Patents by Inventor Che-An Chiang

Che-An Chiang 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: 20240049439
    Abstract: A method of forming semiconductor structure includes forming a dielectric stack over a substrate. A mask layer is formed over the dielectric stack. A first opening is formed in the mask layer to expose dielectric stack. A second opening is formed in the dielectric stack to expose the substrate, wherein the second opening is communicated with the first opening. A fill layer is formed in the first opening and the second opening. The mask layer and the fill layer are removed such that sidewalls of the dielectric stack are exposed. A capacitor is formed in the second opening of the dielectric stack.
    Type: Application
    Filed: August 8, 2022
    Publication date: February 8, 2024
    Inventors: Chia Che CHIANG, Jen-I LAI, Chun-Heng WU
  • Publication number: 20240047273
    Abstract: Semiconductor structures and methods are provided. An exemplary method according to the present disclosure includes receiving a workpiece including a first semiconductor fin and a second semiconductor fin penetrating from a substrate and separated by a first isolation feature, and a gate structure intersecting the first semiconductor fin and the second semiconductor fin. The method also includes removing the gate structure and portions of the first semiconductor fin, the second semiconductor fin, and the first isolation feature disposed directly under the gate structure to form a fin isolation trench, forming a dielectric layer over the workpiece to substantially fill the fin isolation trench, and planarizing the dielectric layer to form a fin isolation structure in the fin isolation trench.
    Type: Application
    Filed: August 4, 2022
    Publication date: February 8, 2024
    Inventors: Hsin-Che Chiang, Jyun-Hong Huang, Chi-Wei Wu, Shu-Hui Wang, Jeng-Ya Yeh
  • Publication number: 20240021480
    Abstract: A semiconductor device structure and a formation method are provided. The method includes forming a first dielectric fin and a second dielectric fin over a substrate, and the second dielectric fin is taller than the first dielectric fin. The method also includes forming a gate stack over the substrate, and the gate stack extends across the first dielectric fin and the second dielectric fin. The method further includes partially removing the gate stack such that an opening exposing the second dielectric fin is formed and forming an isolation structure in the opening.
    Type: Application
    Filed: July 14, 2022
    Publication date: January 18, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hsin-Che CHIANG, Wei-Chih KAO
  • Publication number: 20240014077
    Abstract: A method includes forming a gate stack on a semiconductor region, etching the gate stack to form a first trench separating the gate stack into a first gate stack portion and a second gate stack portion, and forming a gate isolation region filling the first trench. The gate isolation region includes a silicon nitride liner, and a silicon oxide filling-region overlapping a first bottom portion of the silicon nitride liner. The method further includes etching the gate stack to form a second trench and to reveal a protruding semiconductor fin, and etching the protruding semiconductor fin to extend the second trench into the bulk semiconductor substrate. A fin isolation region is formed to fill the second trench. The fin isolation region includes a silicon oxide liner, and a silicon nitride filling-region overlapping a second bottom portion of the silicon oxide liner.
    Type: Application
    Filed: January 5, 2023
    Publication date: January 11, 2024
    Inventors: Bo-Cyuan Lu, Hsin-Che Chiang, Tai-Chun Huang, Chi On Chui
  • Publication number: 20230420505
    Abstract: Structures and formation methods of a semiconductor device structure are provided. The semiconductor device structure includes first and second gate structures formed over a semiconductor substrate and a multilayer gate isolation structure separating the first gate structure from the second gate structure. The multilayer gate isolation structure includes a first insulating feature adjacent to upper portions of the first gate structure and the second gate structure, and a second insulating feature separating the semiconductor substrate from the first insulating feature. The material of the second insulating feature is different than that of the first insulating feature. The second insulating feature has a lower dielectric constant or lower etch resistance than the first insulating feature.
    Type: Application
    Filed: June 22, 2022
    Publication date: December 28, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hong-Chih CHEN, Wei-Chih KAO, Chun-Yi CHANG, Yu-San CHIEN, Hsin-Che CHIANG, Chun-Sheng LIANG
  • Publication number: 20230411492
    Abstract: A semiconductor device structure and a formation method are provided. The method includes forming a dummy gate stack over a substrate and forming a dielectric layer laterally surrounding the dummy gate stack. The method also includes introducing dopants into an upper portion of the dielectric layer and removing the dummy gate stack to form a trench surrounded by the dielectric layer. The method further includes forming a metal gate stack in the trench.
