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：US20220359517A1

公开(公告)日：2022-11-10

申请号：US17371351

申请日：2021-07-09

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Po-Kang Ho ,  Tsai-Yu Huang ,  Huicheng Chang ,  Yee-Chia Yeo

IPC: H01L27/092 ,  H01L29/06 ,  H01L29/78 ,  H01L29/66 ,  H01L21/8234

Abstract: In an embodiment, a device includes: a first semiconductor fin extending from a substrate; a second semiconductor fin extending from the substrate; a hybrid fin over the substrate, the second semiconductor fin disposed between the first semiconductor fin and the hybrid fin; a first isolation region between the first semiconductor fin and the second semiconductor fin; and a second isolation region between the second semiconductor fin and the hybrid fin, a top surface of the second isolation region disposed further from the substrate than a top surface of the first isolation region.

公开(公告)号：US20220238350A1

公开(公告)日：2022-07-28

申请号：US17717375

申请日：2022-04-11

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Tzung-Yi Tsai ,  Yen-Ming Chen ,  Tsung-Lin Lee ,  Po-Kang Ho

IPC: H01L21/324 ,  H01L29/78 ,  H01L29/66 ,  H01L29/161 ,  H01L29/51 ,  H01L21/768

Abstract: A semiconductor device is provided. The semiconductor device has a fin structure that protrudes vertically upwards. A lateral dimension of the fin structure is reduced. A semiconductor layer is formed on the fin structure after the reducing of the lateral dimension. An annealing process is performed to the semiconductor device after the forming of the semiconductor layer. A dielectric layer is formed over the fin structure after the performing of the annealing process.

公开(公告)号：US20170250282A1

公开(公告)日：2017-08-31

申请号：US15054133

申请日：2016-02-26

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Cheng-Ta Wu ,  Yu-Ting Lin ,  Po-Kai Hsiao ,  Po-Kang Ho ,  Ting-Chun Wang

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

CPC classification number: H01L29/7848 ,  H01L21/823431 ,  H01L21/823468 ,  H01L21/823481 ,  H01L27/0886 ,  H01L29/165 ,  H01L29/66545

Abstract: A FinFET including a substrate, a plurality of isolation structures, a plurality of blocking layers, and a gate stack is provided. The substrate has a plurality of semiconductor fins. The isolation structures are located on the substrate to isolate the semiconductor fins. In addition, the semiconductor fins protrude from the isolation structures. The blocking layers are located between the isolation structures and the semiconductor fins. The material of the blocking layers is different from the material of the isolation structures. The gate stack is disposed across portions of the semiconductor fins, portions of the blocking layers and portions of the isolation structures. In addition, a method for fabricating the FinFET is also provided.