Patents by Inventor Huicheng Chang

Huicheng Chang 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).

  • Publication number: 20230050645
    Abstract: A method of forming a semiconductor device is provided. The method includes providing a substrate having a first region and a second region; forming a plurality of trenches in the first region of the substrate; forming a multi-layer stack over the substrate and in the trenches; and patterning the multi-layer stack and the substrate to form first nanostructures over first fins in the first region and second nanostructures over second fins in the second region, where the multi-layer stack includes at least one of first semiconductor layers and at least one of second semiconductor layer stacked alternately, and the plurality of trenches are in corresponding ones of the first fins.
    Type: Application
    Filed: March 8, 2022
    Publication date: February 16, 2023
    Inventors: Wen-Yen Chen, Tsai-Yu Huang, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20230038762
    Abstract: A device includes a first semiconductor fin extending from a substrate, a second semiconductor fin extending from the substrate, a dielectric fin over the substrate, a first isolation region between the first semiconductor fin and the dielectric fin, and a second isolation region between the first semiconductor fin and the second semiconductor fin. The first semiconductor fin is disposed between the second semiconductor fin and the dielectric fin. The first isolation region has a first concentration of an impurity. The second isolation region has a second concentration of the impurity. The second concentration is less than the first concentration. A top surface of the second isolation region is disposed closer to the substrate than a top surface of the first isolation region.
    Type: Application
    Filed: February 7, 2022
    Publication date: February 9, 2023
    Inventors: Szu-Ying Chen, Po-Kang Ho, Sen-Hong Syue, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20230042196
    Abstract: A method includes depositing a multi-layer stack over a semiconductor substrate, the multi-layer stack including a plurality of sacrificial layers that alternate with a plurality of channel layers; forming a first recess in the multi-layer stack; forming first spacers on sidewalls of the sacrificial layers in the first recess; depositing a first semiconductor material in the first recess, where the first semiconductor material is undoped, where the first semiconductor material is in physical contact with a sidewall and a bottom surface of at least one of the first spacers; implanting dopants in the first semiconductor material, where after implanting dopants the first semiconductor material has a gradient-doped profile; and forming an epitaxial source/drain region in the first recess over the first semiconductor material, where a material of the epitaxial source/drain region is different from the first semiconductor material.
    Type: Application
    Filed: February 14, 2022
    Publication date: February 9, 2023
    Inventors: Yu-Chang Lin, Chun-Hung Wu, Liang-Yin Chen, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20230042726
    Abstract: FCVD using multi-step anneal treatment and devices thereof are disclosed. In an embodiment, a method includes depositing a flowable dielectric film on a substrate. The flowable dielectric film is deposited between a first semiconductor fin and a second semiconductor fin. The method further includes annealing the flowable dielectric film at a first anneal temperature for at least 5 hours to form a first dielectric film, annealing the first dielectric film at a second anneal temperature higher than the first anneal temperature to form a second dielectric film, annealing the second dielectric film at a third anneal temperature higher than the first anneal temperature to form an insulating layer, applying a planarization process to the insulating layer, and etching the insulating layer to STI regions on the substrate.
    Type: Application
    Filed: May 6, 2022
    Publication date: February 9, 2023
    Inventors: Yun Chen Teng, Chen-Fong Tsai, Li-Chi Yu, Huicheng Chang, Yee-Chia Yeo
  • Patent number: 11574907
    Abstract: A semiconductor device includes a substrate, a fin structure and an isolation layer formed on the substrate and adjacent to the fin structure. The semiconductor device includes a gate structure formed on at least a portion of the fin structure and the isolation layer. The semiconductor device includes an epitaxial layer including a strained material that provides stress to a channel region of the fin structure. The epitaxial layer has a first region and a second region, in which the first region has a first doping concentration of a first doping agent and the second region has a second doping concentration of a second doping agent. The first doping concentration is greater than the second doping concentration. The epitaxial layer is doped by ion implantation using phosphorous dimer.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: February 7, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yu-Chang Lin, Chun-Feng Nieh, Huicheng Chang, Hou-Yu Chen, Yong-Yan Lu
  • Publication number: 20230034803
    Abstract: A method includes forming a source/drain region, forming a dielectric layer over the source/drain region, and etching the dielectric layer to form a contact opening. The source/drain region is exposed to the contact opening. The method further includes depositing a dielectric spacer layer extending into the contact opening, etching the dielectric spacer layer to form a contact spacer in the contact opening, implanting a dopant into the source/drain region through the contact opening after the dielectric spacer layer is deposited, and forming a contact plug to fill the contact opening.