    Type: Application
    Filed: June 15, 2022
    Publication date: December 21, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun-Yi CHANG, Wen-Li CHIU, Hsin-Che CHIANG, Chun-Sheng LIANG
  • Publication number: 20230411497
    Abstract: A method for forming a semiconductor device structure is provided. The method includes forming a first gate stack over a substrate. The first gate stack includes a first gate electrode and a dielectric layer between the first gate electrode and the substrate, and the first gate electrode has a void. The method includes oxidizing a side portion of the first gate electrode to form an oxide layer over the first gate electrode. The oxide layer fills the void.
    Type: Application
    Filed: June 17, 2022
    Publication date: December 21, 2023
    Inventors: Chun-Yi CHANG, Hsiao-Chu CHEN, Hong-Chih CHEN, Hsin-Che CHIANG, Chun-Sheng LIANG, Kuo-Hua PAN
  • Patent number: 11848373
    Abstract: A dummy fin described herein includes a low dielectric constant (low-k or LK) material outer shell. A leakage path that would otherwise occur due to a void being formed in the low-k material outer shell is filled with a high dielectric constant (high-k or HK) material inner core. This increases the effectiveness of the dummy fin to provide electrical isolation and increases device performance of a semiconductor device in which the dummy fin is included. Moreover, the dummy fin described herein may not suffer from bending issues experienced in other types of dummy fins, which may otherwise cause high-k induced alternating current (AC) performance degradation. The processes for forming the dummy fins described herein are compatible with other fin field effect transistor (finFET) formation processes and are be easily integrated to minimize and/or prevent polishing issues, etch back issues, and/or other types of semiconductor processing issues.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: December 19, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Chih Kao, Hsin-Che Chiang, Chun-Sheng Liang, Kuo-Hua Pan
  • Patent number: 11849618
    Abstract: An electronic device is provided and includes a first voltage trace, a second voltage trace, a first region electrode, a second region electrode, and a voltage source module. The second voltage trace is electrically insulated from the first voltage trace, the first region electrode is electrically connected to the first voltage trace, and the second region electrode is electrically connected to the second voltage trace. The voltage source module provides a first driving voltage to the first voltage trace and provides a second driving voltage to the second voltage trace, in which the first driving voltage is different from the second driving voltage. In a top-view direction of the electronic device, the first voltage trace is separated from the second voltage trace, and the first voltage trace and the second voltage trace are formed of a conductive layer.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: December 19, 2023
    Assignee: InnoLux Corporation
    Inventors: Shu-Hui Yang, Chien-Chih Chen, Ming-Che Chiang, Hong-Pin Ko
  • Patent number: 11837602
    Abstract: An embodiment method includes forming a semiconductor liner layer on a first fin structure and on a second fin structure and forming a first capping layer on the semiconductor liner layer disposed on the first fin structure. The method further includes forming a second capping layer on the semiconductor liner layer disposed on the first fin structure, where a composition of the first capping layer is different from a composition of the second capping layer. The method additionally includes performing a thermal process on the first capping layer, the second capping layer, and the semiconductor liner layer to form a first channel region in the first fin structure and a second channel region in the second fin structure. A concentration profile of a material of the first channel region is different from a concentration profile of a material of the second channel region.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: December 5, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yu-San Chien, Hsin-Che Chiang, Chun-Sheng Liang, Kuo-Hua Pan
  • Publication number: 20230387274
    Abstract: A dummy fin described herein includes a low dielectric constant (low-k or LK) material outer shell. A leakage path that would otherwise occur due to a void being formed in the low-k material outer shell is filled with a high dielectric constant (high-k or HK) material inner core. This increases the effectiveness of the dummy fin to provide electrical isolation and increases device performance of a semiconductor device in which the dummy fin is included. Moreover, the dummy fin described herein may not suffer from bending issues experienced in other types of dummy fins, which may otherwise cause high-k induced alternating current (AC) performance degradation. The processes for forming the dummy fins described herein are compatible with other fin field effect transistor (finFET) formation processes and are be easily integrated to minimize and/or prevent polishing issues, etch back issues, and/or other types of semiconductor processing issues.
