公开(公告)号：US20180175196A1

公开(公告)日：2018-06-21

申请号：US15475826

申请日：2017-03-31

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Wen-Chin Chen ,  Cheng-Yi Wu ,  Yu-Hung Cheng ,  Ren-Hua Guo ,  Hsiang Liu ,  Chin-Szu Lee

IPC: H01L29/78 ,  H01L29/04 ,  H01L29/06 ,  H01L29/161 ,  H01L29/66 ,  H01L21/768

CPC classification number: H01L21/2022 ,  H01L21/02381 ,  H01L21/0243 ,  H01L21/0245 ,  H01L21/02502 ,  H01L21/02516 ,  H01L21/02532 ,  H01L21/02579 ,  H01L21/0262 ,  H01L21/02636 ,  H01L21/02639 ,  H01L21/30608 ,  H01L29/045 ,  H01L29/0847 ,  H01L29/165 ,  H01L29/66287 ,  H01L29/66628 ,  H01L29/66636 ,  H01L29/7848

Abstract: A method includes providing a semiconductor structure having an active region and an isolation structure adjacent to the active region, the active region having source and drain regions sandwiching a channel region for a transistor, the semiconductor structure further having a gate structure over the channel region. The method further includes etching a trench in one of the source and drain regions, wherein the trench exposes a portion of a sidewall of the isolation structure, epitaxially growing a first semiconductor layer in the trench, epitaxially growing a second semiconductor layer over the first semiconductor layer, changing a crystalline facet orientation of a portion of a top surface of the second semiconductor layer by an etching process, and epitaxially growing a third semiconductor layer over the second semiconductor layer after the changing of the crystalline facet orientation.

公开(公告)号：US09679980B2

公开(公告)日：2017-06-13

申请号：US14208905

申请日：2014-03-13

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Yu-Hung Cheng ,  Cheng-Ta Wu ,  Yeur-Luen Tu ,  Chia-Shiung Tsai ,  Ru-Liang Lee ,  I-Ting Li ,  Ming-Hsiang Kao

IPC: H01L29/788 ,  H01L29/66 ,  H01L29/423 ,  H01L21/28 ,  H01L27/11521 ,  G11C16/04

CPC classification number: H01L29/42328 ,  G11C16/0433 ,  H01L21/28273 ,  H01L27/11521 ,  H01L29/66825 ,  H01L29/7881

Abstract: The present disclosure relates to an embedded flash memory cell having a common source oxide layer with a substantially flat top surface, disposed between a common source region and a common erase gate, and a method of formation. In some embodiments, the embedded flash memory cell has a semiconductor substrate with a common source region separated from a first drain region by a first channel region and separated from a second drain region by a second channel region. A high-quality common source oxide layer is formed by an in-situ steam generation (ISSG) process at a location overlying the common source region. First and second floating gate are disposed over the first and second channel regions on opposing sides of a common erase gate having a substantially flat bottom surface abutting a substantially flat top surface of the common source oxide layer.

公开(公告)号：US20160111511A1

公开(公告)日：2016-04-21

申请号：US14980553

申请日：2015-12-28

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Yu-Hung Cheng ,  Cheng-Ta Wu ,  Yeur-Luen Tu ,  Chia-Shiung Tsai ,  Ru-Liang Lee ,  Tung-I Lin ,  Wei-Li Chen

IPC: H01L29/423 ,  H01L29/16 ,  H01L29/10 ,  H01L29/06

CPC classification number: H01L29/42364 ,  H01L21/02532 ,  H01L21/02579 ,  H01L21/0262 ,  H01L21/02636 ,  H01L27/14614 ,  H01L27/14638 ,  H01L29/0649 ,  H01L29/0688 ,  H01L29/1037 ,  H01L29/105 ,  H01L29/1054 ,  H01L29/16 ,  H01L29/165 ,  H01L29/4236 ,  H01L29/66636 ,  H01L29/66651 ,  H01L29/66666 ,  H01L29/66795 ,  H01L29/785

Abstract: The present disclosure relates to a transistor device. In some embodiments, the transistor device has an epitaxial layer disposed over a substrate. The epitaxial layer is arranged between a source region and a drain region separated along a first direction. Isolation structures are arranged on opposite sides of the epitaxial layer along a second direction, perpendicular to the first direction. A gate dielectric layer is disposed over the epitaxial layer, and a conductive gate electrode is disposed over the gate dielectric layer. The epitaxial layer overlying the substrate improves the surface roughness of the substrate, thereby improving transistor device performance.

