Patents by Inventor An-Chih Chang

An-Chih 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: 11868839
    Abstract: A device detecting system is provided. The device detecting system includes a bar code scanner, a plurality of device accommodating spaces, a screen, and a server. The server obtains bar code information via the bar code scanner and opens one of the device accommodating spaces based on the bar code information to accommodate an electronic device. The server performs a test procedure on the electronic device to generate a test result, and displays the test result and operation information corresponding to the test result on the screen.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: January 9, 2024
    Assignee: ASUSTEK COMPUTER INC.
    Inventors: Chien-Chih Chang, Pei-Yin Chen, Wei-Han Lin, Bo-Rong Chu, Yen-Ting Liu, Yu-Shen Mai, Kuan-Yu Hsiao, Chia-Hsien Lin, Pei-Yu Liao, Chun-Yen Lai, Sheng-Yi Chen
  • Patent number: 11871146
    Abstract: A video processor is configured to perform the following steps: receiving a series of input frames; calculating a buffer stage value according to the series of input frames, wherein the buffer stage value corresponds to a status of the input frames stored in a frame buffer of the video processor; and selecting a frame set from the input frames stored in the frame buffer for generating an interpolated frame as an output frame to be output by the video processor according to the buffer stage value.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: January 9, 2024
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Chih Chang, I-Feng Lin, Hsiao-En Chang
  • Patent number: 11858272
    Abstract: An ink circulation system, including an ink cartridge, an ink tank, an ink pump, first, second, and third valves, a print head, a heating assembly, and a positive-negative pressure assembly, is provided. The ink cartridge has an output pipeline and an ink cartridge valve. The ink tank is disposed on one side of the ink cartridge and connected to the output pipeline. The ink pump is connected to the output pipeline and the ink tank through an ink pipeline. The first valve is connected to the ink tank through a first pipeline. The second valve is disposed on the output pipeline. The third valve is connected to the output pipeline and the ink pipeline through a return pipeline. The print head is connected to the ink tank and the return pipeline. The heating assembly is disposed in the ink tank. The positive-negative pressure assembly is connected to the first pipeline.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: January 2, 2024
    Assignee: Kinpo Electronics, Inc.
    Inventors: Po-Chih Chang, Pei-Chi Ho, Ya-Ching Tung, Chi-Kuang Shen, Shou-Chih Sun, Yao-Te Huang
  • Publication number: 20230420292
    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: September 6, 2023
    Publication date: December 28, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Ching-Chih Chang, Yuan-Fu Ko, Chih-Sheng Chang
  • Patent number: 11851325
    Abstract: Methods for improving wafer bonding performance are disclosed herein. In some embodiments, a method for bonding a pair of semiconductor substrates is disclosed. The method includes: processing at least one of the pair of semiconductor substrates, and bonding the pair of semiconductor substrates together. Each of the pair of semiconductor substrates is processed by: performing at least one chemical vapor deposition (CVD), and performing at least one chemical mechanical polishing (CMP). One of the at least one CVD is performed after all CMP performed before bonding.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: December 26, 2023
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chien-Wei Chang, Ya-Jen Sheuh, Ren-Dou Lee, Yi-Chih Chang, Yi-Hsun Chiu, Yuan-Hsin Chi
  • Patent number: 11854961
    Abstract: A package substrate includes a substrate, an insulating protective layer and an interposer. The substrate has a first surface and a second surface opposing to the first surface. The substrate includes a plurality of first conductive pads embedded in the first surface. The insulating protective layer is disposed on the first surface of the substrate. The insulating protective layer has an opening for exposing the first conductive pads embedded in the first surface of the substrate. The interposer has a top surface and a bottom surface opposing to the top surface. The interposer includes a plurality of conductive vias and a plurality of second conductive pads located on the bottom surface. The interposer is located in a recess defined by the opening of the insulating protective layer and the first surface of the substrate. Each of the second conductive pads is electrically connected to corresponding first conductive pad.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: December 26, 2023
    Assignees: Industrial Technology Research Institute, Unimicron Technology Corp.