    Type: Application
    Filed: February 8, 2022
    Publication date: February 2, 2023
    Inventors: Meng-Han Chou, Yi-Syuan Siao, Su-Hao Liu, Huicheng Chang, Yee-Chia Yeo
  • Patent number: 11563110
    Abstract: A method for forming a semiconductor structure is provided. The method includes forming a fin structure over a substrate and forming an isolation structure over the substrate. In addition, the fin structure is protruded from the isolation structure. The method further includes trimming the fin structure to a first width and forming a Ge-containing material covering the fin structure. The method further includes annealing the fin structure and the Ge-containing material to form a modified fin structure. The method also includes trimming the modified fin structure to a second width.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: January 24, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yi-Yun Li, Tsai-Yu Huang, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20230016619
    Abstract: A method includes moving a plurality of sensors along a translation path with respect to an ion beam, acquiring sensor signals produced by the plurality of sensors, converting the acquired sensor signals into a data set representative of a two-dimensional (2D) profile of the ion beam, generating a plurality of first one-dimensional (1D) profiles of the ion beam from the data set, generating a plurality of second 1D profiles of the ion beam by spatially inverting each of the plurality of first 1D profiles, generating a plurality of third 1D profiles of the ion beam by superposing first current density values of each of the plurality of first 1D profiles with second current density values of a corresponding one of the plurality of second 1D profiles and determining whether to continue an implantation process with the ion beam in accordance with the plurality of third 1D profiles.
    Type: Application
    Filed: March 2, 2022
    Publication date: January 19, 2023
    Inventors: Tien-Shun Chang, Yu-Kang Liu, Su-Hao Liu, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20230019415
    Abstract: A method includes placing a first wafer on a first wafer stage, placing a second wafer on a second wafer stage, and pushing a center portion of the first wafer to contact the second wafer. A bonding wave propagates from the center portion to edge portions of the first wafer and the second wafer. When the bonding wave propagates from the center portion to the edge portions of the first wafer and the second wafer, a stage gap between the top wafer stage and the bottom wafer stage is reduced.
    Type: Application
    Filed: January 18, 2022
    Publication date: January 19, 2023
    Inventors: Han-De Chen, Cheng-I Chu, Yun Chen Teng, Chen-Fong Tsai, Jyh-Cherng Sheu, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20230010038
    Abstract: Wafer bonding apparatus and method are provided. A method includes performing a first plasma activation process on a first surface of a first wafer. The first plasma activation process forms a first high-activation region and a first low-activation region on the first surface of the first wafer. A first cleaning process is performed on the first surface of the first wafer. The first cleaning process forms a first plurality of silanol groups in the first high-activation region and the first low-activation region. The first high-activation region includes more silanol groups than the first low-activation region. The first wafer is bonded to a second wafer.
    Type: Application
    Filed: September 10, 2021
    Publication date: January 12, 2023
    Inventors: Cheng-I Chu, Han-De Chen, Chen-Fong Tsai, Jyh-Cherng Sheu, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20230008413
    Abstract: A method includes forming a fin protruding from a semiconductor substrate; forming a dummy gate stack over the fin, wherein forming the dummy gate stack includes depositing a layer of amorphous material over the fin; performing an anneal process on the layer of amorphous material, wherein the anneal process recrystallizes the layer of amorphous material into a layer of polycrystalline material, wherein the anneal process includes heating the layer of amorphous material for less than one millisecond; and patterning the layer of polycrystalline material; and forming an epitaxial source/drain region in the fin adjacent the dummy gate stack; and removing the dummy gate stack and replacing the dummy gate stack with a replacement gate stack.
    Type: Application
    Filed: February 16, 2022
    Publication date: January 12, 2023
    Inventors: Po-Kang Ho, Kuo-Ju Chen, Wei-Ting Chang, Wei-Fu Wang, Li-Ting Wang, Huicheng Chang, Yee-Chia Yeo, Yi-Chao Wang, Tsai-Yu Huang
  • Publication number: 20220415719
    Abstract: In an embodiment, a method includes: placing a wafer on an implanter platen, the wafer including alignment marks; measuring a position of the wafer by measuring positions of the alignment marks with one or more cameras; determining an angular displacement between the position of the wafer and a reference position of the wafer; and rotating the implanter platen by the angular displacement.
    Type: Application
    Filed: August 27, 2021
    Publication date: December 29, 2022
    Inventors: Chia-Cheng Chen, Chih-Kai Yang, Liang-Yin Chen, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20220415606
    Abstract: In an embodiment, a method includes: placing a wafer on an implanter platen, the wafer including integrated circuit dies; measuring a position of the wafer by measuring a positions of an outer edge of the integrated circuit dies with a camera; determining an angular displacement between the position of the wafer and a reference position of the wafer; and rotating the implanter platen by the angular displacement.
