公开(公告)号：US11735657B2

公开(公告)日：2023-08-22

申请号：US17852371

申请日：2022-06-29

Applicant: United Microelectronics Corp.

Inventor： Tseng Hsun Liu ,  Min-Hsuan Tsai ,  Ke-Feng Lin ,  Ming-Yen Liu ,  Wen-Chung Chang ,  Cherng-En Sun

IPC: H01L29/423 ,  H01L29/78 ,  H01L29/66 ,  H01L29/10

CPC classification number: H01L29/7825 ,  H01L29/1095 ,  H01L29/4236 ,  H01L29/6656

Abstract: A method for fabricating a transistor includes providing a substrate, having a gate region and a first trench in the substrate at a first side of the gate region; forming a first gate insulating layer, disposed on a first portion of the gate region, opposite to the first trench; forming a second gate insulating layer, disposed on a second portion of the gate region and a first portion of the first trench abutting to the gate region, wherein the second gate insulating layer is thicker than the first gate insulating layer; forming a gate layer, disposed on the first and second gate insulating layers, having a downward protruding portion corresponding to the first trench; forming a first doped region in the substrate at least under the first trench; and forming a second doped region in the substrate at a second side of the gate region.

公开(公告)号：US09224857B2

公开(公告)日：2015-12-29

申请号：US13674146

申请日：2012-11-12

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Wei-Lin Chen ,  Chih-Chien Chang ,  Ke-Feng Lin ,  Chiu-Te Lee ,  Chih-Chung Wang ,  Chiu-Ling Lee

IPC: H01L29/78 ,  H01L29/66 ,  H01L29/06 ,  H01L29/417 ,  H01L29/08

CPC classification number: H01L29/7816 ,  H01L29/0653 ,  H01L29/0878 ,  H01L29/41766 ,  H01L29/66681

Abstract: A semiconductor structure comprises a substrate having a first conductive type; a deep well having a second conductive type formed in the substrate and extending down from a surface of the substrate; a first well having the first conductive type and a second well having the second conductive type both formed in the deep well and extending down from the surface of the substrate, and the second well spaced apart from the first well; a gate electrode formed on the substrate and disposed between the first and second wells; an isolation extending down from the surface of the substrate and disposed between the gate electrode and the second well; a conductive plug penetrating into the isolation and reaching the bottom thereof; and a first doping electrode region having the second conductive type, formed within the second well and below the isolation to connect the conductive plug.

Abstract translation: 半导体结构包括具有第一导电类型的衬底; 具有形成在所述基板中并从所述基板的表面向下延伸的第二导电类型的深阱; 具有第一导电类型的第一阱和具有第二导电类型的第二阱都形成在深阱中并且从衬底的表面向下延伸，并且第二阱与第一阱间隔开; 栅电极，形成在所述基板上并且设置在所述第一阱和所述第二阱之间; 从衬底的表面向下延伸并且设置在栅电极和第二阱之间的隔离件; 导电插塞穿透隔离并到达其底部; 以及具有第二导电类型的第一掺杂电极区域，形成在第二阱内并在隔离件下方以连接导电插塞。

公开(公告)号：US09034713B2

公开(公告)日：2015-05-19

申请号：US14548248

申请日：2014-11-19

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chih-Chung Wang ,  Wei-Lun Hsu ,  Shan-Shi Huang ,  Ke-Feng Lin ,  Te-Yuan Wu

IPC: H01L29/78 ,  H01L21/336 ,  H01L29/66 ,  H01L29/40 ,  H01L29/06 ,  H01L29/08 ,  H01L21/266 ,  H01L21/033

CPC classification number: H01L29/66681 ,  H01L21/0334 ,  H01L21/266 ,  H01L29/0619 ,  H01L29/0634 ,  H01L29/0696 ,  H01L29/0878 ,  H01L29/402 ,  H01L29/404 ,  H01L29/42368 ,  H01L29/4238 ,  H01L29/66659 ,  H01L29/7816

Abstract: The present invention provides a method of fabricating a HV MOS transistor device, including forming a deep well in a substrate, and the deep well; forming a first doped region in the deep well, and the first doped region, wherein a doping concentration of the first doped region and a doping concentration of the deep well in at least one electric field concentration region has a first ratio, the doping concentration of the first doped region and the doping concentration of the deep well outside the electric field concentration region has a second ratio, and the first ratio is greater than the second ratio; and forming a high voltage well in the substrate, and forming a second doped region and a third doped region respectively in the deep well and in the high voltage well.

