Patents by Inventor Shih-Ming Chang

Shih-Ming 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).

  • Patent number: 12360460
    Abstract: A semiconductor processing system includes a first photolithography system and a second photolithography system. The semiconductor processing system includes a layout database that stores a plurality of layouts indicating features to be formed in a wafer. The semiconductor processing system includes a layout analyzer that analyzes the layouts and selects either the first photolithography system or the second photolithography system based on dimensions of features in the layouts.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: July 15, 2025
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Shih-Ming Chang, Ken-Hsien Hsieh, Yu-Tien Shen
  • Publication number: 20250218772
    Abstract: A method includes forming a conductive member over a first conductive line; forming a second conductive line over the conductive member; and removing a portion of the conductive member exposed by the second conductive line to form a conductive via. The formation of the second conductive line is implemented prior to the formation of the conductive via. A semiconductor structure includes a first conductive line having a first surface; a second conductive line disposed above the first conductive line and having a second surface overlapping the first surface; and a conductive via electrically connected to the first surface and the second surface. The conductive via includes a first end disposed within the first surface, a second end disposed within the second surface, and a cross-section between the first end and the second end, wherein at least two of interior angles of the cross-section are substantially unequal to 90°.
    Type: Application
    Filed: January 20, 2025
    Publication date: July 3, 2025
    Inventors: JOHNNY CHIAHAO LI, SHIH-MING CHANG, KEN-HSIEN HSIEH, CHI-YU LU, YUNG-CHEN CHIEN, HUI-ZHONG ZHUANG, JERRY CHANG JUI KAO, XIANGDONG CHEN
  • Patent number: 12341103
    Abstract: An integrated circuit includes a first and second active region, a first conductive structure, an insulating region, a set of gates and a set of contacts. The first and second active region are in a substrate, extend in a first direction, are located on a first level, and being separated from one another in a second direction. The first conductive structure extends in the first direction, is located on the first level, and is between the first and second active region. The insulating region is located on at least the first level, and is between the first and second active region and the first conductive structure. The set of gates extend in the second direction, overlap the first conductive structure, and is located on a second level. The set of contacts extend in the second direction, overlap the first conductive structure, and is located on the second level.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: June 24, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Pochun Wang, Ting-Wei Chiang, Chih-Ming Lai, Hui-Zhong Zhuang, Jung-Chan Yang, Ru-Gun Liu, Ya-Chi Chou, Yi-Hsiung Lin, Yu-Xuan Huang, Yu-Jung Chang, Guo-Huei Wu, Shih-Ming Chang
  • Patent number: 12321099
    Abstract: A mirror structure includes an insulator layer and a first conductive layer disposed on the insulator layer. The first conductive layer includes a first non-conductive film disposed on the insulator layer. The first non-conductive film includes one or more first conductive segments. The mirror structure also includes a reflective layer disposed on the first conductive layer and an electro optical layer disposed on the reflective layer. The mirror structure further includes a second conductive layer disposed on the electro optical layer. The second conductive layer includes a second non-conductive film disposed on the electro optical layer. The second non-conductive film includes one or more second conductive segments.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: June 3, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Sheng-Min Wang, Shih-Ming Chang
  • Patent number: 12315815
    Abstract: In a method of manufacturing a semiconductor device, a first conductive pattern and a second conductive pattern are formed over the first conductive pattern, in a first interlayer dielectric (ILD) layer disposed over a substrate. The second conductive pattern contacts the first conductive pattern. A space is formed in the first ILD layer by removing a part of the second conductive pattern to expose a part of the first conductive pattern. The space is filled with a dielectric material. A third conductive pattern is formed over a remaining portion of the second conductive pattern. A via contact connecting the first conductive pattern and the third conductive pattern is formed by patterning the remaining portion of the second conductive pattern as an etching mask.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: May 27, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: Shih-Ming Chang
  • Patent number: 12298673
    Abstract: In a method of manufacturing a photo mask for lithography, circuit pattern data are acquired. A pattern density, which is a total pattern area per predetermined area, is calculated from the circuit pattern data. Dummy pattern data for areas having pattern density less than a threshold density are generated. Mask drawing data is generated from the circuit pattern data and the dummy pattern data. By using an electron beam from an electron beam lithography apparatus, patterns are drawn according to the mask drawing data on a resist layer formed on a mask blank substrate. The drawn resist layer is developed using a developing solution. Dummy patterns included in the dummy pattern data are not printed as a photo mask pattern when the resist layer is exposed with the electron beam and is developed.
