公开(公告)号：US12002681B2

公开(公告)日：2024-06-04

申请号：US17515541

申请日：2021-10-31

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Ming-Hua Chang ,  Kun-Yuan Liao ,  Lung-En Kuo ,  Chih-Tung Yeh

IPC: H01L21/308 ,  H01L21/306 ,  H01L29/20 ,  H01L29/205 ,  H01L29/66 ,  H01L29/778

CPC classification number: H01L21/3086 ,  H01L21/30621 ,  H01L21/3081 ,  H01L21/3085 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/66462 ,  H01L29/7786

Abstract: A fabricating method of a high electron mobility transistor includes providing a substrate. Then, a channel layer, an active layer, a P-type group III-V compound material layer, a metal compound material layer, a hard mask material layer and a patterned photoresist are formed to cover the substrate. Later, a dry etching process is performed to etch the hard mask material layer and the metal compound material layer to form a hard mask and a metal compound layer by taking the patterned photoresist as a mask. During the dry etching process, a spacer generated by by-products is formed to surround the patterned photoresist, the hard mask and the metal compound layer. After the dry etching process, the P-type group III-V compound material layer is etched by taking the spacer and the patterned photoresist as a mask.

公开(公告)号：US20230320229A1

公开(公告)日：2023-10-05

申请号：US18195383

申请日：2023-05-10

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Hui-Lin Wang ,  Tai-Cheng Hou ,  Wei-Xin Gao ,  Fu-Yu Tsai ,  Chin-Yang Hsieh ,  Chen-Yi Weng ,  Jing-Yin Jhang ,  Bin-Siang Tsai ,  Kun-Ju Li ,  Chih-Yueh Li ,  Chia-Lin Lu ,  Chun-Lung Chen ,  Kun-Yuan Liao ,  Yu-Tsung Lai ,  Wei-Hao Huang

IPC: H10N50/10 ,  H01L21/768 ,  H01L21/762 ,  H10N50/80

CPC classification number: H10N50/10 ,  H01L21/762 ,  H01L21/76802 ,  H10N50/80 ,  H10N35/01

Abstract: A method for fabricating semiconductor device includes the steps of: forming a first magnetic tunneling junction (MTJ) on a substrate; forming a first ultra low-k (ULK) dielectric layer on the first MTJ; performing a first etching process to remove part of the first ULK dielectric layer and form a damaged layer on the first ULK dielectric layer; and forming a second ULK dielectric layer on the damaged layer.

公开(公告)号：US11778922B2

公开(公告)日：2023-10-03

申请号：US17533003

申请日：2021-11-22

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Hui-Lin Wang ,  Tai-Cheng Hou ,  Wei-Xin Gao ,  Fu-Yu Tsai ,  Chin-Yang Hsieh ,  Chen-Yi Weng ,  Jing-Yin Jhang ,  Bin-Siang Tsai ,  Kun-Ju Li ,  Chih-Yueh Li ,  Chia-Lin Lu ,  Chun-Lung Chen ,  Kun-Yuan Liao ,  Yu-Tsung Lai ,  Wei-Hao Huang

IPC: H01L41/47 ,  H10N50/10 ,  H01L21/768 ,  H01L21/762 ,  H10N50/80 ,  H10N35/01

CPC classification number: H10N50/10 ,  H01L21/762 ,  H01L21/76802 ,  H10N50/80 ,  H10N35/01

Abstract: A method for fabricating semiconductor device includes first forming a first magnetic tunneling junction (MTJ) and a second MTJ on a substrate, performing an atomic layer deposition (ALD) process or a high-density plasma (HDP) process to form a passivation layer on the first MTJ and the second MTJ, performing an etching process to remove the passivation layer adjacent to the first MTJ and the second MTJ, and then forming an ultra low-k (ULK) dielectric layer on the passivation layer.