Abstract translation: 本公开涉及晶体管器件。 在一些实施例中，晶体管器件具有设置在衬底上的外延层。 外延层布置在沿着第一方向分离的源极区域和漏极区域之间。 绝缘结构沿垂直于第一方向的第二方向布置在外延层的相对侧上。 栅极电介质层设置在外延层上，并且导电栅电极设置在栅极介电层上。 覆盖衬底的外延层改善了衬底的表面粗糙度，从而提高了晶体管器件的性能。

公开(公告)号：US09245974B2

公开(公告)日：2016-01-26

申请号：US14187850

申请日：2014-02-24

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Yu-Hung Cheng ,  Cheng-Ta Wu ,  Yeur-Luen Tu ,  Chia-Shiung Tsai ,  Ru-Liang Lee ,  Tung-I Lin ,  Wei-Li Chen

IPC: H01L21/311 ,  H01L29/66

CPC classification number: H01L29/42364 ,  H01L21/02532 ,  H01L21/02579 ,  H01L21/0262 ,  H01L21/02636 ,  H01L27/14614 ,  H01L27/14638 ,  H01L29/0649 ,  H01L29/0688 ,  H01L29/1037 ,  H01L29/105 ,  H01L29/1054 ,  H01L29/16 ,  H01L29/165 ,  H01L29/4236 ,  H01L29/66636 ,  H01L29/66651 ,  H01L29/66666 ,  H01L29/66795 ,  H01L29/785

Abstract: The present disclosure relates to a method of generating a transistor device having an epitaxial layer disposed over a recessed active region. The epitaxial layer improves transistor device performance. In some embodiments, the method is performed by providing a semiconductor substrate. An epitaxial growth is performed to form an epitaxial layer onto the semiconductor substrate. An electrically insulating layer is then formed onto the epitaxial layer, and a gate structure is formed onto the electrically insulating layer. By forming the epitaxial layer over the semiconductor substrate the surface roughness of the semiconductor substrate is improved, thereby improving transistor device performance.

Abstract translation: 本公开涉及一种生成具有设置在凹入的有源区上的外延层的晶体管器件的方法。 外延层改善晶体管器件的性能。 在一些实施例中，通过提供半导体衬底来执行该方法。 进行外延生长以在半导体衬底上形成外延层。 然后在外延层上形成电绝缘层，并且在电绝缘层上形成栅极结构。 通过在半导体衬底上形成外延层，改善了半导体衬底的表面粗糙度，从而提高了晶体管器件的性能。

公开(公告)号：US09099324B2

公开(公告)日：2015-08-04

申请号：US14062838

申请日：2013-10-24

Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.

Inventor： Yu-Hung Cheng ,  Cheng-Ta Wu ,  Yeur-Luen Tu ,  Chia-Shiung Tsai ,  Ru-Liang Lee ,  Tung-I Lin ,  Wei-Li Chen

IPC: H01L21/76 ,  H01L29/06 ,  H01L21/762

CPC classification number: H01L29/167 ,  H01L21/02529 ,  H01L21/02532 ,  H01L21/02576 ,  H01L21/02579 ,  H01L21/0262 ,  H01L21/3065 ,  H01L21/76224 ,  H01L21/76237 ,  H01L29/0649

Abstract: A semiconductor device includes a semiconductor substrate and a trench isolation. The trench isolation is located in the semiconductor substrate, and includes an epitaxial layer and a dielectric material. The epitaxial layer is in a trench of the semiconductor and is peripherally enclosed thereby, in which the epitaxial layer is formed by performing etch and epitaxy processes. The etch and epitaxy process includes etching out a portion of a sidewall of the trench and a portion of a bottom surface of the trench and forming the epitaxial layer conformal to the remaining portion of the sidewall and the remaining portion of the bottom surface. The dielectric material is peripherally enclosed by the epitaxial layer.

Abstract translation: 半导体器件包括半导体衬底和沟槽隔离。 沟槽隔离位于半导体衬底中，并且包括外延层和电介质材料。 外延层位于半导体的沟槽中并由其周边封闭，其中通过进行蚀刻和外延工艺形成外延层。 蚀刻和外延工艺包括蚀刻沟槽的侧壁的一部分和沟槽的底表面的一部分，并且形成与侧壁的剩余部分和底表面的剩余部分共形的外延层。 电介质材料由外延层周边封闭。

公开(公告)号：US11817469B2

公开(公告)日：2023-11-14

申请号：US17397132

申请日：2021-08-09

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Yu-Hung Cheng ,  Ching I Li ,  Yu-Siang Fang ,  Yu-Yao Hsia ,  Min-Ying Tsai

IPC: H01L27/14 ,  H01L27/146 ,  H01L21/762

CPC classification number: H01L27/1463 ,  H01L21/76224 ,  H01L27/14683

Abstract: In some embodiments, the present disclosure relates to a method for forming an integrated chip (IC), including forming a plurality of image sensing elements including a first doping type within a substrate, performing a first removal process to form deep trenches within the substrate, the deep trenches separating the plurality of image sensing elements from one another, performing an epitaxial growth process to form an isolation epitaxial precursor including a first material within the deep trenches and to form a light absorbing layer including a second material different than the first material within the deep trenches and between sidewalls of the isolation epitaxial precursor, performing a dopant activation process on the light absorbing layer and the isolation epitaxial precursor to form a doped isolation layer including a second doping type opposite the first doping type, and filling remaining portions of the deep trenches with an isolation filler structure.