    Type: Grant
    Filed: June 17, 2024
    Date of Patent: May 13, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chien-Cheng Chen, Chia-Jen Chen, Hsin-Chang Lee, Shih-Ming Chang, Tran-Hui Shen, Yen-Cheng Ho, Chen-Shao Hsu
  • Publication number: 20250149447
    Abstract: In a method of manufacturing a semiconductor device, a first conductive pattern is formed in a first interlayer dielectric (ILD) layer disposed over a substrate, a second ILD layer is formed over the first conductive pattern and the first ILD layer, a via contact is formed in the second ILD layer to contact an upper surface of the first conductive pattern, a second conductive pattern is formed over the via contact wherein a part of an upper surface of the via contact is exposed from the second conductive pattern in plan view, a part of the via contact is etched by using the second conductive pattern as an etching mask, thereby forming a space between the via contact and the second ILD layer, and a third ILD layer is formed over the second ILD layer.
    Type: Application
    Filed: December 30, 2024
    Publication date: May 8, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Shih-Ming CHANG
  • Patent number: 12265334
    Abstract: A method includes receiving a layout for fabricating a mask, determining a plurality of target contours corresponding to a plurality of sets of lithographic process conditions, determining a modification to the layout, simulating the modification to the layout under the plurality of sets of lithographic process conditions to produce a plurality of simulated contours, determining a cost of the modification to the layout based on comparisons between the plurality of simulated contours and corresponding ones in the plurality of target contours, and providing the modification to the layout for fabricating the mask based at least in part on the cost being within a predetermined threshold.
    Type: Grant
    Filed: July 30, 2023
    Date of Patent: April 1, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Dong-Yo Jheng, Ken-Hsien Hsieh, Shih-Ming Chang, Chih-Jie Lee, Shuo-Yen Chou, Ru-Gun Liu
  • Publication number: 20250096004
    Abstract: The present disclosure provides a method of manufacturing a semiconductor structure. The method includes providing a substrate; depositing a mask layer over the substrate; forming a mandrel pattern over the mask layer; forming a spacer pattern around the mandrel pattern; removing the mandrel pattern; and applying at least one directional etching operation along a first direction to etch two opposing ends of the spacer pattern and form a first spacer feature and a second spacer feature apart from each other.
    Type: Application
    Filed: December 4, 2024
    Publication date: March 20, 2025
    Inventors: HSIN-YUAN LEE, CHIH-MIN HSIAO, CHIEN-WEN LAI, SHIH-MING CHANG
  • Patent number: 12243741
    Abstract: A method includes forming a conductive member over a first conductive line; forming a second conductive line over the conductive member; and removing a portion of the conductive member exposed by the second conductive line to form a conductive via. The formation of the second conductive line is implemented prior to the formation of the conductive via. A semiconductor structure includes a first conductive line having a first surface; a second conductive line disposed above the first conductive line and having a second surface overlapping the first surface; and a conductive via electrically connected to the first surface and the second surface. The conductive via includes a first end disposed within the first surface, a second end disposed within the second surface, and a cross-section between the first end and the second end, wherein at least two of interior angles of the cross-section are substantially unequal to 90°.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: March 4, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Johnny Chiahao Li, Shih-Ming Chang, Ken-Hsien Hsieh, Chi-Yu Lu, Yung-Chen Chien, Hui-Zhong Zhuang, Jerry Chang Jui Kao, Xiangdong Chen
  • Patent number: 12224237
    Abstract: In a method of manufacturing a semiconductor device, a first conductive layer is formed over a first interlayer dielectric (ILD) layer disposed over a substrate, a second ILD layer is formed over the first conductive layer, a via is formed in the second ILD layer to contact an upper surface of the first conductive layer, a hard mask pattern is formed over the second ILD layer, the second ILD layer and the first conductive layer are patterned by using the hard mask pattern as an etching mask, thereby forming patterned second ILD layers and first wiring patterns, after the patterning, the hard mask pattern is removed, and a third ILD layer is formed between the patterned second ILD layers and the first wiring patterns.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: February 11, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Shih-Ming Chang, Yu-Tse Lai
  • Patent number: 12224241
    Abstract: In a method of manufacturing a semiconductor device, a first conductive pattern is formed in a first interlayer dielectric (ILD) layer disposed over a substrate, a second ILD layer is formed over the first conductive pattern and the first ILD layer, a via contact is formed in the second ILD layer to contact an upper surface of the first conductive pattern, a second conductive pattern is formed over the via contact wherein a part of an upper surface of the via contact is exposed from the second conductive pattern in plan view, a part of the via contact is etched by using the second conductive pattern as an etching mask, thereby forming a space between the via contact and the second ILD layer, and a third ILD layer is formed over the second ILD layer.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: February 11, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: Shih-Ming Chang
  • Patent number: 12191155
    Abstract: The present disclosure provides a method of manufacturing a semiconductor structure. The method includes providing a substrate; depositing a mask layer over the substrate; forming a mandrel pattern over the mask layer; forming a spacer pattern around the mandrel pattern; removing the mandrel pattern; and applying at least one directional etching operation along a first direction to etch two opposing ends of the spacer pattern and form a first spacer feature and a second spacer feature apart from each other.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: January 7, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Hsin-Yuan Lee, Chih-Min Hsiao, Chien-Wen Lai, Shih-Ming Chang
  • Publication number: 20240395701
    Abstract: In a method of manufacturing a semiconductor device, a first conductive layer is formed over a first interlayer dielectric (ILD) layer disposed over a substrate, a second ILD layer is formed over the first conductive layer, a via is formed in the second ILD layer to contact an upper surface of the first conductive layer, a hard mask pattern is formed over the second ILD layer, the second ILD layer and the first conductive layer are patterned by using the hard mask pattern as an etching mask, thereby forming patterned second ILD layers and first wiring patterns, after the patterning, the hard mask pattern is removed, and a third ILD layer is formed between the patterned second ILD layers and the first wiring patterns.
