公开(公告)号：US10177311B1

公开(公告)日：2019-01-08

申请号：US15782836

申请日：2017-10-12

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chao-Ching Hsieh ,  Chih-Chien Liu ,  Yu-Ru Yang ,  Hsiao-Pang Chou

IPC: G11C13/00 ,  H01L45/00 ,  H01L27/24

Abstract: A resistive random access memory (RRAM) cell includes a substrate, a transistor having a gate on the substrate and a source/drain region in the substrate, a first inter-layer dielectric layer covering the transistor, a contact plug disposed in the first inter-layer dielectric layer and landing on the source/drain region, a resistive material layer conformally covering a protruding upper end portion of the contact plug, and a top electrode on the resistive material layer.

公开(公告)号：US11011376B2

公开(公告)日：2021-05-18

申请号：US16242994

申请日：2019-01-08

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Hsiao-Pang Chou ,  Hon-Huei Liu ,  Ming-Chang Lu ,  Chin-Fu Lin ,  Yu-Cheng Tung

IPC: H01L21/76 ,  H01L21/02 ,  H01L29/20 ,  H01L29/06 ,  H01L21/308 ,  H01L21/306 ,  H01L23/00

Abstract: The present invention discloses a semiconductor structure with an epitaxial layer and method of manufacturing the same. The semiconductor structure with the epitaxial layer includes a substrate, a blocking layer on the substrate, multiple recesses formed in the substrate, wherein the recess extends along crystal faces of the substrate, and an epitaxial layer on the blocking layer, wherein the epitaxial layer is provided with a buried portion in each recess and an above-surface portion formed on the blocking layer.

公开(公告)号：US09899491B2

公开(公告)日：2018-02-20

申请号：US15182620

申请日：2016-06-15

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Po-Wen Su ,  Zhen Wu ,  Hsiao-Pang Chou ,  Chiu-Hsien Yeh ,  Shui-Yen Lu ,  Jian-Wei Chen

IPC: H01L29/51 ,  H01L21/82 ,  H01L27/088 ,  H01L29/66 ,  H01L29/40 ,  H01L21/8234 ,  H01L29/423

CPC classification number: H01L29/512 ,  H01L21/82345 ,  H01L21/823462 ,  H01L27/088 ,  H01L29/401 ,  H01L29/4236 ,  H01L29/4966 ,  H01L29/517 ,  H01L29/66545 ,  H01L29/66553 ,  H01L29/78

Abstract: A semiconductor device and a method of forming the same, the semiconductor device include a substrate, and a first gate structure and a second gate structure disposed on the substrate. The first gate structure includes a barrier layer, a first work function layer, a second work function layer and a conductive layer stacked one over another on the substrate. The second gate structure includes the barrier layer, a portion of the first work function layer and the conductive layer stacked one over another on the substrate, wherein the portion of the first work function layer has a smaller thickness than a thickness of the first work function layer.

公开(公告)号：US20170330952A1

公开(公告)日：2017-11-16

申请号：US15182620

申请日：2016-06-15

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Po-Wen Su ,  Zhen Wu ,  Hsiao-Pang Chou ,  Chiu-Hsien Yeh ,  Shui-Yen Lu ,  Jian-Wei Chen

IPC: H01L29/51 ,  H01L29/423 ,  H01L29/40 ,  H01L27/088 ,  H01L21/8234 ,  H01L29/66

CPC classification number: H01L29/512 ,  H01L21/82345 ,  H01L21/823462 ,  H01L27/088 ,  H01L29/401 ,  H01L29/4236 ,  H01L29/4966 ,  H01L29/517 ,  H01L29/66545 ,  H01L29/66553 ,  H01L29/78

Abstract: A semiconductor device and a method of forming the same, the semiconductor device include a substrate, and a first gate structure and a second gate structure disposed on the substrate. The first gate structure includes a barrier layer, a first work function layer, a second work function layer and a conductive layer stacked one over another on the substrate. The second gate structure includes the barrier layer, a portion of the first work function layer and the conductive layer stacked one over another on the substrate, wherein the portion of the first work function layer has a smaller thickness than a thickness of the first work function layer.

公开(公告)号：US20190259762A1

公开(公告)日：2019-08-22

申请号：US16402137

申请日：2019-05-02

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Hsiao-Pang Chou ,  Yu-Ru Yang ,  Chih-Chien Liu ,  Chao-Ching Hsieh ,  Chun-Hsien Lin

IPC: H01L27/105 ,  H01L43/12 ,  H01L43/08 ,  G11C11/16 ,  H01L43/10 ,  H01L23/528 ,  H01L43/02

Abstract: A magnetic tunnel junction (MTJ) structure of a magnetic random access memory (MRAM) cell includes an insulation layer, a patterned MTJ film stack, an aluminum oxide protection layer, an interlayer dielectric, and a connection structure. The patterned MTJ film stack is disposed on the insulation layer. The aluminum oxide protection layer is disposed on a sidewall of the patterned MTJ film stack, and the aluminum oxide protection layer includes an aluminum film oxidized by an oxidation treatment. The interlayer dielectric covers the aluminum oxide protection layer and the patterned MTJ film stack. The connection structure penetrates the interlayer dielectric above the patterned MTJ film stack, and the connection structure is electrically connected to a topmost portion of the patterned MTJ film stack.