    Type: Application
    Filed: August 10, 2023
    Publication date: November 30, 2023
    Inventors: Wei-Chih KAO, Hsin-Che CHIANG, Chun-Sheng LIANG, Kuo-Hua PAN
  • Publication number: 20230378360
    Abstract: The present disclosure describes structure and method of a fin field-effect transistor (finFET) device. The finFET device includes: a substrate, a fin over the substrate, and a gate structure over the fin. The gate structure includes a work-function metal (WFM) layer over an inner sidewall of the gate structure. A topmost surface of the WFM layer is lower than a top surface of the gate structure. The gate structure also includes a filler gate metal layer over the topmost surface of the WFM layer. A top surface of the filler gate metal layer is substantially co-planar with the top surface of the gate structure. The gate structure further includes a self-assembled monolayer (SAM) between the filler gate metal layer and the WFM layer.
    Type: Application
    Filed: July 28, 2023
    Publication date: November 23, 2023
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ju-Li Huang, Hsin-Che Chiang, Yu-Chi Pan, Chun-Ming Yang, Chun-Sheng Liang, Ying-Liang Chuang, Ming-Hsi Yeh
  • Publication number: 20230369465
    Abstract: An embodiment method includes: forming a semiconductor liner layer on exposed surfaces of a fin structure that extends above a dielectric isolation structure disposed over a substrate; forming a first capping layer to laterally surround a bottom portion of the semiconductor liner layer; forming a second capping layer over an upper portion of the semiconductor liner layer; and annealing the fin structure having the semiconductor liner layer, the first capping layer, and the second capping layer thereon, the annealing driving a dopant from the semiconductor liner layer into the fin structure, wherein a dopant concentration profile in a bottom portion of the fin structure is different from a dopant concentration profile in an upper portion of the fin structure.
    Type: Application
    Filed: July 20, 2023
    Publication date: November 16, 2023
    Inventors: Wei-Chih Kao, Hsin-Che Chiang, Yu-San Chien, Chun-Sheng Liang, Kuo-Hua Pan
  • Publication number: 20230369135
    Abstract: A method includes forming first and second gate stacks extending across a semiconductor fin on a substrate; forming source/drain regions in the semiconductor fin, wherein one of the source/drain region is between the first and second gate stacks; forming a dielectric layer laterally surrounding the first and second gate stacks; doping a portion of the dielectric layer between the first and second gate stacks with a dopant; removing the second gate stack to form a gate trench next to the doped first portion of the dielectric layer; performing an annealing process to expand the doped first portion of the dielectric layer toward the gate trench; forming an isolation structure in the gate trench and next to the expanded first portion of the dielectric layer; forming a source/drain contact extending through the dielectric layer to the one of the source/drain regions.
    Type: Application
    Filed: May 11, 2022
    Publication date: November 16, 2023
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chi-Wei WU, Hsin-Che CHIANG, Chun-Sheng LIANG
  • Publication number: 20230369336
    Abstract: Provided is a semiconductor device including a substrate, one hybrid fin, a gate, and a dielectric structure. The substrate includes at least two fins. The hybrid fin is disposed between the at least two fins. The gate covers portions of the at least two fins and the hybrid fin. The dielectric structure lands on the hybrid fin to divide the gate into two segment. The two segments are electrically isolated to each other by the dielectric structure and the hybrid fin. The hybrid fin includes a first portion, disposed between the two segments of the gate; and a second portion, disposed aside the first portion, wherein a top surface of the second portion is lower than a top surface of the first portion.