公开(公告)号：US20230112917A1

公开(公告)日：2023-04-13

申请号：US17515541

申请日：2021-10-31

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Ming-Hua Chang ,  Kun-Yuan Liao ,  Lung-En Kuo ,  Chih-Tung Yeh

IPC: H01L21/308 ,  H01L29/20 ,  H01L29/205 ,  H01L29/778 ,  H01L21/306 ,  H01L29/66

Abstract: A fabricating method of a high electron mobility transistor includes providing a substrate. Then, a channel layer, an active layer, a P-type group III-V compound material layer, a metal compound material layer, a hard mask material layer and a patterned photoresist are formed to cover the substrate. Later, a dry etching process is performed to etch the hard mask material layer and the metal compound material layer to form a hard mask and a metal compound layer by taking the patterned photoresist as a mask. During the dry etching process, a spacer generated by by-products is formed to surround the patterned photoresist, the hard mask and the metal compound layer. After the dry etching process, the P-type group III-V compound material layer is etched by taking the spacer and the patterned photoresist as a mask.

公开(公告)号：US10062584B1

公开(公告)日：2018-08-28

申请号：US15613395

申请日：2017-06-05

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Kuan-Lin Chen ,  An-Chi Liu ,  Kun-Yuan Liao ,  Cheng-Pu Chiu

IPC: H01L21/336 ,  H01L21/67 ,  H01L23/525 ,  H01L23/29 ,  H01L21/02 ,  H01L21/302

CPC classification number: H01L21/67063 ,  H01L21/02008 ,  H01L21/02326 ,  H01L21/302 ,  H01L21/3086 ,  H01L21/67023 ,  H01L23/29 ,  H01L23/5256 ,  H01L29/785

Abstract: A method for forming a semiconductor structure is disclosed. The method includes the following steps. A first pattern structure and a second pattern structure are formed on a substrate. The second pattern structure is wider than the first pattern structure. Spacers are formed on sidewall surfaces of the first pattern structure and the second pattern structure. An oxidizing treatment step is performed to the spacers having a width gradually increased from tops of the spacers. A pattern defined with the spacers is transferred into the substrate after the oxidizing treatment step.

公开(公告)号：US09793382B2

公开(公告)日：2017-10-17

申请号：US15470905

申请日：2017-03-28

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chia-Lin Lu ,  Chun-Hsien Lin ,  Chun-Lung Chen ,  Kun-Yuan Liao ,  Feng-Yi Chang

IPC: H01L29/08 ,  H01L29/66 ,  H01L29/06 ,  H01L29/16 ,  H01L29/161 ,  H01L29/78

CPC classification number: H01L29/66795 ,  H01L21/26513 ,  H01L21/28525 ,  H01L21/76897 ,  H01L23/535 ,  H01L29/0653 ,  H01L29/0847 ,  H01L29/16 ,  H01L29/1608 ,  H01L29/161 ,  H01L29/165 ,  H01L29/24 ,  H01L29/41791 ,  H01L29/7848 ,  H01L29/785

Abstract: A semiconductor device and a method of manufacturing the same, the semiconductor device includes a fin shaped structure, a gate structure, an epitaxial layer, a germanium layer, an interlayer dielectric layer and a first plug. The fin shaped structure is disposed on a substrate. The gate structure is formed across the fin shaped structure. The epitaxial layer is disposed in the fin shaped structure adjacent to the gate structure. The germanium layer is disposed on the epitaxial layer. The interlayer dielectric layer covers the substrate and the fin shaped structure. The first plug is disposed in the interlayer dielectric layer to contact the germanium layer.

公开(公告)号：US09673100B2

公开(公告)日：2017-06-06

申请号：US14536696

申请日：2014-11-10

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Ching-Wen Hung ,  Chih-Sen Huang ,  Yi-Wei Chen ,  Chien-Ting Lin ,  Shih-Fang Tzou ,  Chia-Lin Lu ,  Chun-Lung Chen ,  Kun-Yuan Liao ,  Feng-Yi Chang ,  Chieh-Te Chen

IPC: H01L21/8234 ,  H01L21/311 ,  H01L29/06 ,  H01L27/088 ,  H01L29/49 ,  H01L21/768

CPC classification number: H01L21/823437 ,  H01L21/31144 ,  H01L21/76816 ,  H01L21/76895 ,  H01L21/76897 ,  H01L21/823431 ,  H01L21/823475 ,  H01L27/088 ,  H01L27/0886 ,  H01L29/0653 ,  H01L29/495 ,  H01L29/4966