    Type: Application
    Filed: July 31, 2024
    Publication date: November 28, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shih-Ming CHANG, Yu-Tse LAI
  • Publication number: 20240395549
    Abstract: In a method of manufacturing a semiconductor device, a conductive pattern is formed in a surface region of a dielectric layer, a mask pattern including an opening over the conductive pattern is formed over the dielectric layer, a part of the conductive pattern is converted into a high-resistant part having a higher resistivity than the conductive pattern before the converting through the opening, and the mask pattern is removed.
    Type: Application
    Filed: July 31, 2024
    Publication date: November 28, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shih-Ming CHANG, Yu-Tse LAI, Yu-Fu WANG
  • Publication number: 20240395708
    Abstract: A semiconductor processing system includes a layout database that stores a plurality of layouts indicating features to be formed in a wafer. The semiconductor processing system includes a layout analyzer that analyzes the layouts and determines, for each layout, whether a non-perpendicular particle bombardment process should be utilized in conjunction with a photolithography process for forming the features of the layout in a wafer.
    Type: Application
    Filed: July 30, 2024
    Publication date: November 28, 2024
    Inventors: Yu-Tien SHEN, Ken-Hsien HSIEH, Shih-Ming CHANG
  • Publication number: 20240385545
    Abstract: A method of performing a lithography process includes providing a test pattern. The test pattern includes a first set of lines arranged at a first pitch, a second set of lines arranged at the first pitch, and further includes at least one reference line between the first set of lines and the second set of lines. The test pattern is exposed with a radiation source providing an asymmetric, monopole illumination profile to form a test pattern structure on a substrate. The test pattern structure is then measured and a measured distance correlated to an offset of a lithography parameter. A lithography process is adjusted based on the offset of the lithography parameter.
    Type: Application
    Filed: July 29, 2024
    Publication date: November 21, 2024
    Inventors: Chih-Jie Lee, Shih-Chun Huang, Shih-Ming Chang, Ken-Hsien Hsieh, Yun-Sung Yen, Ru-Gun Liu
  • Publication number: 20240387149
    Abstract: The current disclosure includes a plasma etching system that includes a movable plasma source and a moveable wafer stage. A relative position between the movable plasma source and the movable wafer stage can be varied to set up an angle along which plasma particles of the plasma hits a wafer positioned on the wafer stage.
    Type: Application
    Filed: July 29, 2024
    Publication date: November 21, 2024
    Inventors: Chun-Yen CHANG, Yu-Tien SHEN, Chih-Kai YANG, Ya-Hui CHANG, Shih-Ming CHANG
  • Publication number: 20240379358
    Abstract: The present disclosure provides a method of patterning a target material layer over a semiconductor substrate. The method includes steps of forming a spacer feature over the target material layer using a first sub-layout and performing a photolithographic patterning process using a second sub-layout to form a first feature. A portion of the first feature extends over the spacer feature. The method further includes steps of removing the portion of the first feature extending over the spacer feature and removing the spacer feature. Other methods and associated patterned semiconductor wafers are also provided herein.
    Type: Application
    Filed: July 22, 2024
    Publication date: November 14, 2024
    Inventors: Tsong-Hua Ou, Ken-Hsien Hsieh, Shih-Ming Chang, Wen-Chun Huang, Chih-Ming Lai, Ru-Gun Liu, Tsai-Sheng Gau
  • Publication number: 20240371868
    Abstract: An integrated circuit includes a semiconductor substrate, an isolation region extending into, and overlying a bulk portion of, the semiconductor substrate, a buried conductive track comprising a portion in the isolation region, and a transistor having a source/drain region and a gate electrode. The source/drain region or the gate electrode is connected to the buried conductive track.
    Type: Application
    Filed: July 16, 2024
    Publication date: November 7, 2024
    Inventors: Pochun Wang, Ting-Wei Chiang, Chih-Ming Lai, Hui-Zhong Zhuang, Jung-Chan Yang, Ru-Gun Liu, Shih-Ming Chang, Ya-Chi Chou, Yi-Hsiung Lin, Yu-Xuan Huang, Guo-Huei Wu, Yu-Jung Chang