Patents by Inventor Ching-Hung Kao

Ching-Hung Kao 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: 20230021655
    Abstract: In a method of manufacturing a semiconductor device first conductive layers are formed over a substrate. A first photoresist layer is formed over the first conductive layers. The first conductive layers are etched by using the first photoresist layer as an etching mask, to form an island pattern of the first conductive layers separated from a bus bar pattern of the first conductive layers by a ring shape groove. A connection pattern is formed to connect the island pattern and the bus bar pattern. A second photoresist layer is formed over the first conductive layers and the connection pattern. The second photoresist layer includes an opening over the island pattern. Second conductive layers are formed on the island pattern in the opening. The second photoresist layer is removed, and the connection pattern is removed, thereby forming a bump structure.
    Type: Application
    Filed: January 28, 2022
    Publication date: January 26, 2023
    Inventor: Ching-Hung KAO
  • Publication number: 20230026305
    Abstract: A semiconductor device and method of manufacturing the same are provided. The semiconductor device includes an interconnect structure on a substrate; a passivation layer disposed on the interconnect structure; a first via, a second via and a third via disposed in the passivation layer and connected to the interconnect structure, each of the first, second and third vias has an elongated shape longitudinally oriented along a first direction; and a first pad longitudinally oriented along the first direction and landing on the first, second and third vias.
    Type: Application
    Filed: April 1, 2022
    Publication date: January 26, 2023
    Inventors: Ching-Hung Kao, Kuei-Yu Deng
  • Publication number: 20230016468
    Abstract: A method for fabricating semiconductor devices is disclosed. The method includes forming a recess along a top surface of a semiconductor substrate. The method includes forming a nitride-based spacer layer extending along a first sidewall of the recess. The method includes forming a field oxide layer in the recess extending along a bottom surface of the recess, while a lateral tip of the field oxide layer is blocked from extending into any portion of the semiconductor substrate other than the recess by the nitride-based spacer layer.
    Type: Application
    Filed: January 26, 2022
    Publication date: January 19, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Ching-Hung Kao
  • Publication number: 20220367610
    Abstract: The present disclosure relates to a semiconductor device and a manufacturing method, and more particularly to a MIM dual capacitor structure with an increased capacitance per unit area in a semiconductor structure. Without using additional mask layers, a second parallel plate capacitor can be formed over a first parallel plate capacitor, and both capacitors share a common capacitor plate. The two parallel plate capacitors can be connected in parallel to increase the capacitance per unit area.
    Type: Application
    Filed: July 27, 2022
    Publication date: November 17, 2022
    Applicant: Taiwan Semiconductor Manfacturing Co., Ltd.
    Inventors: Chen-Yin HSU, Chun Li WU, Ching-Hung KAO
  • Patent number: 11502161
    Abstract: The present disclosure relates to a semiconductor device and a manufacturing method, and more particularly to a MIM dual capacitor structure with an increased capacitance per unit area in a semiconductor structure. Without using additional mask layers, a second parallel plate capacitor can be formed over a first parallel plate capacitor, and both capacitors share a common capacitor plate. The two parallel plate capacitors can be connected in parallel to increase the capacitance per unit area.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: November 15, 2022
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chen-Yin Hsu, Chun Li Wu, Ching-Hung Kao
  • Patent number: 11488872
    Abstract: A method for forming a semiconductor device structure is provided. The method includes forming a first semiconductor layer, an insulating layer and a second semiconductor layer in a substrate. The method also includes forming a first isolation feature in the first semiconductor layer, the insulating layer and the second semiconductor layer. The method further includes forming a transistor in and over the substrate adjacent to the first isolation feature. In addition, the method includes etching the first isolation feature to form a trench extending below the insulating layer. The method also includes filling the trench with a metal material to form a second isolation feature in the first isolation feature.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: November 1, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Tsung-Han Tsai, Po-Jen Wang, Chun-Li Wu, Ching-Hung Kao
  • Publication number: 20220310528
    Abstract: A method of fabricating a semiconductor structure includes forming an alignment mark layer on a substrate; patterning the alignment mark layer for forming at least one alignment mark feature; forming a bottom conductive layer on the patterned alignment mark layer in a substantially conformal manner; forming an insulator layer on the bottom conductive layer; and forming a top conductive layer on the insulator layer.
    Type: Application
    Filed: June 13, 2022
    Publication date: September 29, 2022
    Inventors: Kuo-Hung LEE, Chih-Fei LEE, Fu-Cheng CHANG, Ching-Hung KAO
  • Publication number: 20220293650
    Abstract: A semiconductor device includes a plurality of isolation structures, wherein each isolation structure of the plurality of isolation structures is spaced from an adjacent isolation structure of the plurality of isolation structures in a first direction. The semiconductor device further includes a gate structure. The gate structure includes a top surface; a first sidewall angled at a non-perpendicular angle with respect to the top surface; and a second sidewall angled with respect to the top surface. The gate structure further includes a first horizontal surface extending between the first sidewall and the second sidewall, wherein the first horizontal surface is parallel to the top surface, and a dimension of the gate structure in a second direction, perpendicular to the first direction, is less than a dimension of each of the plurality of isolation structures in the second direction.