    Inventors: Yu-Hua Chen, Wei-Chung Lo, Tao-Chih Chang, Yu-Min Lin, Sheng-Tsai Wu
  • Patent number: 11854980
    Abstract: A method of forming a semiconductor device, comprising: forming a first conductive layer on an active device of a substrate; forming a dielectric layer on the first conductive layer; forming a through hole passing through the dielectric layer to expose a portion of the first conductive layer; conformally depositing a glue layer in the through hole to cover the portion of the first conductive layer comprising: forming a plurality of isolated lattices in an amorphous region at which the isolated lattices are uniformly distributed and extend from a top surface of the glue layer and terminate prior to reach a bottom of the glue layer, wherein the glue layer has a predetermined thickness; depositing a conductive material on the glue layer within the through hole, thereby forming a contact via; and forming a second conductive layer on the contact via over the first conductive layer.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: December 26, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chi-Ming Lu, Jung-Chih Tsao, Yao-Hsiang Liang, Chih-Chang Huang, Han-Chieh Huang
  • Patent number: 11855085
    Abstract: Methods of cutting gate structures, and structures formed, are described. In an embodiment, a structure includes first and second gate structures over an active area, and a gate cut-fill structure. The first and second gate structures extend parallel. The active area includes a source/drain region disposed laterally between the first and second gate structures. The gate cut-fill structure has first and second primary portions and an intermediate portion. The first and second primary portions abut the first and second gate structures, respectively. The intermediate portion extends laterally between the first and second primary portions. First and second widths of the first and second primary portions along longitudinal midlines of the first and second gate structures, respectively, are each greater than a third width of the intermediate portion midway between the first and second gate structures and parallel to the longitudinal midline of the first gate structure.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: December 26, 2023
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chih-Chang Hung, Chia-Jen Chen, Ming-Ching Chang, Shu-Yuan Ku, Yi-Hsuan Hsiao, I-Wei Yang
  • Publication number: 20230402521
    Abstract: A semiconductor device structure, along with methods of forming such, are described. The semiconductor device structure includes a substrate and an isolation structure disposed on the substrate and between two neighboring transistors. The isolation structure includes a dielectric feature, an insulating material disposed below the dielectric feature. The insulating material includes an upper portion comprising a first sidewall and a top surface in contact with the dielectric feature, and a bottom portion having a second sidewall, wherein the second sidewall is surrounded by and in contact with the substrate. The insulating material further includes a middle portion having a third sidewall disposed between the first sidewall and the second sidewall. The semiconductor device structure also includes a dielectric material in contact with the dielectric feature, the first sidewall, the third sidewall, and the substrate.
    Type: Application
    Filed: June 10, 2022
    Publication date: December 14, 2023
    Inventors: Tzu-Ging LIN, Chen-Yu TAI, Chun-Liang LAI, Chih-Chang HUNG
  • Patent number: 11841561
    Abstract: A semiconductor device include: a first bus waveguide; a first silicon ring optically coupled to the first bus waveguide; a backup silicon ring optically coupled to the first bus waveguide; a first heater and a second heater configured to heat the first silicon ring and the backup silicon ring, respectively; and a first switch, where the first switch is configured to electrically couple the first silicon ring to a first radio frequency (RF) circuit when the first switch is at a first switching position, and is configured to electrically couple the backup silicon ring to the first RF circuit when the first switch is at a second switching position.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: December 12, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Weiwei Song, Stefan Rusu, Chan-Hong Chern, Chih-Chang Lin
  • Publication number: 20230387112
    Abstract: A method includes forming a first semiconductor fin and a second semiconductor fin in a substrate, the first semiconductor fin adjacent the second semiconductor fin, forming a dummy gate structure extending over the first semiconductor fin and the second semiconductor fin, depositing a first dielectric material surrounding the dummy gate structure, replacing the dummy gate structure with a first metal gate structure, performing an etching process on the first metal gate structure and on the first dielectric material to form a first recess in the first metal gate structure and a second recess in the first dielectric material, wherein the first recess extends into the substrate, and wherein the second recess is disposed between the first semiconductor fin and the second semiconductor fin, and depositing a second dielectric material within the first recess.
