公开(公告)号：US11877433B2

公开(公告)日：2024-01-16

申请号：US16931397

申请日：2020-07-16

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Pin-Hong Chen ,  Tsun-Min Cheng ,  Chih-Chieh Tsai ,  Tzu-Chieh Chen ,  Kai-Jiun Chang ,  Chia-Chen Wu ,  Yi-An Huang ,  Yi-Wei Chen ,  Hsin-Fu Huang ,  Chi-Mao Hsu ,  Li-Wei Feng ,  Ying-Chiao Wang ,  Chung-Yen Feng

IPC: H01L23/48 ,  H10B12/00 ,  H01L23/532 ,  H01L23/522 ,  H01L21/285 ,  H01L23/528 ,  H01L21/768 ,  H01L49/02 ,  H01L21/02

CPC classification number: H10B12/0335 ,  H01L21/28568 ,  H01L21/7684 ,  H01L21/7685 ,  H01L21/76831 ,  H01L21/76876 ,  H01L21/76877 ,  H01L23/528 ,  H01L23/5226 ,  H01L23/53266 ,  H01L28/91 ,  H10B12/31 ,  H10B12/315 ,  H01L21/0217 ,  H01L21/0228

Abstract: The present invention provides a storage node contact structure of a memory device comprising a substrate having a dielectric layer comprising a recess, a first tungsten metal layer, and an adhesive layer on the first tungsten metal layer and a second tungsten metal layer on the adhesive layer, wherein the second tungsten metal layer is formed by a physical vapor deposition (PVD).

公开(公告)号：US10651040B2

公开(公告)日：2020-05-12

申请号：US15986797

申请日：2018-05-22

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Tzu-Hao Liu ,  Yi-Wei Chen ,  Tsun-Min Cheng ,  Kai-Jiun Chang ,  Chia-Chen Wu ,  Yi-An Huang ,  Po-Chih Wu ,  Pin-Hong Chen ,  Chun-Chieh Chiu ,  Tzu-Chieh Chen ,  Chih-Chien Liu ,  Chih-Chieh Tsai ,  Ji-Min Lin

IPC: H01L21/28 ,  G11C11/4097 ,  H01L27/108

Abstract: A method for fabricating semiconductor device includes the steps of: forming a titanium nitride (TiN) layer on a silicon layer; performing a first treatment process by reacting the TiN layer with dichlorosilane (DCS) to form a titanium silicon nitride (TiSiN) layer; forming a conductive layer on the TiSiN layer; and patterning the conductive layer, the metal silicon nitride layer, and the silicon layer to form a gate structure.

公开(公告)号：US20190319031A1

公开(公告)日：2019-10-17

申请号：US15972216

申请日：2018-05-06

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Pin-Hong Chen ,  Yi-Wei Chen ,  Chun-Chieh Chiu ,  Chih-Chieh Tsai ,  Tzu-Chieh Chen ,  Chih-Chien Liu

IPC: H01L27/108 ,  H01L21/285 ,  H01L21/28 ,  H01L21/22

Abstract: The present invention provides a bit line gate structure comprising a substrate, an amorphous silicon layer disposed on the substrate, a first doped region located in the amorphous silicon layer, a titanium silicon nitride (TiSiN) layer, located in the amorphous silicon layer, and a second doped region located in the TiSiN layer, the first doped region contacts the second doped region directly.

公开(公告)号：US20190252390A1

公开(公告)日：2019-08-15

申请号：US15900800

申请日：2018-02-21

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Yi-Wei Chen ,  Pin-Hong Chen ,  Tsun-Min Cheng ,  Chun-Chieh Chiu

IPC: H01L27/108 ,  H01L23/532 ,  H01L21/3215 ,  H01L21/285

Abstract: A method of forming a bit line gate structure of a dynamic random access memory (DRAM) includes the following steps. A polysilicon layer is formed on a substrate. A sacrificial layer is formed on the polysilicon layer. An implantation process is performed on the sacrificial layer and the polysilicon layer. The sacrificial layer is removed. A metal stack is formed on the polysilicon layer. The present invention also provides another method of forming a bit line gate structure of a dynamic random access memory (DRAM) including the following steps. A polysilicon layer is formed on a substrate. A plasma doping process is performed on a surface of the polysilicon layer. A metal stack is formed on the surface of the polysilicon layer.

公开(公告)号：US20190249297A1

公开(公告)日：2019-08-15

申请号：US15919191

申请日：2018-03-12

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Chih-Chien Liu ,  Pin-Hong Chen ,  Tsun-Min Cheng ,  Yi-Wei Chen

IPC: C23C16/455 ,  H01L21/768 ,  H01L23/544 ,  H01L21/285 ,  H01L21/321 ,  C23C16/02 ,  C23C16/34

Abstract: A semiconductor device includes a substrate, a dielectric layer, a first tungsten layer, an interface layer and a second tungsten layer. The dielectric layer is disposed on the substrate and has a first opening and a second opening larger than the first opening. The first tungsten layer is filled in the first opening and is disposed in the second opening. The second tungsten layer is disposed on the first tungsten layer in the second opening, wherein the second tungsten layer has a grain size gradually increased from a bottom surface to a top surface. The interface layer is disposed between the first tungsten layer and the second tungsten layer, wherein the interface layer comprises a nitrogen containing layer. The present invention further includes a method of forming a semiconductor device.

