sides of the gate structure. Preferably, a part of the second spacer comprises an I-shape, the cap layer includes a planar top surface and an inclined sidewall, the cap layer contacts the second spacer and the third spacer directly, and the cap layer includes a vertical sidewall connected to the inclined sidewall.

公开(公告)号：US20230097129A1

公开(公告)日：2023-03-30

申请号：US18073539

申请日：2022-12-01

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Wei-Chih Chuang ,  Chia-Jong Liu ,  Kuang-Hsiu Chen ,  Chung-Ting Huang ,  Chi-Hsuan Tang ,  Kai-Hsiang Wang ,  Bing-Yang Jiang ,  Yu-Lin Cheng ,  Chun-Jen Chen ,  Yu-Shu Lin ,  Jhong-Yi Huang ,  Chao-Nan Chen ,  Guan-Ying Wu

IPC: H01L29/66 ,  H01L29/423

Abstract: A method for fabricating semiconductor device includes the steps of: forming a gate structure on a substrate; forming a first spacer and a second spacer around the gate structure; forming a recess adjacent to two sides of the second spacer; performing a cleaning process to trim the second spacer for forming a void between the first spacer and the substrate; and forming an epitaxial layer in the recess.

公开(公告)号：US11587835B2

公开(公告)日：2023-02-21

申请号：US17337446

申请日：2021-06-03

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chun-Jen Chen ,  Tien-I Wu ,  Yu-Shu Lin

IPC: H01L21/8234 ,  H01L21/324 ,  H01L27/088 ,  H01L29/06 ,  H01L29/10 ,  H01L29/78

Abstract: A method for fabricating semiconductor device includes the steps of providing a substrate having a first region and a second region, forming a first fin-shaped structure on the first region and a second fin-shaped structure on the second region, and forming a shallow trench isolation (STI) around the first fin-shaped structure and the second fin-shaped structure. Preferably, the first fin-shaped structure and the second fin-shaped structure comprise different radius of curvature and a center of curvature of the first fin-shaped structure is lower than a top surface of the STI and a center of curvature of the second fin-shaped structure is higher than the top surface of the STI.

公开(公告)号：US20230033820A1

公开(公告)日：2023-02-02

申请号：US17956840

申请日：2022-09-30

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chi-Hsuan Tang ,  Chung-Ting Huang ,  Bo-Shiun Chen ,  Chun-Jen Chen ,  Yu-Shu Lin

IPC: H01L29/78 ,  H01L29/66 ,  H01L21/02 ,  H01L29/06

Abstract: A method for fabricating a semiconductor device includes the steps of forming a gate structure on a substrate, forming an epitaxial layer adjacent to the gate structure, and then forming a first cap layer on the epitaxial layer. Preferably, a top surface of the first cap layer includes a curve concave upward and a bottom surface of the first cap layer includes a planar surface higher than a top surface of the substrate.

公开(公告)号：US20220190160A1

公开(公告)日：2022-06-16

申请号：US17147468

申请日：2021-01-13

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chi-Hsuan Tang ,  Chung-Ting Huang ,  Bo-Shiun Chen ,  Chun-Jen Chen ,  Yu-Shu Lin

IPC: H01L29/78 ,  H01L29/66 ,  H01L29/06 ,  H01L21/02

Abstract: A method for fabricating a semiconductor device includes the steps of first forming a gate structure on a substrate, forming a first spacer adjacent to the gate structure, forming a second spacer adjacent to the first spacer, forming an epitaxial layer adjacent to the second spacer, forming a second cap layer on the epitaxial layer, and then forming a first cap layer on the second cap layer. Preferably, a top surface of the first cap layer includes a V-shape and the first cap layer and the second cap layer are made of different materials.

公开(公告)号：US20210151580A1

公开(公告)日：2021-05-20

申请号：US17160421

申请日：2021-01-28

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Wei-Chih Chuang ,  Chia-Jong Liu ,  Kuang-Hsiu Chen ,  Chung-Ting Huang ,  Chi-Hsuan Tang ,  Kai-Hsiang Wang ,  Bing-Yang Jiang ,  Yu-Lin Cheng ,  Chun-Jen Chen ,  Yu-Shu Lin ,  Jhong-Yi Huang ,  Chao-Nan Chen ,  Guan-Ying Wu

IPC: H01L29/66 ,  H01L29/423

Abstract: A method for fabricating semiconductor device includes the steps of: forming a gate structure on a substrate; forming a first spacer and a second spacer around the gate structure; forming a recess adjacent to two sides of the second spacer; performing a cleaning process to trim the second spacer for forming a void between the first spacer and the substrate; and forming an epitaxial layer in the recess.

公开(公告)号：US10943991B2

公开(公告)日：2021-03-09

申请号：US16294877

申请日：2019-03-06

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Wei-Chih Chuang ,  Chia-Jong Liu ,  Kuang-Hsiu Chen ,  Chung-Ting Huang ,  Chi-Hsuan Tang ,  Kai-Hsiang Wang ,  Bing-Yang Jiang ,  Yu-Lin Cheng ,  Chun-Jen Chen ,  Yu-Shu Lin ,  Jhong-Yi Huang ,  Chao-Nan Chen ,  Guan-Ying Wu

IPC: H01L29/66 ,  H01L29/423

Abstract: A semiconductor device and a method for fabricating the semiconductor device are provided, in which the method includes the steps of forming a gate structure on a substrate, forming a spacer on a sidewall of the gate structure, forming two recesses adjacent to two sides of the spacer, performing a cleaning process to trim the spacer for forming a void between the spacer and the substrate, and forming two portions of an epitaxial layer in the two recesses. The semiconductor device preferably includes a cap layer on the two portions of the epitaxial layer as the cap layer includes a planar top surface and an inclined sidewall.