公开(公告)号：US11342373B2

公开(公告)日：2022-05-24

申请号：US16842909

申请日：2020-04-08

Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.

Inventor： Wei-Chuang Wu ,  Ming-Tsong Wang ,  Feng-Chi Hung ,  Ching-Chun Wang ,  Jen-Cheng Liu ,  Dun-Nian Yaung

IPC: H01L27/146

Abstract: A method for manufacturing an image sensing device includes forming an interconnection layer over a front surface of a semiconductor substrate. A trench is formed to extend from a back surface of the semiconductor substrate. An etch stop layer is formed along the trench. A buffer layer is formed over the etch stop layer. An etch process is performed for etching the buffer layer. The buffer layer and the etch stop layer include different materials.

公开(公告)号：US11322540B2

公开(公告)日：2022-05-03

申请号：US17070430

申请日：2020-10-14

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Kai-Chun Hsu ,  Ching-Chun Wang ,  Dun-Nian Yaung ,  Jeng-Shyan Lin ,  Shyh-Fann Ting

IPC: H01L27/146 ,  H01L23/00

Abstract: The present disclosure relates to an integrated circuit. The integrated circuit includes a plurality of interconnects within a dielectric structure over a substrate. A passivation structure is arranged over the dielectric structure. The passivation structure has sidewalls connected to one or more upper surfaces of the passivation structure. A bond pad is arranged directly between the sidewalls of the passivation structure. An upper passivation layer is disposed over the passivation structure and the bond pad. The upper passivation layer extends from over an upper surface of the bond pad to within a recess in the upper surface of the bond pad.

公开(公告)号：US11282802B2

公开(公告)日：2022-03-22

申请号：US16574185

申请日：2019-09-18

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Ming-Hsien Yang ,  Ching-Chun Wang ,  Dun-Nian Yaung ,  Feng-Chi Hung ,  Sin-Yao Huang

IPC: H01L23/532 ,  H01L23/48 ,  H01L27/146 ,  H01L23/522 ,  H01L23/498 ,  H01L23/00 ,  H01L21/768

Abstract: A semiconductor device structure is provided, in some embodiments. The semiconductor device structure includes a semiconductor substrate having a first surface, a second surface, and sidewalls defining a recess that passes through the semiconductor substrate. The semiconductor device structure further includes an interconnect structure having one or more interconnect layers within a first dielectric structure that is disposed along the second surface. A conductive bonding structure is disposed within the recess and includes nickel. The conductive bonding structure has opposing outermost sidewalls that contact sidewalls of the interconnect structure.

公开(公告)号：US11244981B2

公开(公告)日：2022-02-08

申请号：US16705376

申请日：2019-12-06

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Sin-Yao Huang ,  Ching-Chun Wang ,  Dun-Nian Yaung ,  Feng-Chi Hung ,  Ming-Tsong Wang ,  Shih Pei Chou

IPC: H01L27/146

Abstract: Some embodiments relate an integrated circuit (IC). The IC includes a first substrate including an array of photodetectors, wherein a bond pad opening extends through the first substrate and is defined by an inner sidewall of the first substrate. An interconnect structure is disposed over the first substrate and includes a plurality of metal layers stacked over one another and disposed within a dielectric structure. The bond pad opening further extends through at least a portion of the interconnect structure and is further defined by an inner sidewall of the interconnect structure. A bond pad structure directly contacts a metal layer of the plurality of metal layers in the interconnect structure and is located at an uppermost extent of the bond pad opening.

公开(公告)号：US11222915B2

公开(公告)日：2022-01-11

申请号：US16040567

申请日：2018-07-20

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Kai-Chun Hsu ,  Ching-Chun Wang ,  Dun-Nian Yaung ,  Jeng-Shyan Lin ,  Shyh-Fann Ting

IPC: H01L21/00 ,  H01L27/146 ,  H01L23/00

Abstract: The present disclosure, in some embodiments, relates to a method of forming an integrated chip. The method may be performed by forming a plurality of interconnect layers within a dielectric structure over an upper surface of a substrate. A passivation structure is formed over the dielectric structure. The passivation structure has sidewalls and a horizontally extending surface defining has a recess within an upper surface of the passivation structure. A bond pad is formed having a lower surface overlying the horizontally extending surface and one or more protrusions extending outward from the lower surface. The one or more protrusions extend through one or more openings within the horizontally extending surface to contact a first one of the plurality of interconnect layers. An upper passivation layer is deposited on sidewalls and an upper surface of the bond pad and on sidewalls and the upper surface of the passivation structure.

