Patents by Inventor Wei-Chuan Tsai

Wei-Chuan Tsai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11972537
    Abstract: A method for flattening a three-dimensional shoe upper template is provided. The method includes providing a three-dimensional last model, obtaining a three-dimensional grid model, obtaining a three-dimensional thickened grid model, obtaining a two-dimensional initial-value grid model, and obtaining a two-dimensional grid model with the smallest energy value. A system and a non-transitory computer-readable medium for performing the method are also provided. The method makes it possible to precisely flatten a three-dimensional last model with a non-developable surface and thereby convert the three-dimensional last model into a two-dimensional grid model.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: April 30, 2024
    Assignee: YU JUNG CHANG TECHNOLOGY CO., LTD.
    Inventors: Chih-Chuan Chen, Wei-Hsiang Tsai, Chin-Yu Chen, Ching-Cherng Sun, Jann-Long Chern, Yu-Kai Lin
  • Patent number: 11968906
    Abstract: A method for fabricating a semiconductor device includes the steps of: forming a first inter-metal dielectric (IMD) layer on a substrate; forming a contact hole in the first IMD layer; forming a bottom electrode layer in the contact hole; forming a magnetic tunneling junction (MTJ) stack on the bottom electrode layer; and removing the MTJ stack and the bottom electrode layer to form a MTJ on a bottom electrode. Preferably, the bottom electrode protrudes above a top surface of the first IMD layer.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: April 23, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Jin-Yan Chiou, Wei-Chuan Tsai, Hsin-Fu Huang, Yen-Tsai Yi, Hsiang-Wen Ke
  • Patent number: 11942418
    Abstract: A semiconductor structure includes a combined feature, a protection layer and a polymeric layer. The combined feature includes a passivation layer, an interconnecting structure disposed on the passivation layer, and a dielectric layer disposed on the passivation layer and the interconnecting structure. The protection layer is disposed on the dielectric layer, and is oxide-and-nitride based. The polymeric layer is disposed on the protection layer, and is separated from the interconnecting structure by the protection layer. A method of making a semiconductor structure is also provided.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: March 26, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Po-Chuan Tsai, Wei-Ken Lin
  • Publication number: 20240088293
    Abstract: An n-type metal oxide semiconductor transistor includes a gate structure, two source/drain regions, two amorphous portions and a silicide. The gate structure is disposed on a substrate. The two source/drain regions are disposed in the substrate and respectively located at two sides of the gate structure, wherein at least one of the source/drain regions is formed with a dislocation. The two amorphous portions are respectively disposed in the two source/drain regions. The silicide is disposed on the two source/drain regions, wherein at least one portion of the silicide overlaps the two amorphous portions.
    Type: Application
    Filed: October 5, 2022
    Publication date: March 14, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Chun-Ya Chiu, Ssu-I Fu, Chin-Hung Chen, Jin-Yan Chiou, Wei-Chuan Tsai, Yu-Hsiang Lin
  • Publication number: 20230387280
    Abstract: A method for fabricating high electron mobility transistor (HEMT) includes the steps of forming a buffer layer on a substrate, forming a barrier layer on the buffer layer, forming a p-type semiconductor layer on the barrier layer, forming a titanium nitride (TiN) layer on the p-type semiconductor layer as a nitrogen to titanium (N/Ti) ratio of the TiN layer is greater than 1, forming a passivation layer on the TiN layer and the barrier layer, removing the passivation layer to form an opening, forming a gate electrode in the opening, and then forming a source electrode and a drain electrode adjacent to two sides of the gate electrode on the buffer layer.
    Type: Application
    Filed: June 28, 2022
    Publication date: November 30, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Yen-Tsai Yi, Wei-Chuan Tsai, Jin-Yan Chiou, Hsiang-Wen Ke
  • Publication number: 20230125856
    Abstract: A method for fabricating a semiconductor device includes the steps of forming an inter-metal dielectric (IMD) layer on a substrate, forming a trench in the IMD layer, forming a barrier layer in the trench, forming a nucleation layer on the barrier layer, performing an anneal process to form a silicide layer, forming a bulk layer on the silicide layer, and forming a magnetic tunneling junction (MTJ) on the bulk layer.
    Type: Application
    Filed: November 23, 2021
    Publication date: April 27, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Hsiang-Wen Ke, Wei-Chuan Tsai, Yen-Tsai Yi, Jin-Yan Chiou
  • Publication number: 20230094638
    Abstract: A method for fabricating semiconductor device includes the steps of first forming a gate structure on a substrate, forming a source/drain region adjacent to two sides of the gate structure, forming an epitaxial layer on the source/drain region, forming an interlayer dielectric (ILD) layer on the gate structure, forming a contact hole in the ILD layer to expose the epitaxial layer, forming a low stress metal layer in the contact hole, forming a barrier layer on the low stress metal layer, and forming an anneal process to form a first silicide layer and a second silicide layer.
