公开(公告)号：US12136567B2

公开(公告)日：2024-11-05

申请号：US17838723

申请日：2022-06-13

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Hsin-Ping Chen ,  Shau-Lin Shue ,  Min Cao

IPC: H01L21/768 ,  H01L21/3213 ,  H01L23/522 ,  H01L23/528

Abstract: The present disclosure provides a method of forming a semiconductor structure. The method includes providing a semiconductor substrate and forming a patterned metal structure on the semiconductor substrate, wherein the patterned metal structure includes a first metal layer and a second metal layer deposited in a single deposition step. The method further includes etching a portion of the second metal layer thereby forming a metal plug in the second metal layer, the first metal layer of the patterned metal structure having a first metal feature underlying and contacting the metal plug.

公开(公告)号：US11961897B2

公开(公告)日：2024-04-16

申请号：US17572267

申请日：2022-01-10

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Chi-Hsing Hsu ,  Sai-Hooi Yeong ,  Ching-Wei Tsai ,  Kuan-Lun Cheng ,  Chih-Hao Wang ,  Min Cao

IPC: H01L29/51 ,  H01L21/02 ,  H01L21/8238 ,  H01L27/092 ,  H01L29/06

CPC classification number: H01L29/516 ,  H01L21/02178 ,  H01L21/02181 ,  H01L21/02186 ,  H01L21/02189 ,  H01L21/02194 ,  H01L21/823821 ,  H01L21/823857 ,  H01L21/823878 ,  H01L27/0924 ,  H01L29/0653 ,  H01L29/517

Abstract: A first fin structure is disposed over a substrate. The first fin structure contains a semiconductor material. A gate dielectric layer is disposed over upper and side surfaces of the first fin structure. A gate electrode layer is formed over the gate dielectric layer. A second fin structure is disposed over the substrate. The second fin structure is physically separated from the first fin structure and contains a ferroelectric material. The second fin structure is electrically coupled to the gate electrode layer.

公开(公告)号：US11916128B2

公开(公告)日：2024-02-27

申请号：US18175137

申请日：2023-02-27

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Min Cao ,  Pei-Yu Wang ,  Sai-Hooi Yeong ,  Ching-Wei Tsai ,  Kuan-Lun Cheng ,  Chih-Hao Wang

IPC: H01L21/00 ,  H01L21/02 ,  H01L21/8238 ,  H01L27/092 ,  H01L29/423 ,  H01L29/51 ,  H01L29/66 ,  H01L29/78

CPC classification number: H01L29/516 ,  H01L21/0206 ,  H01L21/823828 ,  H01L21/823857 ,  H01L27/092 ,  H01L29/42364 ,  H01L29/513 ,  H01L29/517 ,  H01L29/6684 ,  H01L29/78391

Abstract: The present disclosure provides a method of forming a semiconductor device including an nFET structure and a pFET structure where each of the nFET and pFET structures include a semiconductor substrate and a gate trench. The method includes depositing an interfacial layer in each gate trench, depositing a first ferroelectric layer over the interfacial layer, removing the first ferroelectric layer from the nFET structure, depositing a metal oxide layer in each gate trench, depositing a second ferroelectric layer over the metal oxide layer, removing the second ferroelectric layer from the pFET structure, and depositing a gate electrode in each gate trench.

公开(公告)号：US20230223459A1

公开(公告)日：2023-07-13

申请号：US18175137

申请日：2023-02-27

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Min Cao ,  Pei-Yu Wang ,  Sai-Hooi Yeong ,  Ching-Wei Tsai ,  Kuan-Lun Cheng ,  Chih-Hao Wang

IPC: H01L29/51 ,  H01L29/78 ,  H01L21/02 ,  H01L21/8238 ,  H01L27/092 ,  H01L29/66 ,  H01L29/423

CPC classification number: H01L29/516 ,  H01L29/513 ,  H01L29/78391 ,  H01L21/0206 ,  H01L21/823828 ,  H01L27/092 ,  H01L29/6684 ,  H01L29/42364 ,  H01L21/823857 ,  H01L29/517

Abstract: The present disclosure provides a method of forming a semiconductor device including an nFET structure and a pFET structure where each of the nFET and pFET structures include a semiconductor substrate and a gate trench. The method includes depositing an interfacial layer in each gate trench, depositing a first ferroelectric layer over the interfacial layer, removing the first ferroelectric layer from the nFET structure, depositing a metal oxide layer in each gate trench, depositing a second ferroelectric layer over the metal oxide layer, removing the second ferroelectric layer from the pFET structure, and depositing a gate electrode in each gate trench.

