Patents by Inventor Chih-Wei Lu

Chih-Wei Lu 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: 20250253250
    Abstract: A circuit device having an interlayer dielectric with pillar-type air gaps and a method of forming the circuit device are disclosed. In an exemplary embodiment, the method comprises receiving a substrate and depositing a first layer over the substrate. A copolymer layer that includes a first constituent polymer and a second constituent polymer is formed over the first layer. The first constituent polymer is selectively removed from the copolymer layer. A first region of the first layer corresponding to the selectively removed first constituent polymer is etched. The etching leaves a second region of the first layer underlying the second constituent polymer unetched. A metallization process is performed on the etched substrate, and the first layer is removed from the second region to form an air gap. The method may further comprise depositing a dielectric material within the etched first region.
    Type: Application
    Filed: March 21, 2025
    Publication date: August 7, 2025
    Inventors: Chih Wei LU, Tien-I BAO, Chung-Ju LEE
  • Patent number: 12368046
    Abstract: Semiconductor device and the manufacturing method thereof are disclosed herein. An exemplary method of forming a semiconductor device comprises receiving a structure including a substrate and a first hard mask over the substrate, the first hard mask having at least two separate portions; forming spacers along sidewalls of the at least two portions of the first hard mask with a space between the spacers; forming a second hard mask in the space; forming a first cut in the at least two portions of the first hard mask; forming a second cut in the second hard mask; and depositing a cut hard mask in the first cut and the second cut.
    Type: Grant
    Filed: December 18, 2023
    Date of Patent: July 22, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hsi-Wen Tien, Wei-Hao Liao, Pin-Ren Dai, Chih Wei Lu, Chung-Ju Lee
  • Publication number: 20250225657
    Abstract: Provided herein is a method of segmenting features from an optical image of a skin comprising steps of receiving an optical image of a skin that contains at least one feature of an object: contrast-enhancing the feature's signals of the optical image from the background signals: segmenting the object in the enhanced optical image, and quantifying the feature from the optical image of the skin.
    Type: Application
    Filed: August 2, 2022
    Publication date: July 10, 2025
    Inventors: I-Ling CHEN, Chih-Wei LU
  • Patent number: 12354881
    Abstract: A semiconductor structure includes a conductive feature disposed over a semiconductor substrate, a via disposed in a first interlayer dielectric (ILD) layer over the conductive feature, and a metal-containing etch-stop layer (ESL) disposed on the via, where the metal-containing ESL includes a first metal and is resistant to etching by a fluorine-containing etchant. The semiconductor structure further includes a conductive line disposed over the metal-containing ESL, where the conductive line includes a second metal different from the first metal and is etchable by the fluorine-containing etchant, and where the via is configured to interconnect the conductive line to the conductive feature. Furthermore, the semiconductor structure includes a second ILD layer disposed over the first ILD layer.
    Type: Grant
    Filed: February 26, 2024
    Date of Patent: July 8, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Wei-Hao Liao, Hsi-Wen Tien, Chih Wei Lu, Pin-Ren Dai, Chung-Ju Lee
  • Publication number: 20250219033
    Abstract: A bonding structure, including a first dielectric layer, multiple first conductors, a second dielectric layer, and multiple second conductors, is provided. The first conductors are embedded in the first dielectric layer, the first dielectric layer is bonded with the second dielectric layer, and the second conductors are embedded in the second dielectric layer, wherein the first conductors are bonded with the second conductors, and a bonding interface between the first conductors and the second conductors is a bonding interface containing silver.
    Type: Application
    Filed: February 5, 2024
    Publication date: July 3, 2025
    Applicant: Industrial Technology Research Institute
    Inventors: Jui-Wen Yang, Chieh-Wei Feng, Chih Wei Lu, Hsien-Wei Chiu, Tai-Jui Wang
  • Publication number: 20250191971
    Abstract: The present disclosure relates to an integrated chip. The integrated chip comprises a dielectric layer over a substrate. A first metal feature is over the dielectric layer. A second metal feature is over the dielectric layer and is laterally adjacent to the first metal feature. A first dielectric liner segment extends laterally between the first metal feature and the second metal feature along an upper surface of the dielectric layer. The first dielectric liner segment extends continuously from along the upper surface of the dielectric layer, to along a sidewall of the first metal feature that faces the second metal feature, and to along a sidewall of the second metal feature that faces the first metal feature. A first cavity is laterally between sidewalls of the first dielectric liner segment and is above an upper surface of the first dielectric liner segment.
