Patents by Inventor Chih-Sheng Chang

Chih-Sheng 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: 20230215801
    Abstract: An interconnection structure includes a first interconnection level, a second interconnection level, a third interconnection level, and a super via structure. The second interconnection level is disposed on the first interconnection level, and the third interconnection level is disposed on the second interconnection level. The second interconnection level includes a second conductive layer and a block layer disposed in a dielectric layer. A bottom surface of the block layer is lower than a top surface of the second conductive layer in a vertical direction. The block layer is disposed between a first conductive layer of the first interconnection level and a third conductive layer of the third interconnection level in the vertical direction. The super via structure penetrates through the block layer and the second interconnection level in the vertical direction and electrically connects the first conductive layer and the third conductive layer.
    Type: Application
    Filed: February 14, 2022
    Publication date: July 6, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Min-Shiang Hsu, Yu-Han Tsai, Chih-Sheng Chang
  • Patent number: 11664333
    Abstract: A method of manufacturing a die seal ring including the following steps is provided. A dielectric layer is formed on a substrate. Conductive layers stacked on the substrate are formed in the dielectric layer. Each of the conductive layers includes a first conductive portion and a second conductive portion. The second conductive portion is disposed on the first conductive portion. A width of the first conductive portion is smaller than a width of the second conductive portion. A first air gap is formed between a sidewall of the first conductive portion and the dielectric layer. A second air gap is formed between a sidewall of the second conductive portion and the dielectric layer.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: May 30, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Shih-Che Huang, Shih-Hsien Chen, Ching-Li Yang, Chih-Sheng Chang
  • Patent number: 11656392
    Abstract: An optical element including a substrate, a first optical film and a second optical film. The first optical film and the second optical film are disposed on at least one side of the substrate and are both formed on the substrate. The first optical film has a first surface facing away from the substrate and a plurality of first optical microstructures disposed on the first surface. The second optical film has a second surface facing away from the substrate and a plurality of second optical microstructures disposed on the second surface. The orthogonal projection of the first optical microstructures on the substrate does not overlap the orthogonal projection of the second optical microstructures on the substrate. A wafer level optical module adopting the optical element is also provided.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: May 23, 2023
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chih-Sheng Chang, Meng-Ko Tsai, Teng Te Huang
  • Publication number: 20230154998
    Abstract: In a method of manufacturing a negative capacitance structure, a dielectric layer is formed over a substrate. A first metallic layer is formed over the dielectric layer. After the first metallic layer is formed, an annealing operation is performed, followed by a cooling operation. A second metallic layer is formed. After the cooling operation, the dielectric layer becomes a ferroelectric dielectric layer including an orthorhombic crystal phase. The first metallic film includes a oriented crystalline layer.
    Type: Application
    Filed: January 23, 2023
    Publication date: May 18, 2023
    Inventors: Chun-Chieh LU, Carlos H. DIAZ, Chih-Sheng CHANG, Cheng-Yi PENG, Ling-Yen YEH
  • Patent number: 11644683
    Abstract: The optical component includes a first substrate, a first diffractive layer formed on the first substrate, a second substrate, a second diffractive layer formed on the second substrate, and a bonding material disposed between the first substrate and the second substrate and connecting the first substrate and the second substrate. The second diffractive layer is disposed opposite to the first diffractive layer, and both the first diffractive layer and the second diffractive layer are located between the first substrate and the second substrate. A gap is formed between the first diffractive layer and the second diffractive layer.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: May 9, 2023
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chih-Sheng Chang, Meng-Ko Tsai, Teng-Te Huang, Yin-Dong Lu
  • Patent number: 11646264
    Abstract: The invention provides a semiconductor structure. The semiconductor structure includes a substrate, a first inter metal dielectric (IMD) layer, a second inter metal dielectric layer and a third inter metal dielectric layer sequentially arranged on the substrate. The first inter metal dielectric layer includes at least one first wire, the second inter metal dielectric layer includes at least one mask layer, and the third inter metal dielectric layer includes at least one third wire and a super via. The super via penetrates through the second inter metal dielectric layer, and electrically connect to the first wire and the third wire, and part of the super via directly contacts the mask layer in the second inter metal dielectric layer.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: May 9, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Min-Shiang Hsu, Yu-Han Tsai, Chih-Sheng Chang
  • Publication number: 20230140053
    Abstract: A semiconductor structure includes a base layer, a metal-containing gate, a high-k layer and a spacer. The metal-containing gate is disposed over the base layer. The high-k layer is disposed between the base layer and the metal-containing gate. The high-k layer has a protruding portion that protrudes out from a bottom of the metal-containing gate. The spacer is disposed on the sidewall of the metal-containing gate and covers the protruding portion of the high-k layer.