公开(公告)号：US11581314B2

公开(公告)日：2023-02-14

申请号：US16723939

申请日：2019-12-20

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Ali Keshavarzi ,  Ta-Pen Guo ,  Shu-Hui Sung ,  Hsiang-Jen Tseng ,  Shyue-Shyh Lin ,  Lee-Chung Lu ,  Chung-Cheng Wu ,  Li-Chun Tien ,  Jung-Chan Yang ,  Ting Yu Chen ,  Min Cao ,  Yung-Chin Hou

IPC: H01L27/092 ,  H01L21/8238 ,  H01L23/485 ,  H01L27/02 ,  H01L29/423 ,  H01L29/66 ,  H01L29/78 ,  H01L29/06 ,  H01L29/49

Abstract: An integrated circuit includes a first diffusion area for a first type transistor. The first type transistor includes a first drain region and a first source region. A second diffusion area for a second type transistor is separated from the first diffusion area. The second type transistor includes a second drain region and a second source region. A gate electrode continuously extends across the first diffusion area and the second diffusion area in a routing direction. A first metallic structure is electrically coupled with the first source region. A second metallic structure is electrically coupled with the second drain region. A third metallic structure is disposed over and electrically coupled with the first and second metallic structures. A width of the first metallic structure is substantially equal to or larger than a width of the third metallic structure.

公开(公告)号：US20230013764A1

公开(公告)日：2023-01-19

申请号：US17683944

申请日：2022-03-01

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Chih-Chao Chou ,  Yi-Hsun Chiu ,  Shang-Wen Chang ,  Ching-Wei Tsai ,  Chih-Hao Wang ,  Min Cao

IPC: H01L23/522 ,  H01L29/06 ,  H01L29/786 ,  H01L21/8234 ,  H01L23/528

Abstract: Semiconductor devices including backside capacitors and methods of forming the same are disclosed. In an embodiment, a semiconductor device includes a first transistor structure; a front-side interconnect structure on a front-side of the first transistor structure, the front-side interconnect structure including a front-side conductive line; a backside interconnect structure on a backside of the first transistor structure, the backside interconnect structure including a backside conductive line, the backside conductive line having a line width greater than a line width of the front-side conductive line; and a first capacitor structure coupled to the backside interconnect structure.

公开(公告)号：US20220352019A1

公开(公告)日：2022-11-03

申请号：US17859981

申请日：2022-07-07

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Hsin-Ping Chen ,  Ming-Han Lee ,  Shin-Yi Yang ,  Yung-Hsu Wu ,  Chia-Tien Wu ,  Shau-Lin Shue ,  Min Cao

IPC: H01L21/768 ,  H01L23/532 ,  H01L23/528 ,  H01L23/522

Abstract: Interconnect structures and method of forming the same are disclosed herein. An exemplary interconnect structure includes a first contact feature in a first dielectric layer, a second dielectric layer over the first dielectric layer, a second contact feature over the first contact feature, a barrier layer between the second dielectric layer and the second contact feature, and a liner between the barrier layer and the second contact feature. An interface between the first contact feature and the second contact feature includes the liner but is free of the barrier layer.

公开(公告)号：US20220328351A1

公开(公告)日：2022-10-13

申请号：US17838723

申请日：2022-06-13

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Hsin-Ping Chen ,  Shau-Lin Shue ,  Min Cao

IPC: H01L21/768 ,  H01L21/3213 ,  H01L23/528 ,  H01L23/522

Abstract: The present disclosure provides a method of forming a semiconductor structure. The method includes providing a semiconductor substrate and forming a patterned metal structure on the semiconductor substrate, wherein the patterned metal structure includes a first metal layer and a second metal layer deposited in a single deposition step. The method further includes etching a portion of the second metal layer thereby forming a metal plug in the second metal layer, the first metal layer of the patterned metal structure having a first metal feature underlying and contacting the metal plug.

公开(公告)号：US11329043B2

公开(公告)日：2022-05-10

申请号：US16823792

申请日：2020-03-19

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Chih-Hao Wang ,  Min Cao ,  Shang-Wen Chang

IPC: H01L29/423 ,  H01L29/66 ,  H01L27/092 ,  H01L29/78 ,  H01L21/8238 ,  H01L29/06

Abstract: Various embodiments of the present disclosure are directed towards an integrated chip (IC). The IC includes a first fin projecting vertically from a semiconductor substrate. A second fin projects vertically from the semiconductor substrate, where the second fin is spaced from the first fin, and where the first fin has a first uppermost surface that is disposed over a second uppermost surface of the second fin. A nanostructure stack is disposed over the second fin and vertically spaced from the second fin, where the nanostructure stack comprises a plurality of vertically stacked semiconductor nanostructures. A pair of first source/drain regions is disposed on the first fin, where the first source/drain regions are disposed on opposite sides of an upper portion of the first fin. A pair of second source/drain regions is disposed on the second fin, where the second source/drain regions are disposed on opposite sides of the nanostructure stack.

公开(公告)号：US20210384074A1

公开(公告)日：2021-12-09

申请号：US16895338

申请日：2020-06-08

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Hsin-Ping Chen ,  Shau-Lin Shue ,  Min Cao

IPC: H01L21/768 ,  H01L21/3213 ,  H01L23/528 ,  H01L23/522

Abstract: The present disclosure provides a method of forming a semiconductor structure. The method includes providing a semiconductor substrate and forming a patterned metal structure on the semiconductor substrate, wherein the patterned metal structure includes a first metal layer and a second metal layer deposited in a single deposition step. The method further includes etching a portion of the second metal layer thereby forming a metal plug in the second metal layer, the first metal layer of the patterned metal structure having a first metal feature underlying and contacting the metal plug.