公开(公告)号：US20220367535A1

公开(公告)日：2022-11-17

申请号：US17397132

申请日：2021-08-09

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Yu-Hung Cheng ,  Ching I Li ,  Yu-Siang Fang ,  Yu-Yao Hsia ,  Min-Ying Tsai

IPC: H01L27/146 ,  H01L21/762

Abstract: In some embodiments, the present disclosure relates to a method for forming an integrated chip (IC), including forming a plurality of image sensing elements including a first doping type within a substrate, performing a first removal process to form deep trenches within the substrate, the deep trenches separating the plurality of image sensing elements from one another, performing an epitaxial growth process to form an isolation epitaxial precursor including a first material within the deep trenches and to form a light absorbing layer including a second material different than the first material within the deep trenches and between sidewalls of the isolation epitaxial precursor, performing a dopant activation process on the light absorbing layer and the isolation epitaxial precursor to form a doped isolation layer including a second doping type opposite the first doping type, and filling remaining portions of the deep trenches with an isolation filler structure.

公开(公告)号：US20210210350A1

公开(公告)日：2021-07-08

申请号：US17205715

申请日：2021-03-18

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Wen-Chin Chen ,  Cheng-Yi Wu ,  Yu-Hung Cheng ,  Ren-Hua Guo ,  Hsiang Liu ,  Chin-Szu Lee

IPC: H01L21/20 ,  H01L29/66 ,  H01L29/04 ,  H01L21/02 ,  H01L29/08 ,  H01L29/78 ,  H01L29/165

Abstract: A method includes providing a semiconductor structure having an active region and an isolation structure adjacent to the active region, the active region having source and drain regions sandwiching a channel region for a transistor, the semiconductor structure further having a gate structure over the channel region. The method further includes etching a trench in one of the source and drain regions, wherein the trench exposes a portion of a sidewall of the isolation structure, epitaxially growing a first semiconductor layer in the trench, epitaxially growing a second semiconductor layer over the first semiconductor layer, changing a crystalline facet orientation of a portion of a top surface of the second semiconductor layer by an etching process, and epitaxially growing a third semiconductor layer over the second semiconductor layer after the changing of the crystalline facet orientation.

公开(公告)号：US20200258989A1

公开(公告)日：2020-08-13

申请号：US16861478

申请日：2020-04-29

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Cheng-Ta Wu ,  Chia-Shiung Tsai ,  Jiech-Fun Lu ,  Kuo-Hwa Tzeng ,  Shih-Pei Chou ,  Yu-Hung Cheng ,  Yeur-Luen Tu

IPC: H01L29/40 ,  H01L21/311 ,  H01L21/66 ,  H01L21/324 ,  H01L29/06 ,  H01L21/02 ,  H01L21/762

Abstract: Various embodiments of the present application are directed to a method for forming a thin semiconductor-on-insulator (SOI) substrate without implantation radiation and/or plasma damage. In some embodiments, a device layer is epitaxially formed on a sacrificial substrate and an insulator layer is formed on the device layer. The insulator layer may, for example, be formed with a net charge that is negative or neutral. The sacrificial substrate is bonded to a handle substrate, such that the device layer and the insulator layer are between the sacrificial and handle substrates. The sacrificial substrate is removed, and the device layer is cyclically thinned until the device layer has a target thickness. Each thinning cycle comprises oxidizing a portion of the device layer and removing oxide resulting from the oxidizing.

公开(公告)号：US20200212083A1

公开(公告)日：2020-07-02

申请号：US16815409

申请日：2020-03-11

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Yu-Hung Cheng ,  Shyh-Fann Ting ,  Yen-Ting Chiang ,  Yeur-Luen Tu ,  Min-Ying Tsai

IPC: H01L27/146

Abstract: In some embodiments, a method is provided. The method includes forming a plurality of trenches in a semiconductor substrate, where the trenches extend into the semiconductor substrate from a back-side of the semiconductor substrate. An epitaxial layer comprising a dopant is formed on lower surfaces of the trenches, sidewalls of the trenches, and the back-side of the semiconductor substrate, where the dopant has a first doping type. The dopant is driven into the semiconductor substrate to form a first doped region having the first doping type along the epitaxial layer, where the first doped region separates a second doped region having a second doping type opposite the first doping type from the sidewalls of the trenches and from the back-side of the semiconductor substrate. A dielectric layer is formed over the back-side of the semiconductor substrate, where the dielectric layer fill the trenches to form back-side deep trench isolation structures.