    Type: Application
    Filed: February 19, 2025
    Publication date: June 12, 2025
    Inventors: Hsi-Wen Tien, Chung-Ju Lee, Chih Wei Lu, Hsin-Chieh Yao, Shau-Lin Shue, Yu-Teng Dai, Wei-Hao Liao
  • Publication number: 20250191973
    Abstract: In one embodiment, a method of forming metal interconnects uses a direct metal etch approach to form and fill the metal gap. The method may include directly etching a metal layer to form metal patterns. The metal patterns may be spaced apart from one another by recesses. A dielectric spacer may be formed extending along the sidewalls of each of the recesses. The recesses may be filled with a conductive material to form a second set of metal patterns. By directly etching the metal film, the technique allows for reduced line width roughness. The disclosed structure may have the advantages of increased reliability, better RC performance and reduced parasitic capacitance.
    Type: Application
    Filed: February 18, 2025
    Publication date: June 12, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hsi-Wen Tien, Wei-Hao Liao, Yu-Teng Dai, Hsin-Chieh Yao, Chih-Wei Lu, Chung-Ju Lee
  • Patent number: 12322723
    Abstract: The present disclosure relates to a semiconductor structure including an interconnect structure disposed over a semiconductor substrate. A lower metal line is disposed at a first height over the semiconductor substrate and extends through a first interlayer dielectric layer. A second interlayer dielectric layer is disposed at a second height over the semiconductor substrate and comprises a first dielectric material. An upper metal line is disposed at a third height over the semiconductor substrate. A via is disposed at the second height. The via extends between the lower metal line and the upper metal line. A protective dielectric structure is disposed at the second height. The protective dielectric structure comprises a protective dielectric material and is disposed along a first set of opposing sidewalls of the via, the protective dielectric material differing from the first dielectric material.
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: June 3, 2025
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hsin-Chieh Yao, Chung-Ju Lee, Chih Wei Lu, Hsi-Wen Tien, Yu-Teng Dai, Wei-Hao Liao
  • Patent number: 12315817
    Abstract: In some embodiments, the present disclosure relates to an integrated chip that includes a first interconnect dielectric layer over a substrate. An interconnect wire extends through the first interconnect dielectric layer, and a dielectric on wire structure is arranged directly over the interconnect wire. Outer sidewalls of the dielectric on wire structure are surrounded by the first interconnect dielectric layer. The integrated chip further includes a second interconnect dielectric layer arranged over the first interconnect dielectric layer, and an interconnect via that extends through the second interconnect dielectric layer and the dielectric on wire structure to contact the interconnect wire.
    Type: Grant
    Filed: May 3, 2023
    Date of Patent: May 27, 2025
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hsin-Chieh Yao, Chung-Ju Lee, Chih Wei Lu, Hsi-Wen Tien, Yu-Teng Dai, Wei-Hao Liao
  • Patent number: 12302761
    Abstract: A device includes a first dielectric layer, a magnetic tunnel junction (MTJ), an oxide layer, a cap layer, and a second dielectric layer. The MTJ is over the first dielectric layer. The oxide layer is over the first dielectric layer. The cap layer is over the first dielectric layer. The cap layer is in contact with a sidewall of the MTJ and a sidewall of the oxide layer. The second dielectric layer is over the cap layer.