    Type: Application
    Filed: October 26, 2021
    Publication date: March 30, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Jin-Yan Chiou, Wei-Chuan Tsai, Yen-Tsai Yi, Hsiang-Wen Ke
  • Publication number: 20220384710
    Abstract: A method for fabricating a magnetic random access memory (MRAM) device includes the steps of first forming a magnetic tunneling junction (MTJ) stack on a substrate, forming a first top electrode on the MTJ stack, and then forming a second top electrode on the first top electrode. Preferably, the first top electrode includes a gradient concentration while the second top electrode includes a non-gradient concentration.
    Type: Application
    Filed: June 29, 2021
    Publication date: December 1, 2022
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Yen-Tsai Yi, Wei-Chuan Tsai, Jin-Yan Chiou, Hsiang-Wen Ke
  • Patent number: 11450564
    Abstract: A method for fabricating semiconductor device includes the steps of: forming a gate structure on a substrate; forming a source/drain region adjacent to two sides of the gate structure; forming an interlayer dielectric (ILD) layer on the gate structure; forming a contact hole in the ILD layer to expose the source/drain region; forming a barrier layer in the contact hole; performing an anneal process; and performing a plasma treatment process to inject nitrogen into the contact hole.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: September 20, 2022
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Jin-Yan Chiou, Wei-Chuan Tsai, Yen-Tsai Yi, Li-Han Chen, Hsiang-Wen Ke
  • Publication number: 20220122915
    Abstract: A semiconductor structure includes a substrate; a first inter-layer dielectric (ILD) layer on the substrate; an etch stop layer on the first ILD layer; a second inter-layer dielectric (ILD) layer on the etch stop layer; and a copper damascene interconnect layer disposed in the first ILD layer. A tungsten via structure is disposed in the second ILD layer and the etch stop layer, and is electrically connected to the copper damascene interconnect layer. The tungsten via structure includes a tungsten layer and a barrier layer surrounding the tungsten layer. An intermetallic layer is disposed between the barrier layer and the copper damascene interconnect layer.
    Type: Application
    Filed: October 19, 2020
    Publication date: April 21, 2022
    Inventors: Yen-Tsai Yi, Wei-Chuan Tsai, Jin-Yan Chiou, Hsiang-Wen Ke
  • Publication number: 20210343931
    Abstract: A method for fabricating a semiconductor device includes the steps of: forming a first inter-metal dielectric (IMD) layer on a substrate; forming a contact hole in the first IMD layer; forming a bottom electrode layer in the contact hole; forming a magnetic tunneling junction (MTJ) stack on the bottom electrode layer; and removing the MTJ stack and the bottom electrode layer to form a MTJ on a bottom electrode. Preferably, the bottom electrode protrudes above a top surface of the first IMD layer.
    Type: Application
    Filed: May 25, 2020
    Publication date: November 4, 2021
    Inventors: Jin-Yan Chiou, Wei-Chuan Tsai, Hsin-Fu Huang, Yen-Tsai Yi, Hsiang-Wen Ke
  • Publication number: 20210050253
    Abstract: A method for fabricating semiconductor device includes the steps of: forming a gate structure on a substrate; forming a source/drain region adjacent to two sides of the gate structure; forming an interlayer dielectric (ILD) layer on the gate structure; forming a contact hole in the ILD layer to expose the source/drain region; forming a barrier layer in the contact hole; performing an anneal process; and performing a plasma treatment process to inject nitrogen into the contact hole.
    Type: Application
    Filed: September 12, 2019
    Publication date: February 18, 2021
    Inventors: Jin-Yan Chiou, Wei-Chuan Tsai, Yen-Tsai Yi, Li-Han Chen, Hsiang-Wen Ke
  • Patent number: 10867808
    Abstract: A manufacturing method of a connection structure includes the following steps. A dielectric layer is formed on conductive structures. Openings are formed in the dielectric layer and expose the conductive structures. A tungsten nucleation layer is conformally formed on the dielectric layer and in the openings. A nitrogen-containing treatment is performed on the tungsten nucleation layer. A deposition process is performed to form a tungsten filling layer on the tungsten nucleation layer. An interfacial layer is formed between the tungsten nucleation layer and the tungsten filling layer by the deposition process. A fluorine concentration of the interfacial layer is higher than that of the tungsten filling layer. A chemical mechanical polishing (CMP) process is performed to remove a part of the tungsten nucleation layer and a part of the tungsten filling layer for forming connection structures. The interfacial layer is removed by the CMP process.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: December 15, 2020
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Hsiang-Wen Ke, Wei-Chuan Tsai, Li-Han Chen, Jin-Yan Chiou, Yen-Tsai Yi
  • Patent number: 10756128
    Abstract: An integrated circuit device includes a complementary metal oxide semiconductor (CMOS) image sensor. The complementary metal oxide semiconductor (CMOS) image sensor includes a P-N junction photodiode, a transistor gate, a polysilicon plug and a stacked metal layer. The P-N junction photodiode is disposed in a substrate. The transistor gate and the polysilicon plug are disposed on the substrate, wherein the polysilicon plug is directly connected to the P-N junction photodiode. The stacked metal layer connects the polysilicon plug to the transistor gate, wherein the stacked metal layer includes a lower metal layer and an upper metal layer, and the lower metal layer includes a first metal silicide part contacting to the polysilicon plug. The present invention also provides a method of fabricating said integrated circuit device.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: August 25, 2020