    Type: Application
    Filed: June 2, 2022
    Publication date: September 15, 2022
    Inventors: Chia-Yu WEI, Fu-Cheng CHANG, Hsin-Chi CHEN, Ching-Hung KAO, Chia-Pin CHENG, Kuo-Cheng LEE, Hsun-Ying HUANG, Yen-Liang LIN
  • Publication number: 20220285554
    Abstract: A method and apparatus for minimizing silicon germanium facets in planar metal oxide semiconductor structures is disclosed. For example, a device fabricated according to the method may include a semiconductor substrate, a plurality of gate stacks formed on the substrate, a plurality of source/drain regions formed from silicon germanium, and a shallow trench isolation region positioned between two source/drain regions of the plurality of source/drain regions. Each source/drain region of the plurality of source/drain regions is positioned adjacent to at least one gate stack of the plurality of gate stacks. Moreover, the shallow trench isolation region forms a trench in the substrate without intersecting the two source/drain regions.
    Type: Application
    Filed: May 23, 2022
    Publication date: September 8, 2022
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yi-Sin WANG, Shan-Yun CHENG, Ching-Hung KAO, Jing-Jyu CHOU, Yi-Ting CHEN
  • Publication number: 20220223536
    Abstract: Semiconductor structures and method of forming the same are provided. A semiconductor structure according to the present disclosure includes a contact feature in a dielectric layer, a passivation structure over the dielectric layer, a conductive feature over the passivation structure, a seed layer disposed between the conductive feature and the passivation structure, a protecting layer disposed along sidewalls of the conductive feature, and a passivation layer over the conductive feature and the protecting layer.
    Type: Application
    Filed: May 5, 2021
    Publication date: July 14, 2022
    Inventors: Wen-Chun Wang, Tzy-Kuang Lee, Chih-Hsien Lin, Ching-Hung Kao, Yen-Yu Chen
  • Publication number: 20220223589
    Abstract: An integrated circuit (IC) with active and dummy device cell arrays and a method of fabricating the same are discloses. The IC includes a substrate, an active device cell, and a dummy device cell. The active device cell includes an array of source/drain (S/D) regions of a first conductivity type disposed on or within the substrate and an array of gate structures with a first gate fill material disposed on the substrate. The dummy device cell includes a first array of S/D regions of the first conductivity type disposed on or within the substrate, a second array of S/D regions of a second conductivity type disposed on or within the substrate, and an array of dual gate structures disposed on the substrate. Each of the dual gate structures includes the first gate fill material and a second gate fill material that is different from the first gate fill material.
    Type: Application
    Filed: May 13, 2021
    Publication date: July 14, 2022
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Kai-Chi WU, Ching-Hung Kao, Mang-I Kang, Kuo-Fang Ting
  • Patent number: 11380721
    Abstract: A gate structure includes a gate and a first isolation structure having a top surface and a bottom surface. The gate includes a first sidewall adjacent to the first isolation structure, a second sidewall, a first horizontal surface adjacent to a bottom edge of the first sidewall and a bottom edge of the second sidewall, the first horizontal surface being between the top surface of the first isolation structure and the bottom surface of the first isolation structure. The gate also includes a second horizontal surface adjacent to a top edge of the second sidewall. An effective channel width defined by the gate structure includes a height of the second sidewall and a width of the second horizontal surface.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: July 5, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chia-Yu Wei, Fu-Cheng Chang, Hsin-Chi Chen, Ching-Hung Kao, Chia-Pin Cheng, Kuo-Cheng Lee, Hsun-Ying Huang, Yen-Liang Lin
  • Patent number: 11362039
    Abstract: A method of fabricating a semiconductor structure includes forming an alignment mark layer on a substrate; patterning the alignment mark layer for forming at least one alignment mark feature; forming a bottom conductive layer on the patterned alignment mark layer in a substantially conformal manner; forming an insulator layer on the bottom conductive layer; and forming a top conductive layer on the insulator layer.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: June 14, 2022
    Inventors: Kuo-Hung Lee, Chih-Fei Lee, Fu-Cheng Chang, Ching-Hung Kao
  • Patent number: 11342455
    Abstract: A method and apparatus for minimizing silicon germanium facets in planar metal oxide semiconductor structures is disclosed. For example, a device fabricated according to the method may include a semiconductor substrate, a plurality of gate stacks formed on the substrate, a plurality of source/drain regions formed from silicon germanium, and a shallow trench isolation region positioned between two source/drain regions of the plurality of source/drain regions. Each source/drain region of the plurality of source/drain regions is positioned adjacent to at least one gate stack of the plurality of gate stacks. Moreover, the shallow trench isolation region forms a trench in the substrate without intersecting the two source/drain regions.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: May 24, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yi-Sin Wang, Shan-Yun Cheng, Ching-Hung Kao, Jing-Jyu Chou, Yi-Ting Chen
  • Patent number: 11201082
    Abstract: A method includes forming an isolation region between a plurality of active regions of a semiconductor substrate, forming at least one deep trench extending from the isolation region toward a bottom of the semiconductor substrate, and forming an interlayer dielectric layer over the semiconductor substrate. The interlayer dielectric layer fills in the deep trench to form a deep trench isolation structure and an air void in the deep trench isolation structure.