    Type: Grant
    Filed: September 25, 2023
    Date of Patent: May 13, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hsi-Wen Tien, Wei-Hao Liao, Pin-Ren Dai, Chih-Wei Lu, Chung-Ju Lee
  • Patent number: 12300611
    Abstract: In some embodiments, the present disclosure relates to an integrated chip that includes a first interconnect dielectric layer arranged over a substrate, a second interconnect dielectric layer arranged over the first interconnect dielectric layer, and an interconnect conductive structure arranged within the second interconnect dielectric layer. The interconnect conductive structure includes an outer portion that includes a first conductive material. Further, the interconnect conductive structure includes a central portion having outermost sidewalls surrounding by the outer portion of the interconnect conductive structure. The central portion includes a second conductive material different than the first conductive material.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: May 13, 2025
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Teng Dai, Hsi-Wen Tien, Wei-Hao Liao, Hsin-Chieh Yao, Chih Wei Lu, Chung-Ju Lee
  • Publication number: 20250133800
    Abstract: A semiconductor device includes a MEOL structure and a BEOL structure. The BEOL structure is formed over the MEOL structure and includes a first dielectric layer, a spacer and a conductive portion. The first dielectric layer has a lateral surface and a recess, wherein the recess is recessed with respect to the lateral surface. The spacer is formed the lateral surface and covers an opening of the recess. The conductive portion is formed adjacent to the spacer.
    Type: Application
    Filed: October 18, 2023
    Publication date: April 24, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hwei-Jay CHU, Hsi-Wen TIEN, Wei-Hao LIAO, Yu-Teng DAI, Hsin-Chieh YAO, Chih-Wei LU, Cheng-Hao CHEN
  • Publication number: 20250125251
    Abstract: A semiconductor device includes a semiconductor substrate, a gate structure, strained layers, source/drain contact patterns, a gate contact via, and source/drain contact vias. The gate structure is disposed over the semiconductor substrate. The strained layers are disposed aside the gate structure. The source/drain contact patterns are disposed on and electrically connected to the strained layers. Top surfaces of the source/drain contact patterns are coplanar with a top surface of the gate structure. The gate contact via is disposed on and electrically connected to the gate structure. The source/drain contact vias are disposed on and electrically connected to the source/drain contact patterns.
    Type: Application
    Filed: October 16, 2023
    Publication date: April 17, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Li-Ling Su, Chia-Wei Su, Tsu-Chun Kuo, Wei-Hao Liao, Hsin-Ping Chen, Yung-Hsu Wu, Ming-Han Lee, Shin-Yi Yang, Chih Wei LU, Hsi-Wen Tien, Meng-Pei Lu
  • Publication number: 20250125189
    Abstract: A method for manufacturing an interconnect structure includes: forming a first dielectric layer; forming a mask; patterning the first dielectric layer through the mask to form a trench, an inner surface of the trench having two first portions opposite to each other along an X direction, two second portions opposite to each other along a Y direction, and a bottom portion; forming a second dielectric layer over the mask and the patterned first dielectric layer, and along an inner surface of the trench; etching the second dielectric layer by directing an etchant in a predetermined direction such that a first part of the second dielectric layer on the two first portions and the bottom portion is removed, and a second part of the second dielectric layer on the second portions of the trench remains and is formed into two reinforcing spacers; and forming a trench-filling element.
    Type: Application
    Filed: October 13, 2023
    Publication date: April 17, 2025
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Wei-Hao LIAO, Hsi-Wen TIEN, Chih-Wei LU, Hwei-Jay CHU, Yu-Teng DAI, Hsin-Chieh YAO, Yung-Hsu WU, Li-Ling SU, Chia-Wei SU, Hsin-Ping CHEN
  • Publication number: 20250118656
    Abstract: A semiconductor device and method of manufacturing the same are provided. The semiconductor device includes a substrate, a first conductive line, a first conductive via, a second conductive line, and a first barrier layer. The first conductive line is disposed on the substrate. The first conductive via is disposed on the first conductive line. The second conductive line is disposed on the first conductive line. The first barrier layer is disposed between the first conductive via and the second conductive line.