    Type: Application
    Filed: January 20, 2022
    Publication date: May 4, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Chao Lin, Chih-Sheng Chang
  • Patent number: 11631755
    Abstract: In a method of manufacturing a negative capacitance structure, a dielectric layer is formed over a substrate. A first metallic layer is formed over the dielectric layer. After the first metallic layer is formed, an annealing operation is performed, followed by a cooling operation. A second metallic layer is formed. After the cooling operation, the dielectric layer becomes a ferroelectric dielectric layer including an orthorhombic crystal phase.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: April 18, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chun-Chieh Lu, Cheng-Yi Peng, Chien-Hsing Lee, Ling-Yen Yeh, Chih-Sheng Chang, Carlos H. Diaz
  • Publication number: 20230091820
    Abstract: The present invention provides an antimicrobial ceramic tile and manufacturing method thereof. A manufacturing method of an antimicrobial ceramic tile comprises: grinding soils into slurries; drying the slurries into powders by hot air; pressing the powders into a green body through a molding machine; dotting or spraying or showering a glaze slurry on the surface of the green body to form an engobe; dotting the glaze slurry on the engobe to form a ground glaze; mixing a surface glaze and an antimicrobial material into an antimicrobial glaze in a weight ratio of 100:5˜10; grinding water and the antimicrobial glaze into the antimicrobial glaze in a weight ratio of 5˜6:4˜5; and dotting antimicrobial glaze on the ground glaze; finally, rapidly firing the ceramic tile and the antimicrobial glaze into an antimicrobial ceramic tile.
    Type: Application
    Filed: August 16, 2022
    Publication date: March 23, 2023
    Inventor: Chih-Sheng Chang
  • Publication number: 20230050928
    Abstract: A semiconductor device includes a first metal interconnection disposed on a substrate, a second metal interconnection disposed on the first metal interconnection, a first contact via disposed between the first metal interconnection and the second metal interconnection, a first serpent metal line connecting to a first end of the first metal interconnection, and a second serpent metal line connecting to a second end of the first metal interconnection. Preferably, the first serpent metal line, the second serpent metal line, and the first metal interconnection are on a same level.
    Type: Application
    Filed: September 10, 2021
    Publication date: February 16, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Shih-Che Huang, Ching-Chih Chang, Yuan-Fu Ko, Chih-Sheng Chang
  • Publication number: 20230047476
    Abstract: A compound control circuit comprises an input end, a light-load signal processing circuit, a slow response circuit and a fast response circuit. The compound control circuit is mainly used as an additional circuit of a work control chip, so that although the work control chip only has a single overcurrent protection level, a compound function control of fast and slow speed, high and low level current protection and light-load signal stabilization can be generated through the compound control circuit, so as to meet the complex application environment and compatible requirements of the current power supply.
    Type: Application
    Filed: August 16, 2021
    Publication date: February 16, 2023
    Inventors: Sheng-Chien CHOU, Chih-Sheng CHANG
  • Patent number: 11567477
    Abstract: A fan driving circuit with temperature compensation comprises a power input end, a power output end connected with a fan motor, a first transistor arranged between the power input end and the power output end, a signal adjuster connected with the first transistor and connected with a signal generating circuit, a second transistor connected with the signal adjuster, and a feedback unit. The feedback unit comprises a first resistor and a second resistor connected in series, and a compensation bypass connected in parallel with the first resistor or the second resistor, wherein the compensation bypass comprises a thermistor, a resistance of the thermistor changes along with the temperature and changes a magnitude of a feedback current which is provided to the second transistor, so as to compensate a change of a common emitter current gain in the second transistor generated by the temperature.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: January 31, 2023
    Assignee: SEA SONIC ELECTRONICS CO., LTD.
    Inventors: Sheng-Chien Chou, Chih-Sheng Chang, Cheng-Yung Lo
  • Patent number: 11563102
    Abstract: In a method of manufacturing a negative capacitance structure, a dielectric layer is formed over a substrate. A first metallic layer is formed over the dielectric layer. After the first metallic layer is formed, an annealing operation is performed, followed by a cooling operation. A second metallic layer is formed. After the cooling operation, the dielectric layer becomes a ferroelectric dielectric layer including an orthorhombic crystal phase. The first metallic film includes a oriented crystalline layer.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: January 24, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chun-Chieh Lu, Carlos H. Diaz, Chih-Sheng Chang, Cheng-Yi Peng, Ling-Yen Yeh
  • Publication number: 20220416013
    Abstract: A method for fabricating a metal-insulator-metal (MIM) capacitor is provided. The MIM capacitor includes a substrate, a first metal layer, a deposition structure, a dielectric layer and a second metal layer. The first metal layer is disposed on the substate and has a planarized surface. The deposition structure is disposed on the first metal layer, and at least a portion of the deposition structure extends into the planarized surface, wherein the first metal layer and the deposition structure have the same material. The dielectric layer is disposed on the deposition structure. The second metal layer is disposed on the dielectric layer.