    Type: Grant
    Filed: November 16, 2019
    Date of Patent: December 14, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yu-Hua Yen, Ching-Hung Kao, Po-Jen Wang, Tsung-Han Tsai
  • Publication number: 20210159066
    Abstract: A method comprises depositing a mask layer on a front-side surface of a wafer, wherein a portion of the wafer has a first resistivity; with the mask layer in place, performing an ion implantation process on a backside surface of the wafer to implant a resistivity reduction impurity into the wafer through the backside surface of the wafer to lower the first resistivity of the portion of the wafer to a second resistivity; after performing the ion implantation process, removing the mask layer from the front-side surface of the wafer; and forming semiconductor devices on the front-side surface of the wafer.
    Type: Application
    Filed: February 7, 2021
    Publication date: May 27, 2021
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yao-Wen HSU, Ching-Hung KAO, Po-Jen WANG, Tsung-Han TSAI
  • Publication number: 20210134948
    Abstract: In an embodiment, an integrated circuit (IC) device comprises a semiconductor substrate, an isolation region and an active region disposed on the semiconductor substrate, a gate stack disposed over the active region, and a source and a drain disposed in the active region and interposed by the gate stack in a first direction. The active region is at least partially surrounded by the isolation region. A middle portion of the active region laterally extends beyond the gate stack in a second direction that is perpendicular to the first direction.
    Type: Application
    Filed: December 14, 2020
    Publication date: May 6, 2021
    Inventors: Ching-Hung Kao, Chi-Feng Huang, Fu-Huan Tsai, Victor Chiang Liang
  • Publication number: 20210066498
    Abstract: A method and apparatus for minimizing silicon germanium facets in planar metal oxide semiconductor structures is disclosed. For example, a device fabricated according to the method may include a semiconductor substrate, a plurality of gate stacks formed on the substrate, a plurality of source/drain regions formed from silicon germanium, and a shallow trench isolation region positioned between two source/drain regions of the plurality of source/drain regions. Each source/drain region of the plurality of source/drain regions is positioned adjacent to at least one gate stack of the plurality of gate stacks. Moreover, the shallow trench isolation region forms a trench in the substrate without intersecting the two source/drain regions.
    Type: Application
    Filed: March 17, 2020
    Publication date: March 4, 2021
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yi-Sin WANG, Shan-Yun CHENG, Ching-Hung KAO, Jing-Jyu CHOU, Yi-Ting CHEN
  • Patent number: 10916416
    Abstract: A semiconductor wafer and a semiconductor wafer fabrication method are provided. The wafer includes a supporting substrate, a semiconductor substrate and a contact layer. The supporting substrate has a first surface and a second surface opposite to the first surface. The semiconductor substrate is disposed on the first surface of the supporting substrate, in which the semiconductor substrate is configured to form plural devices. The contact layer is disposed on the second surface of the supporting substrate to contact the supporting substrate, in which the contact layer is configured to contact an electrostatic chuck and has a resistivity of the contact layer smaller than a resistivity of the supporting substrate. In semiconductor wafer fabrication method, at first, a raw wafer is provided. Then, the contact layer is formed by using an implantation operation or a deposition operation.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: February 9, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yao-Wen Hsu, Ching-Hung Kao, Po-Jen Wang, Tsung-Han Tsai
  • Publication number: 20210028120
    Abstract: A method of fabricating a semiconductor structure includes forming an alignment mark layer on a substrate; patterning the alignment mark layer for forming at least one alignment mark feature; forming a bottom conductive layer on the patterned alignment mark layer in a substantially conformal manner; forming an insulator layer on the bottom conductive layer; and forming a top conductive layer on the insulator layer.
    Type: Application
    Filed: October 12, 2020
    Publication date: January 28, 2021
    Inventors: Kuo-Hung LEE, Chih-Fei LEE, Fu-Cheng CHANG, Ching-Hung KAO