    Type: Application
    Filed: July 26, 2023
    Publication date: November 16, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-San Chien, Chun-Sheng Liang, Jhon-Jhy Liaw, Kuo-Hua Pan, Hsin-Che Chiang
  • Publication number: 20230369390
    Abstract: A manufacturing method of a semiconductor structure includes forming a dielectric layer stack including a first oxide layer and a second oxide layer over the first oxide layer. An opening is formed in the dielectric layer stack, and includes a first portion exposing sidewalls of the first oxide layer and a second portion exposing sidewalls of the second oxide layer. A sacrificial layer is formed over the dielectric layer stack and along the sidewalls of the first oxide layer and the second oxide layer in the opening. A first etching is performed to remove the sacrificial layer along the sidewalls of the first oxide layer. A second etching is performed to widen the first portion of the opening. The sacrificial layer along the sidewalls of the second oxide layer and over the dielectric layer stack is removed. A capacitor is formed in the opening after removing the sacrificial layer.
    Type: Application
    Filed: May 13, 2022
    Publication date: November 16, 2023
    Inventor: Chia Che CHIANG
  • Patent number: 11810978
    Abstract: The present disclosure describes structure and method of a fin field-effect transistor (finFET) device. The finFET device includes: a substrate, a fin over the substrate, and a gate structure over the fin. The gate structure includes a work-function metal (WFM) layer over an inner sidewall of the gate structure. A topmost surface of the WFM layer is lower than a top surface of the gate structure. The gate structure also includes a filler gate metal layer over the topmost surface of the WFM layer. A top surface of the filler gate metal layer is substantially co-planar with the top surface of the gate structure. The gate structure further includes a self-assembled monolayer (SAM) between the filler gate metal layer and the WFM layer.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: November 7, 2023
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ju-Li Huang, Hsin-Che Chiang, Yu-Chi Pan, Chun-Ming Yang, Chun-Sheng Liang, Ying-Liang Chuang, Ming-Hsi Yeh
  • Patent number: 11799017
    Abstract: An embodiment method includes: forming a semiconductor liner layer on exposed surfaces of a fin structure that extends above a dielectric isolation structure disposed over a substrate; forming a first capping layer to laterally surround a bottom portion of the semiconductor liner layer; forming a second capping layer over an upper portion of the semiconductor liner layer; and annealing the fin structure having the semiconductor liner layer, the first capping layer, and the second capping layer thereon, the annealing driving a dopant from the semiconductor liner layer into the fin structure, wherein a dopant concentration profile in a bottom portion of the fin structure is different from a dopant concentration profile in an upper portion of the fin structure.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: October 24, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD
    Inventors: Wei-Chih Kao, Hsin-Che Chiang, Yu-San Chien, Chun-Sheng Liang, Kuo-Hua Pan
  • Publication number: 20230317645
    Abstract: A package structure is provided. The package structure includes a dielectric structure and an antenna structure disposed in the dielectric structure. The package structure also includes a semiconductor device disposed on the dielectric structure and a protective layer surrounding the semiconductor device. The package structure further includes a conductive feature electrically connecting the semiconductor device and the antenna structure. A portion of the antenna structure is between the conductive feature and the dielectric structure.
    Type: Application
    Filed: June 5, 2023
    Publication date: October 5, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yung-Ping CHIANG, Yi-Che CHIANG, Nien-Fang WU, Min-Chien HSIAO, Chao-Wen SHIH, Shou-Zen CHANG, Chung-Shi LIU, Chen-Hua YU
  • Publication number: 20230307404
    Abstract: A package structure includes a die, a first redistribution circuit structure, a first redistribution circuit structure, a second redistribution circuit structure, an enhancement layer, first conductive terminals, and second conductive terminals. The first redistribution circuit structure is disposed on a rear side of the die and electrically coupled to thereto. The second redistribution circuit structure is disposed on an active side of the die and electrically coupled thereto. The enhancement layer is disposed on the first redistribution circuit structure. The first redistribution circuit structure is disposed between the enhancement layer and the die. The first conductive terminals are connected to the first redistribution circuit structure. The first redistribution circuit structure is between the first conductive terminals and the die. The second conductive terminals are connected to the second redistribution circuit structure.
    Type: Application
    Filed: March 28, 2022
    Publication date: September 28, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Cheng-Yu Kuo, Yu-Ching Lo, Wei-Jie Huang, Ching-Pin Yuan, Yi-Che Chiang, Kris Lipu Chuang, Hsin-Yu Pan, Yi-Yang Lei, Ching-Hua Hsieh, Kuei-Wei Huang