Abstract translation: 本发明提供一种制造HV MOS晶体管器件的方法，包括在衬底和深阱中形成深阱; 在所述深阱中形成第一掺杂区域和所述第一掺杂区域，其中所述第一掺杂区域的掺杂浓度和所述深阱在至少一个电场浓度区域中的掺杂浓度具有第一比率，所述第一掺杂区域的掺杂浓度 第一掺杂区域和电场浓度区外的深阱的掺杂浓度具有第二比例，第一比值大于第二比例; 以及在所述衬底中形成高电压阱，以及分别在所述深阱和所述高电压阱中形成第二掺杂区和第三掺杂区。

公开(公告)号：US20140367789A1

公开(公告)日：2014-12-18

申请号：US13918994

申请日：2013-06-17

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Wei-Lin Chen ,  Ke-Feng Lin ,  Chiu-Ling Lee ,  Chiu-Te Lee ,  Chih-Chung Wang ,  Hsuan-Po Liao

IPC: H01L27/088 ,  H01L27/092

CPC classification number: H01L29/7816 ,  H01L27/0207 ,  H01L29/0692 ,  H01L29/0696 ,  H01L29/4238 ,  H01L29/78

Abstract: A power array with a staggered arrangement for improving on-resistance and safe operating area of a device is provided. Each power array includes two or more rows with a plurality of parallel device units arranged along the row. Each device unit includes a source region, a drain region, and a gate disposed between the source region and the drain region, wherein each drain region is offset from the adjacent drain region of adjacent rows in a row direction.

Abstract translation: 提供具有交错布置的用于改善设备的导通电阻和安全操作区域的功率阵列。 每个功率阵列包括两行或更多行，具有沿行排列的多个并行设备单元。 每个器件单元包括源极区域，漏极区域和设置在源极区域和漏极区域之间的栅极，其中每个漏极区域在相邻行的相邻漏极区域沿行方向偏移。

公开(公告)号：US11798998B2

公开(公告)日：2023-10-24

申请号：US17895042

申请日：2022-08-24

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Yi-Chieh Wang ,  Po-Chun Lai ,  Ke-Feng Lin ,  Chen-An Kuo ,  Ze-Wei Jhou

IPC: H01L29/76 ,  H01L31/062 ,  H01L29/94 ,  H01L29/40 ,  H01L27/088 ,  H01L29/78

CPC classification number: H01L29/404 ,  H01L27/088 ,  H01L29/7816

Abstract: A semiconductor device includes a semiconductor substrate, a gate structure, a source region, a drain region, and a plurality of field plates. The gate structure is disposed on the semiconductor substrate. The source region and the drain region are disposed in the semiconductor substrate and located at two opposite sides of the gate structure in a first direction respectively. The field plates are disposed on the semiconductor substrate. Each of the field plates is partly located above the gate structure and partly located between the gate structure and the drain region. The gate structure is electrically connected with at least one of the field plates, and the source region is electrically connected with at least one of the field plates.

公开(公告)号：US20220406902A1

公开(公告)日：2022-12-22

申请号：US17895042

申请日：2022-08-24

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Yi-Chieh Wang ,  Po-Chun Lai ,  Ke-Feng Lin ,  Chen-An Kuo ,  Ze-Wei Jhou

IPC: H01L29/40 ,  H01L27/088 ,  H01L29/78

Abstract: A semiconductor device includes a semiconductor substrate, a gate structure, a source region, a drain region, and a plurality of field plates. The gate structure is disposed on the semiconductor substrate. The source region and the drain region are disposed in the semiconductor substrate and located at two opposite sides of the gate structure in a first direction respectively. The field plates are disposed on the semiconductor substrate. Each of the field plates is partly located above the gate structure and partly located between the gate structure and the drain region. The gate structure is electrically connected with at least one of the field plates, and the source region is electrically connected with at least one of the field plates.

公开(公告)号：US20200266267A1

公开(公告)日：2020-08-20

申请号：US16358556

申请日：2019-03-19

Applicant: United Microelectronics Corp.