    Type: Application
    Filed: August 31, 2022
    Publication date: December 29, 2022
    Inventors: Bo-Wei HUANG, Chun-Wei KANG, Ho-Yu LAI, Chih-Sheng CHANG
  • Publication number: 20220392798
    Abstract: A method for fabricating semiconductor device includes the steps of: forming a first inter-metal dielectric (IMD) layer on a substrate; forming a first metal interconnection in the first IMD layer; removing part of the first IMD layer; forming a spacer adjacent to the first metal interconnection; forming a second IMD layer on the spacer and the first metal interconnection; and forming a second metal interconnection in the second IMD layer and on the spacer and the first metal interconnection.
    Type: Application
    Filed: August 16, 2022
    Publication date: December 8, 2022
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Ching-Chih Chang, Yuan-Fu Ko, Chih-Sheng Chang
  • Publication number: 20220384254
    Abstract: A metal interconnect structure includes a first metal interconnection in an inter-metal dielectric (IMD) layer on a substrate, a second metal interconnection on the first metal interconnection, and a cap layer between the first metal interconnection and the second metal interconnection. Preferably, a top surface of the first metal interconnection is even with a top surface of the IMD layer and the cap layer is made of conductive material.
    Type: Application
    Filed: August 9, 2022
    Publication date: December 1, 2022
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Yi-How Chou, Tzu-Hao Fu, Tsung-Yin Hsieh, Chih-Sheng Chang, Shih-Chun Tsai, Kun-Chen Ho, Yang-Chou Lin
  • Patent number: 11515159
    Abstract: The present invention further provides a method for forming a semiconductor device, the method including: first, a target layer is provided, an etching stop layer is formed on the target layer, a top oxide layer is formed on the etching stop layer, afterwards, a first photoresist layer is formed on the top oxide layer, and a first etching process is then performed, to form a plurality of first trenches in the top oxide layer. Next, a second photoresist layer is formed on the top oxide layer, portion of the second photoresist layer fills in each first trench, a second etching process is then performed to form a plurality of second trenches in the top oxide layer, and using the remaining etching stop layer as a hard mask, a third etching process is performed to remove parts of the etching stop layer and parts of the target layer.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: November 29, 2022
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Ching-Chih Chang, Yuan-Fu Ko, Chih-Sheng Chang
  • Patent number: 11513145
    Abstract: A semiconductor test device for measuring a contact resistance includes: first fin structures, upper portions of the first fin structures protruding from an isolation insulating layer; epitaxial layers formed on the upper portions of the first fin structures, respectively; first conductive layers formed on the epitaxial layers, respectively; a first contact layer disposed on the first conductive layers at a first point; a second contact layer disposed on the first conductive layers at a second point apart from the first point; a first pad coupled to the first contact layer via a first wiring; and a second pad coupled to the second contact layer via a second wiring. The semiconductor test device is configured to measure the contact resistance between the first contact layer and the first fin structures by applying a current between the first pad and the second pad.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: November 29, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Cheng-Yi Peng, Chia-Cheng Ho, Ming-Shiang Lin, Chih-Sheng Chang, Carlos H. Diaz
  • Publication number: 20220336478
    Abstract: A semiconductor device includes a ferroelectric field-effect transistor (FeFET), wherein the FeFET includes a substrate; a source region in the substrate; a drain region in the substrate; and a gate structure over the substrate and between the source region and the drain region. The gate structure includes a gate dielectric layer over the substrate; a ferroelectric film over the gate dielectric layer; and a gate electrode over the ferroelectric film.
    Type: Application
    Filed: June 29, 2022
    Publication date: October 20, 2022
    Inventor: Chih-Sheng Chang
  • Patent number: 11469294
    Abstract: A metal-insulator-metal (MIM) capacitor includes a substrate, a first metal layer, a deposition structure, a dielectric layer and a second metal layer. The first metal layer is disposed on the substrate and has a planarized surface. The deposition structure is disposed on the first metal layer, and at least a portion of the deposition structure extends into the planarized surface, wherein the first metal layer and the deposition structure have the same material. The dielectric layer is disposed on the deposition structure. The second metal layer is disposed on the dielectric layer.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: October 11, 2022
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Bo-Wei Huang, Chun-Wei Kang, Ho-Yu Lai, Chih-Sheng Chang