    Type: Application
    Filed: August 27, 2021
    Publication date: December 29, 2022
    Inventors: Chia-Cheng Chen, Chun-Liang Chen, Liang-Yin Chen, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20220415668
    Abstract: A method includes placing a wafer on a susceptor, wherein the wafer has a first radius, wherein a top surface of the susceptor has a second radius that is greater than the first radius; using microwave radiation to heat the wafer and the susceptor; and removing the wafer from the susceptor.
    Type: Application
    Filed: January 21, 2022
    Publication date: December 29, 2022
    Inventors: Yi-Fan Chen, Sen-Hong Syue, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20220406621
    Abstract: A method includes bonding a package component to a composite carrier. The composite carrier includes a base carrier and an absorption layer, and the absorption layer is between the base carrier and the package component. A laser beam is projected onto the composite carrier. The laser beam penetrates through the base carrier to ablate the absorption layer. The base carrier may then be separated from the package component.
    Type: Application
    Filed: September 20, 2021
    Publication date: December 22, 2022
    Inventors: Huicheng Chang, Jyh-Cherng Sheu, Chen-Fong Tsai, Yun Chen Teng, Han-De Chen, Yee-Chia Yeo
  • Publication number: 20220406655
    Abstract: Semiconductor devices and methods of manufacturing semiconductor devices are described herein. A method includes implanting neutral elements into a dielectric layer, an etch stop layer, and a metal feature, the dielectric layer being disposed over the etch stop layer and the metal feature being disposed through the dielectric layer and the etch stop layer. The method further includes using a germanium gas as a source for the neutral elements and using a beam current above 6.75 mA to implant the neutral elements.
    Type: Application
    Filed: February 18, 2022
    Publication date: December 22, 2022
    Inventors: Kuo-Ju Chen, Shih-Hsiang Chiu, Meng-Han Chou, Su-Hao Liu, Liang-Yin Chen, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20220406774
    Abstract: A semiconductor structure having doped wells and a method of forming is provided. The doped wells may utilize parallel implantation techniques and tilt implantation techniques to form wells having less lateral diffusion and less vertical doping.
    Type: Application
    Filed: March 21, 2022
    Publication date: December 22, 2022
    Inventors: Yu-Chang Lin, Bau-Ming Wang, Liang-Yin Chen, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20220406592
    Abstract: A method of forming a semiconductor device includes forming a photoresist over a target layer, where the target layer includes a substrate. The photoresist is patterned to form a patterned photoresist. Scum remains between portions of the patterned photoresist. The substrate is tilted relative to a direction of propagation of an ion beam. An ion treatment is performed on the scum. A pattern of the patterned photoresist is transferred to the target layer.
    Type: Application
    Filed: February 21, 2022
    Publication date: December 22, 2022
    Inventors: Chun-Hung Wu, Chia-Cheng Chen, Liang-Yin Chen, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20220406629
    Abstract: In an embodiment, a pattern transfer processing chamber includes a pattern transfer processing chamber and a loading area external to the pattern transfer processing chamber. The loading area is configured to transfer a wafer to or from the pattern transfer processing chamber. The loading area comprises a first region including a loadport, a second region including a load-lock between the first region and the pattern transfer processing chamber, and an embedded baking chamber configured to heat a patterned photoresist on the wafer.
    Type: Application
    Filed: April 14, 2022
    Publication date: December 22, 2022
    Inventors: Chia-Cheng Chen, Chih-Kai Yang, Chun-Liang Chen, Wei-Ting Chien, Liang-Yin Chen, Huicheng Chang, Yee-Chia Yeo
  • Patent number: 11532485
    Abstract: In a gate last metal gate process for forming a transistor, a dielectric layer is formed over an intermediate transistor structure, the intermediate structure including a dummy gate electrode, typically formed of polysilicon. Various processes, such as patterning the polysilicon, planarizing top layers of the structure, and the like can remove top portions of the dielectric layer, which can result in decreased control of gate height when a metal gate is formed in place of the dummy gate electrode, decreased control of fin height for finFETs, and the like. Increasing the resistance of the dielectric layer to attack from these processes, such as by implanting silicon or the like into the dielectric layer before such other processes are performed, results in less removal of the top surface, and hence improved control of the resulting structure dimensions and performance.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: December 20, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Su-Hao Liu, Tsan-Chun Wang, Liang-Yin Chen, Jing-Huei Huang, Lun-Kuang Tan, Huicheng Chang