Inventor： HSIANG-HUA HSU ,  Liang-An Huang ,  Sheng-Chen Chung ,  Chen-An Kuo ,  Chiu-Te Lee ,  Chih-Chung Wang ,  Kuang-Hsiu Chen ,  Ke-Feng Lin ,  Yan-Huei Li ,  Kai-Ting Hu

IPC: H01L29/06 ,  H01L29/778 ,  H01L29/66 ,  H01L21/265

Abstract: A metal-oxide-semiconductor (MOS) transistor includes a substrate. The substrate has a plurality of trenches extending along a first direction and located on a top portion of the substrate. A gate structure line is located on the substrate and extends along a second direction intersecting with the first direction and crossing over the trenches. A first doped line is located in the substrate, located at a first side of the gate structure line, and crosses over the trenches. A second doped line is located in the substrate, located at a second side of the gate structure line, and crosses over the trenches.

公开(公告)号：US10297455B2

公开(公告)日：2019-05-21

申请号：US15292775

申请日：2016-10-13

Applicant: United Microelectronics Corp.

Inventor： Shih-Yin Hsiao ,  Shu-Wen Lin ,  Ke-Feng Lin ,  Hsin-Liang Liu ,  Chang-Lin Chen

IPC: H01L21/8234 ,  H01L21/28 ,  H01L29/06 ,  H01L29/423 ,  H01L29/78

Abstract: A method for forming a gate oxide layer on a substrate is provided, in which a region of the substrate is defined out by a shallow trench isolation (STI) structure. An oxide layer covers over the substrate and a mask layer with an opening to expose oxide layer corresponding to the region with an interface edge of the STI structure. The method includes forming a silicon spacer on a sidewall of the opening. A cleaning process is performed through the opening to expose the substrate at the region. An oxidation process is performed on the substrate at the region to form the gate oxide layer, wherein the silicon spacer is also oxidized to merge to an edge of the gate oxide layer.

公开(公告)号：US20170162721A1

公开(公告)日：2017-06-08

申请号：US14989814

申请日：2016-01-07

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Ke-Feng Lin ,  Hsuan-Po Liao ,  Ming-Shun Hsu ,  Chih-Chung Wang ,  Chiu-Te Lee ,  Shih-Teng Huang

IPC: H01L29/861 ,  H01L29/06

CPC classification number: H01L29/8615 ,  H01L29/0649 ,  H01L29/0692 ,  H01L29/861 ,  H01L29/8613

Abstract: A diode structure includes a rectangular first doping region, and a second doping region surrounds the first doping region wherein the first doping region and the second doping region are separated by a first isolation structure. A third doping region surrounds the second doping region wherein the second doping region and the third doping region are separated by a second isolation structure. The first isolation structure, the second doping region, the second isolation structure and the third doping region are arranged in a quadruple concentric rectangular ring surrounding the first doping region.

公开(公告)号：US08941175B2

公开(公告)日：2015-01-27

申请号：US13918994

申请日：2013-06-17

Applicant: United Microelectronics Corp.

Inventor： Wei-Lin Chen ,  Ke-Feng Lin ,  Chiu-Ling Lee ,  Chiu-Te Lee ,  Chih-Chung Wang ,  Hsuan-Po Liao

IPC: H01L29/06 ,  H01L29/772 ,  H01L27/088 ,  H01L27/092

CPC classification number: H01L29/7816 ,  H01L27/0207 ,  H01L29/0692 ,  H01L29/0696 ,  H01L29/4238 ,  H01L29/78

Abstract: A power array with a staggered arrangement for improving on-resistance and safe operating area of a device is provided. Each power array includes two or more rows with a plurality of parallel device units arranged along the row. Each device unit includes a source region, a drain region, and a gate disposed between the source region and the drain region, wherein each drain region is offset from the adjacent drain region of adjacent rows in a row direction.

Abstract translation: 提供具有交错布置的用于改善设备的导通电阻和安全操作区域的功率阵列。 每个功率阵列包括两行或更多行，具有沿行排列的多个并行设备单元。 每个器件单元包括源极区域，漏极区域和设置在源极区域和漏极区域之间的栅极，其中每个漏极区域在相邻行的相邻漏极区域沿行方向偏移。