公开(公告)号：US10312238B2

公开(公告)日：2019-06-04

申请号：US15803852

申请日：2017-11-06

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Hsiao-Pang Chou ,  Yu-Ru Yang ,  Chih-Chien Liu ,  Chao-Ching Hsieh ,  Chun-Hsien Lin

IPC: H01L43/12 ,  H01L43/02 ,  H01L27/02 ,  H01L27/22 ,  H01L27/105 ,  G11C11/16 ,  H01L23/528 ,  H01L43/10 ,  H01L43/08

Abstract: A manufacturing method of a magnetic random access memory (MRAM) cell includes the following steps. A magnetic tunnel junction (MTJ) film stack is formed on an insulation layer. An aluminum mask layer is formed on the MTJ film stack. A hard mask layer is formed on the aluminum mask layer. An ion beam etching (IBE) process is performed with the aluminum mask layer and the hard mask layer as a mask. The MTJ film stack is patterned to be a patterned MTJ film stack by the IBE process, and at least apart of the aluminum mask layer is bombarded by the IBE process for forming an aluminum film on a sidewall of the patterned MTJ film stack. An oxidation treatment is performed, and the aluminum film is oxidized to be an aluminum oxide protection layer on the sidewall of the patterned MTJ film stack by the oxidation treatment.

公开(公告)号：US20190139959A1

公开(公告)日：2019-05-09

申请号：US15803852

申请日：2017-11-06

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Hsiao-Pang Chou ,  Yu-Ru Yang ,  Chih-Chien Liu ,  Chao-Ching Hsieh ,  Chun-Hsien Lin

IPC: H01L27/105 ,  G11C11/16 ,  H01L23/528 ,  H01L43/12 ,  H01L43/02 ,  H01L43/08 ,  H01L43/10

Abstract: A manufacturing method of a magnetic random access memory (MRAM) cell includes the following steps. A magnetic tunnel junction (MTJ) film stack is formed on an insulation layer. An aluminum mask layer is formed on the MTJ film stack. A hard mask layer is formed on the aluminum mask layer. An ion beam etching (IBE) process is performed with the aluminum mask layer and the hard mask layer as a mask. The MTJ film stack is patterned to be a patterned MTJ film stack by the IBE process, and at least apart of the aluminum mask layer is bombarded by the IBE process for forming an aluminum film on a sidewall of the patterned MTJ film stack. An oxidation treatment is performed, and the aluminum film is oxidized to be an aluminum oxide protection layer on the sidewall of the patterned MTJ film stack by the oxidation treatment.

公开(公告)号：US10269868B1

公开(公告)日：2019-04-23

申请号：US15818673

申请日：2017-11-20

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Yu-Ru Yang ,  Chih-Chien Liu ,  Chao-Ching Hsieh ,  Hsiao-Pang Chou

IPC: H01L47/00 ,  H01L27/24 ,  H01L45/00 ,  H01L29/66 ,  H01L29/78 ,  H01L29/08 ,  H01L29/51

Abstract: The present invention provides a semiconductor structure, the semiconductor structure includes a fin transistor (fin filed effect transistor, finFET) located on a substrate, the fin transistor includes a gate structure crossing over a fin structure, and at least one source/drain region. And a resistive random access memory (RRAM) includes a lower electrode, a resistance switching layer and a top electrode being sequentially located on the source/drain region and electrically connected to the fin transistor.

公开(公告)号：US10043882B2

公开(公告)日：2018-08-07

申请号：US15863990

申请日：2018-01-08

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Po-Wen Su ,  Zhen Wu ,  Hsiao-Pang Chou ,  Chiu-Hsien Yeh ,  Shui-Yen Lu ,  Jian-Wei Chen

IPC: H01L29/51 ,  H01L29/40 ,  H01L29/423 ,  H01L21/82 ,  H01L21/8234 ,  H01L27/088 ,  H01L29/66

Abstract: A method of forming a semiconductor device includes the following steps. A substrate is provided, and the substrate has a first region. A barrier layer is then formed on the first region of the substrate. A first work function layer is formed on the barrier layer. An upper half portion of the first work function layer is converted into a non-volatile material layer. The non-volatile material layer is removed and a lower half portion of the first work function layer is kept.

公开(公告)号：US09263540B1

公开(公告)日：2016-02-16

申请号：US14852624

申请日：2015-09-13

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Ching-Ling Lin ,  Chih-Sen Huang ,  Shih-Fang Tzou ,  Chien-Ting Lin ,  Yi-Wei Chen ,  Shi-Xiong Lin ,  Chun-Lung Chen ,  Kun-Yuan Liao ,  Feng-Yi Chang ,  Hsiao-Pang Chou ,  Chia-Lin Lu

IPC: H01L27/088 ,  H01L29/49 ,  H01L29/423

CPC classification number: H01L29/4966 ,  H01L21/28088 ,  H01L21/823456 ,  H01L21/82385 ,  H01L27/088 ,  H01L29/4232 ,  H01L29/517 ,  H01L29/66545

Abstract: The metal gate structure includes at least a substrate, a dielectric layer, first and second trenches, first metal layer and second metal layers, and two cap layers. In particular, the dielectric layer is disposed on the substrate, and the first and second trenches are disposed in the dielectric layer. The width of the first trench is less than the width of the second trench. The first and second metal layers are respectively disposed in the first trench and the second trench, and the height of the first metal layer is less than or equal to the height of the second metal layer. The cap layers are respectively disposed in a top surface of the first metal layer and a top surface of the second metal layer.

Abstract translation: 金属栅极结构至少包括衬底，电介质层，第一和第二沟槽，第一金属层和第二金属层以及两个盖层。 特别地，介电层设置在基板上，并且第一和第二沟槽设置在电介质层中。 第一沟槽的宽度小于第二沟槽的宽度。 第一和第二金属层分别设置在第一沟槽和第二沟槽中，第一金属层的高度小于或等于第二金属层的高度。 盖层分别设置在第一金属层的顶表面和第二金属层的顶表面中。