    Type: Application
    Filed: October 6, 2023
    Publication date: April 10, 2025
    Inventors: HWEI-JAY CHU, HSI-WEN TIEN, WEI-HAO LIAO, YU-TENG DAI, HSIN-CHIEH YAO, CHENG-HAO CHEN, CHIH WEI LU
  • Publication number: 20250112087
    Abstract: A method for fabricating an integrated circuit device is provided. The method includes depositing a first dielectric layer; depositing a second dielectric layer over the first dielectric layer; etching a trench opening in the second dielectric layer, wherein the trench opening exposes a first sidewall of the second dielectric layer and a second sidewall of the second dielectric layer, the first sidewall of the second dielectric layer extends substantially along a first direction, and the second sidewall of the second dielectric layer extends substantially along a second direction different from the first direction in a top view; forming a via etch stop layer on the first sidewall of the second dielectric layer, wherein the second sidewall of the second dielectric layer is free from coverage by the via etch stop layer; forming a conductive line in the trench opening; and forming a conductive via over the conductive line.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 3, 2025
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hwei-Jay CHU, Hsi-Wen TIEN, Wei-Hao LIAO, Yu-Teng DAI, Hsin-Chieh YAO, Tzu-Hui WEI, Chih Wei LU, Chan-Yu LIAO, Li-Ling SU, Chia-Wei SU, Yung-Hsu WU, Hsin-Ping CHEN
  • Patent number: 12266565
    Abstract: The present disclosure relates to an integrated chip. The integrated chip comprises a dielectric layer over a substrate. A first metal feature is over the dielectric layer. A second metal feature is over the dielectric layer and is laterally adjacent to the first metal feature. A first dielectric liner segment extends laterally between the first metal feature and the second metal feature along an upper surface of the dielectric layer. The first dielectric liner segment extends continuously from along the upper surface of the dielectric layer, to along a sidewall of the first metal feature that faces the second metal feature, and to along a sidewall of the second metal feature that faces the first metal feature. A first cavity is laterally between sidewalls of the first dielectric liner segment and is above an upper surface of the first dielectric liner segment.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: April 1, 2025
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hsi-Wen Tien, Chung-Ju Lee, Chih Wei Lu, Hsin-Chieh Yao, Shau-Lin Shue, Yu-Teng Dai, Wei-Hao Liao
  • Patent number: 12261121
    Abstract: A circuit device having an interlayer dielectric with pillar-type air gaps and a method of forming the circuit device are disclosed. In an exemplary embodiment, the method comprises receiving a substrate and depositing a first layer over the substrate. A copolymer layer that includes a first constituent polymer and a second constituent polymer is formed over the first layer. The first constituent polymer is selectively removed from the copolymer layer. A first region of the first layer corresponding to the selectively removed first constituent polymer is etched. The etching leaves a second region of the first layer underlying the second constituent polymer unetched. A metallization process is performed on the etched substrate, and the first layer is removed from the second region to form an air gap. The method may further comprise depositing a dielectric material within the etched first region.
    Type: Grant
    Filed: July 28, 2023
    Date of Patent: March 25, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chih Wei Lu, Chung-Ju Lee, Tien-I Bao
  • Patent number: 12243775
    Abstract: In one embodiment, a method of forming metal interconnects uses a direct metal etch approach to form and fill the metal gap. The method may include directly etching a metal layer to form metal patterns. The metal patterns may be spaced apart from one another by recesses. A dielectric spacer may be formed extending along the sidewalls of each of the recesses. The recesses may be filled with a conductive material to form a second set of metal patterns. By directly etching the metal film, the technique allows for reduced line width roughness. The disclosed structure may have the advantages of increased reliability, better RC performance and reduced parasitic capacitance.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: March 4, 2025
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hsi-Wen Tien, Wei-Hao Liao, Yu-Teng Dai, Hsin-Chieh Yao, Chih-Wei Lu, Chung-Ju Lee
  • Patent number: 12211845
    Abstract: In a method of manufacturing a semiconductor device, first and second gate structures are formed. The first (second) gate structure includes a first (second) gate electrode layer and first (second) sidewall spacers disposed on both side faces of the first (second) gate electrode layer. The first and second gate electrode layers are recessed and the first and second sidewall spacers are recessed, thereby forming a first space and a second space over the recessed first and second gate electrode layers and first and second sidewall spacers, respectively. First and second protective layers are formed in the first and second spaces, respectively. First and second etch-stop layers are formed on the first and second protective layers, respectively. A first depth of the first space above the first sidewall spacers is different from a second depth of the first space above the first gate electrode layer.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: January 28, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hsiang-Ku Shen, Chih Wei Lu, Hui-Chi Chen, Jeng-Ya David Yeh