Abstract: A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate; forming a plurality of gate structures on the substrate; forming a first stop layer on the gate structures; forming a second stop layer on the first stop layer; forming a first dielectric layer on the second stop layer; forming a plurality of first openings in the first dielectric layer to expose the second stop layer; forming a plurality of second openings in the first dielectric layer and the second stop layer to expose the first stop layer; and removing part of the second stop layer and part of the first stop layer to expose the gate structures.

公开(公告)号：US20170084722A1

公开(公告)日：2017-03-23

申请号：US14919716

申请日：2015-10-21

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chia-Lin Lu ,  Chun-Lung Chen ,  Kun-Yuan Liao ,  Feng-Yi Chang ,  Wei-Hao Huang

IPC: H01L29/66 ,  H01L21/768 ,  H01L29/78 ,  H01L21/265

CPC classification number: H01L29/66795 ,  H01L21/26513 ,  H01L21/76897 ,  H01L29/41791 ,  H01L29/7848 ,  H01L29/785

Abstract: A semiconductor device and a method of forming the same, the semiconductor device includes a fin shaped structure, agate structure, an epitaxial layer, an interlayer dielectric layer, a first plug and a protection layer. The fin shaped structure is disposed on a substrate, and the gate structure is across the fin shaped structure. The epitaxial layer is disposed in the fin shaped structure, adjacent to the gate structure. The interlayer dielectric layer covers the substrate and the fin shaped structure. The first plug is formed in the interlayer dielectric layer, wherein the first plug is electrically connected to the epitaxial layer. The protection layer is disposed between the first plug and the gate structure.

公开(公告)号：US20240006525A1

公开(公告)日：2024-01-04

申请号：US17870746

申请日：2022-07-21

Applicant: United Microelectronics Corp.

Inventor： Yuan Yu Chung ,  Bo-Yu Chen ,  You-Jia Chang ,  Lung-En Kuo ,  Kun-Yuan Liao ,  Chun-Lung Chen

IPC: H01L29/778 ,  H01L29/66 ,  H01L29/20 ,  H01L29/205

CPC classification number: H01L29/7786 ,  H01L29/66462 ,  H01L29/2003 ,  H01L29/205

Abstract: A method for manufacturing a high electron mobility transistor device includes providing a substrate. A channel material, a barrier material, a polarization adjustment material and a conductive material are formed on the substrate. A hard mask layer is formed on the conductive material. The conductive material is patterned to form a conductive layer by using the hard mask layer as a mask. A plurality of protection layers is formed on sidewalls of the hard mask layer and the conductive layer. The polarization adjustment material is patterned to form a polarization adjustment layer by using the plurality of protection layers and the hard mask as masks. The plurality of protection layers is removed. A portion of the conductive layer is laterally removed to form a first gate conductive layer.

公开(公告)号：US20210151666A1

公开(公告)日：2021-05-20

申请号：US17141194

申请日：2021-01-04

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Hui-Lin Wang ,  Tai-Cheng Hou ,  Wei-Xin Gao ,  Fu-Yu Tsai ,  Chin-Yang Hsieh ,  Chen-Yi Weng ,  Jing-Yin Jhang ,  Bin-Siang Tsai ,  Kun-Ju Li ,  Chih-Yueh Li ,  Chia-Lin Lu ,  Chun-Lung Chen ,  Kun-Yuan Liao ,  Yu-Tsung Lai ,  Wei-Hao Huang

IPC: H01L43/08 ,  H01L21/768 ,  H01L43/02 ,  H01L21/762

Abstract: A semiconductor device includes a first magnetic tunneling junction (MTJ) and a second MTJ on a substrate, a passivation layer on the first MTJ and the second MTJ, and an ultra low-k (ULK) dielectric layer on the passivation layer. Preferably, a top surface of the passivation layer between the first MTJ and the second MTJ is lower than a top surface of the passivation layer directly on top of the first MTJ.