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Kuo-Chih Lai, Shih-Min Chou, Ko-Wei Lin, Chin-Fu Lin, Wei-Chuan Tsai, Chun-Yao Yang, Chia-Fu Cheng, Yi-Syun Chou, Wei Chen
  • Publication number: 20200212090
    Abstract: An integrated circuit device includes a complementary metal oxide semiconductor (CMOS) image sensor. The complementary metal oxide semiconductor (CMOS) image sensor includes a P-N junction photodiode, a transistor gate, a polysilicon plug and a stacked metal layer. The P-N junction photodiode is disposed in a substrate. The transistor gate and the polysilicon plug are disposed on the substrate, wherein the polysilicon plug is directly connected to the P-N junction photodiode. The stacked metal layer connects the polysilicon plug to the transistor gate, wherein the stacked metal layer includes a lower metal layer and an upper metal layer, and the lower metal layer includes a first metal silicide part contacting to the polysilicon plug. The present invention also provides a method of fabricating said integrated circuit device.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 2, 2020
    Inventors: Kuo-Chih Lai, Shih-Min Chou, Ko-Wei Lin, Chin-Fu Lin, Wei-Chuan Tsai, Chun-Yao Yang, Chia-Fu Cheng, Yi-Syun Chou, Wei Chen
  • Publication number: 20200006517
    Abstract: A structure of semiconductor device includes a gate structure, disposed on a substrate. A spacer is disposed on a sidewall of the gate structure, wherein the spacer is an l-like structure. A first doped region is disposed in the substrate at two sides of the gate structure. A second doped region is disposed in the substrate at the two sides of the gate structure, overlapping the first doped region. A silicide layer is disposed on the substrate within the second doped region, separating from the spacer by a distance. A dielectric layer covers over the second doped region and the gate structure with the spacer.
    Type: Application
    Filed: August 2, 2018
    Publication date: January 2, 2020
    Applicant: United Microelectronics Corp.
    Inventors: Yi-Fan Li, Po-Ching Su, Cheng-Chia Liu, Yen-Tsai Yi, Wei-Chuan Tsai, Chih-Chiang Wu, Ti-Bin Chen, Ching-Chu Tseng
  • Patent number: 10497617
    Abstract: A conductive structure includes a substrate including a first dielectric layer formed thereon, at least a first opening formed in the first dielectric layer, a low resistive layer formed in the opening, and a first metal bulk formed on the lower resistive layer in the opening. The first metal bulk directly contacts a surface of the first low resistive layer. The low resistive layer includes a carbonitride of a first metal material, and the first metal bulk includes the first metal material.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: December 3, 2019
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Li-Han Chen, Yen-Tsai Yi, Chun-Chieh Chiu, Min-Chuan Tsai, Wei-Chuan Tsai, Hsin-Fu Huang
  • Patent number: 10497607
    Abstract: A manufacturing method of an interconnect structure including the following steps is provided. A dielectric layer is formed on a silicon layer, wherein an opening exposing the silicon layer is in the dielectric layer. A metal layer is formed on the surface of the opening. A stress adjustment layer is formed on the metal layer. A thermal process is performed to react the metal layer with the silicon layer to form a metal silicide layer on the silicon layer. The stress adjustment layer is removed after the thermal process is performed. A barrier layer is formed on the surface of the opening.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: December 3, 2019
    Assignee: United Microelectronics Corp.
    Inventors: Li-Han Chen, Chun-Chieh Chiu, Wei-Chuan Tsai, Yen-Tsai Yi
  • Publication number: 20190122925
    Abstract: A conductive structure includes a substrate including a first dielectric layer formed thereon, at least a first opening formed in the first dielectric layer, a low resistive layer formed in the opening, and a first metal bulk formed on the lower resistive layer in the opening. The first metal bulk directly contacts a surface of the first low resistive layer. The low resistive layer includes a carbonitride of a first metal material, and the first metal bulk includes the first metal material.
    Type: Application
    Filed: December 19, 2018
    Publication date: April 25, 2019
    Inventors: Li-Han Chen, Yen-Tsai Yi, Chun-Chieh Chiu, Min-Chuan Tsai, Wei-Chuan Tsai, Hsin-Fu Huang
  • Publication number: 20190057895
    Abstract: A manufacturing method of an interconnect structure including the following steps is provided. A dielectric layer is formed on a silicon layer, wherein an opening exposing the silicon layer is in the dielectric layer. A metal layer is formed on the surface of the opening. A stress adjustment layer is formed on the metal layer. A thermal process is performed to react the metal layer with the silicon layer to form a metal silicide layer on the silicon layer. The stress adjustment layer is removed after the thermal process is performed. A barrier layer is formed on the surface of the opening.
    Type: Application
    Filed: September 21, 2017
    Publication date: February 21, 2019
    Applicant: United Microelectronics Corp.
    Inventors: Li-Han Chen, Chun-Chieh Chiu, Wei-Chuan Tsai, Yen-Tsai Yi