公开(公告)号：US10211211B1

公开(公告)日：2019-02-19

申请号：US15830006

申请日：2017-12-04

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Kai-Jiun Chang ,  Yi-Wei Chen ,  Tsun-Min Cheng ,  Chia-Chen Wu ,  Pin-Hong Chen ,  Chih-Chieh Tsai ,  Tzu-Chieh Chen ,  Yi-An Huang

IPC: H01L29/423 ,  H01L29/49 ,  H01L29/778 ,  H01L29/45 ,  H01L21/768 ,  H01L21/3205 ,  H01L21/4763 ,  H01L27/108 ,  H01L23/532 ,  H01L21/02 ,  H01L23/535

Abstract: A method for fabricating a buried word line (BWL) of a dynamic random access memory (DRAM) includes the steps of: forming a trench in a substrate; forming a barrier layer in the trench; performing a soaking process to reduce chlorine concentration in the barrier layer; and forming a conductive layer to fill the trench.

公开(公告)号：US20180350673A1

公开(公告)日：2018-12-06

申请号：US15927106

申请日：2018-03-21

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Pin-Hong Chen ,  Chih-Chieh Tsai ,  Tzu-Chieh Chen ,  Kai-Jiun Chang ,  Chia-Chen Wu ,  Yi-An Huang ,  Tsun-Min Cheng ,  Yi-Wei Chen ,  Wei-Hsin Liu

IPC: H01L21/768 ,  H01L21/324 ,  H01L23/532

Abstract: A method of forming a semiconductor structure includes providing a material layer having a recess formed therein. A first tungsten metal layer is formed at a first temperature and fills the recess. An anneal process at a second temperature is then performed, wherein the second temperature is higher than the first temperature.

公开(公告)号：US20180301458A1

公开(公告)日：2018-10-18

申请号：US15922899

申请日：2018-03-15

Applicant: UNITED MICROELECTRONICS CORP. ,  Fujian Jinhua Integrated Circuit Co., Ltd.

Inventor： Pin-Hong Chen ,  Tsun-Min Cheng ,  Chih-Chieh Tsai ,  Tzu-Chieh Chen ,  Kai-Jiun Chang ,  Chia-Chen Wu ,  Yi-An Huang ,  Yi-Wei Chen ,  Hsin-Fu Huang ,  Chi-Mao Hsu ,  Li-Wei Feng ,  Ying-Chiao Wang ,  Chung-Yen Feng

IPC: H01L27/108 ,  H01L23/532 ,  H01L23/522 ,  H01L21/285 ,  H01L23/528 ,  H01L21/768

Abstract: The present invention provides a storage node contact structure of a memory device comprising a substrate having a dielectric layer comprising a recess, a first tungsten metal layer, and an adhesive layer on the first tungsten metal layer and a second tungsten metal layer on the adhesive layer, wherein the second tungsten metal layer is formed by a physical vapor deposition (PVD).

公开(公告)号：US09755047B2

公开(公告)日：2017-09-05

申请号：US14924532

申请日：2015-10-27

Applicant: United Microelectronics Corp.

Inventor： Pin-Hong Chen ,  Kuo-Chih Lai ,  Chia-Chang Hsu ,  Chun-Chieh Chiu ,  Li-Han Chen ,  Min-Chuan Tsai ,  Kuo-Chin Hung ,  Wei-Chuan Tsai ,  Hsin-Fu Huang ,  Chi-Mao Hsu

IPC: H01L27/088 ,  H01L29/66 ,  H01L29/78 ,  H01L21/285

CPC classification number: H01L29/665 ,  H01L21/28518 ,  H01L21/76843 ,  H01L21/76855 ,  H01L21/76897 ,  H01L29/267 ,  H01L29/45 ,  H01L29/7845 ,  H01L29/785

Abstract: A semiconductor process is described. A silicon-phosphorus (SiP) epitaxial layer is formed serving as a source/drain (S/D) region. A crystalline metal silicide layer is formed directly on the SiP epitaxial layer and thus prevents oxidation of the SiP epitaxial layer. A contact plug is formed over the crystalline metal silicide layer.

公开(公告)号：US09685316B2

公开(公告)日：2017-06-20

申请号：US13775273

申请日：2013-02-25

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chia Chang Hsu ,  Kuo-Chih Lai ,  Chun-Ling Lin ,  Bor-Shyang Liao ,  Pin-Hong Chen ,  Shu Min Huang ,  Min-Chung Cheng ,  Chi-Mao Hsu

IPC: H01L21/302 ,  B44C1/22 ,  C03C15/00 ,  C03C25/68 ,  C23F1/00 ,  H01L21/02 ,  H01L21/3213 ,  H01L21/311 ,  H01L21/768 ,  H01L21/67 ,  H01L21/3065 ,  H01L21/285

CPC classification number: H01L21/02063 ,  H01L21/28518 ,  H01L21/3065 ,  H01L21/31111 ,  H01L21/31116 ,  H01L21/32136 ,  H01L21/6708 ,  H01L21/67109 ,  H01L21/76804 ,  H01L21/76814

Abstract: A semiconductor process includes the following steps. A wafer on a pedestal is provided. The pedestal is lifted to approach a heating source and an etching process is performed on the wafer. An annealing process is performed on the wafer by the heating source. In another way, a wafer on a pedestal, and a heating source on a same side of the wafer as the pedestal are provided. An etching process is performed on the wafer by setting the temperature difference between the heating source and the pedestal larger than 180° C.