公开(公告)号：US20210288029A1

公开(公告)日：2021-09-16

申请号：US17333120

申请日：2021-05-28

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Sin-Yao Huang ,  Chun-Chieh Chuang ,  Ching-Chun Wang ,  Sheng-Chau Chen ,  Dun-Nian Yaung ,  Feng-Chi Hung ,  Yung-Lung Lin

IPC: H01L25/065 ,  H01L23/498 ,  H01L25/00 ,  H01L27/146 ,  H01L23/00

Abstract: In some embodiments, the present disclosure relates to an integrated chip structure. The integrated chip structure includes a first plurality of interconnects arranged within a first inter-level dielectric (ILD) structure on a first substrate, and a second plurality of interconnects arranged within a second ILD structure between the first ILD structure and a second substrate. A bonding structure is disposed within a recess extending through the second substrate. A connector structure is vertically between the first plurality of interconnects and the second plurality of interconnects. The second plurality of interconnects include a first interconnect directly contacting the bonding structure. The second plurality of interconnects also include one or more extensions extending from directly below the first interconnect to laterally outside of the first interconnect and directly above the connector structure, as viewed along a cross-sectional view.

公开(公告)号：US20210028219A1

公开(公告)日：2021-01-28

申请号：US17070430

申请日：2020-10-14

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Kai-Chun Hsu ,  Ching-Chun Wang ,  Dun-Nian Yaung ,  Jeng-Shyan Lin ,  Shyh-Fann Ting

IPC: H01L27/146 ,  H01L23/00

Abstract: The present disclosure relates to an integrated circuit. The integrated circuit includes a plurality of interconnects within a dielectric structure over a substrate. A passivation structure is arranged over the dielectric structure. The passivation structure has sidewalls connected to one or more upper surfaces of the passivation structure. A bond pad is arranged directly between the sidewalls of the passivation structure. An upper passivation layer is disposed over the passivation structure and the bond pad. The upper passivation layer extends from over an upper surface of the bond pad to within a recess in the upper surface of the bond pad.

公开(公告)号：US10861894B2

公开(公告)日：2020-12-08

申请号：US16661166

申请日：2019-10-23

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Wei Chuang Wu ,  Ching-Chun Wang ,  Dun-Nian Yaung ,  Feng-Chi Hung ,  Jen-Cheng Liu ,  Yen-Ting Chiang ,  Chun-Yuan Chen ,  Shen-Hui Hong

IPC: H01L27/146 ,  H04N5/369 ,  H04N5/374

Abstract: The present disclosure relates to a CMOS image sensor having a multiple deep trench isolation (MDTI) structure, and an associated method of formation. In some embodiments, a plurality of photodiodes is formed from a front-side of a substrate. A plurality of boundary deep trench isolation (BDTI) trenches having a first depth and a plurality of multiple deep trench isolation (MDTI) trenches having a second depth are formed from a back-side of the substrate. A stack of dielectric layers is formed in the BDTI trenches and the MDTI trenches. A plurality of color filters is formed overlying the stack of dielectric layers corresponding to the plurality of photodiodes.

公开(公告)号：US20200312817A1

公开(公告)日：2020-10-01

申请号：US16902539

申请日：2020-06-16

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Kuo-Ming Wu ,  Ching-Chun Wang ,  Dun-Nian Yaung ,  Hsing-Chih Lin ,  Jen-Cheng Liu ,  Min-Feng Kao ,  Yung-Lung Lin ,  Shih-Han Huang ,  I-Nan Chen

IPC: H01L25/065 ,  H01L23/528 ,  H01L23/48 ,  H01L25/00 ,  H01L23/00 ,  H01L23/532

Abstract: A three-dimensional (3D) integrated circuit (IC) is provided. In some embodiments, a second IC die is bonded to a first IC die by a first bonding structure. A third IC die is bonded to the second IC die by a second bonding structure. The second bonding structure is arranged between back sides of the second IC die and the third IC die opposite to corresponding interconnect structures and comprises a first TSV (through substrate via) disposed through a second substrate of the second IC die and a second TSV disposed through a third substrate of the third IC die. The second bonding structure further comprises conductive features with oppositely titled sidewalls disposed between the first TSV and the second TSV.

公开(公告)号：US10727265B2

公开(公告)日：2020-07-28

申请号：US16661136

申请日：2019-10-23

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Wei Chuang Wu ,  Ching-Chun Wang ,  Dun-Nian Yaung ,  Feng-Chi Hung ,  Jen-Cheng Liu ,  Yen-Ting Chiang ,  Chun-Yuan Chen ,  Shen-Hui Hong

IPC: H01L27/146 ,  H04N5/369 ,  H04N5/374

Abstract: The present disclosure relates to a CMOS image sensor having a multiple deep trench isolation (MDTI) structure, and an associated method of formation. In some embodiments, a plurality of pixel regions is disposed within a substrate and respectively comprising a photodiode. The photodiode comprises a doped layer with a first doping type and an adjoining region of the substrate with a second doping type that is different than the first doping type. A boundary deep trench isolation (BDTI) structure is disposed between adjacent pixel regions. A multiple deep trench isolation (MDTI) structure overlies the doped layer of the photodiode. The MDTI structure comprises a stack of dielectric layers lining sidewalls of a MDTI trench. A plurality of color filters is disposed at the back-side of the substrate corresponding to the respective photodiode of the plurality of pixel regions and overlying the MDTI structure.