    Type: Application
    Filed: July 26, 2023
    Publication date: November 30, 2023
    Inventors: Jen-Chih Hsueh, Chih-Chang Hung, Tsung Fan Yin, Yi-Wei Chiu
  • Patent number: 11830926
    Abstract: A semiconductor device structure is provided. The semiconductor device structure includes a semiconductor substrate and a first metal gate stack and a second metal gate stack over the semiconductor substrate. The first metal gate stack and the second metal gate stack are electrically isolated from each other, and the first metal gate stack has a curved edge facing the second metal gate stack. The semiconductor device structure also includes a dielectric layer surrounding the first metal gate stack and the second metal gate stack.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: November 28, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yi-Hsuan Hsiao, Shu-Yuan Ku, Chih-Chang Hung, I-Wei Yang, Chih-Ming Sun
  • Publication number: 20230375862
    Abstract: A semiconductor device include: a first bus waveguide; a first silicon ring optically coupled to the first bus waveguide; a backup silicon ring optically coupled to the first bus waveguide; a first heater and a second heater configured to heat the first silicon ring and the backup silicon ring, respectively; and a first switch, where the first switch is configured to electrically couple the first silicon ring to a first radio frequency (RF) circuit when the first switch is at a first switching position, and is configured to electrically couple the backup silicon ring to the first RF circuit when the first switch is at a second switching position.
    Type: Application
    Filed: August 1, 2023
    Publication date: November 23, 2023
    Inventors: Weiwei Song, Stefan Rusu, Chan-Hong Chern, Chih-Chang Lin
  • Publication number: 20230378296
    Abstract: A semiconductor device includes a substrate and a gate structure over the substrate. The semiconductor device includes a source in the substrate on a first side of the gate structure. The semiconductor device further includes a drain in the substrate on a second side of the gate structure. The semiconductor device further includes a first well having a first dopant type, wherein the first well contacts at least two surfaces of the source. The semiconductor device further includes a second well having the first dopant type, wherein the second well contacts at least two surfaces of the drain. The semiconductor device further includes a deep well below the first well and below the second well, wherein the second well extends between the first well and the deep well. In some embodiments, the deep well has a second dopant type, and the second dopant type is opposite the first dopant type.
    Type: Application
    Filed: July 31, 2023
    Publication date: November 23, 2023
    Inventors: Chih-Chang CHENG, Fu-Yu CHU, Ruey-Hsin LIU
  • Publication number: 20230378090
    Abstract: In some embodiments, a semiconductor device is provided. The semiconductor device includes an isolation structure disposed in a semiconductor substrate, where an inner perimeter of the isolation structure demarcates a device region of the semiconductor substrate. A gate is disposed over the device region, where an outer perimeter of the gate is disposed within the inner perimeter of the isolation structure. A first source/drain region is disposed in the device region and on a first side of the gate. A second source/drain region is disposed in the device region and on a second side of the gate opposite the first side. A silicide blocking structure partially covers the gate, partially covers the first source/drain region, and partially covers the isolation structure, where a first sidewall of the silicide blocking structure is disposed between first opposite sidewalls of the gate.
    Type: Application
    Filed: August 2, 2023
    Publication date: November 23, 2023
    Inventors: Chih-Chang Cheng, Fu-Yu Chu, Ruey-Hsin Liu
  • Patent number: 11824575
    Abstract: A protective cover for a tablet computer includes a main body, a peripheral device and a protective cover signal transmission member. The main body includes a first supporting member and a second supporting member connected to each other and can be opened and closed relative to each other. The peripheral device is disposed on the first supporting member. The protective cover signal transmission member is disposed on the second supporting member and electrically connected with the peripheral device. The second supporting member supports the tablet computer. The tablet computer includes a computer signal transmission member. The protective cover signal transmission member is used to dock with the computer signal transmission member to perform signal transmission. One of the computer signal transmission member and the protective cover signal transmission member is an electrical block, and the other is an electrical guide rail. A portable electronic device is also provided.
    Type: Grant
    Filed: September 6, 2021
    Date of Patent: November 21, 2023
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Yu Chih Chang, Chin Lung Chan
  • Publication number: 20230366879
    Abstract: This invention relates to a surface coating for capture circulating rare cells, comprising a nonfouling composition to prevent the binding of non-specific cells and adsorption of serum components; a bioactive composition for binding the biological substance, such as circulating tumor cells; with or without a linker composition that binds the nonfouling and bioactive compositions. The invention also provide a surface coating for capture and purification of a biological substance, comprising a releasable composition to release the non-specific cells and other serum components; a bioactive composition for binding the biological substance, such as circulating tumor cells; with or without a linker composition that binds the releasable and bioactive compositions. The present invention also discloses a novel microfluidic chip, with specific patterned microstructures to create a flow disturbance and increase the capture rate of the biological substance.
    Type: Application
    Filed: April 27, 2023
    Publication date: November 16, 2023
    Inventors: Ying-Chih Chang, Han-Chung Wu, Po-Yuan Tseng, Jen-Chia Wu
  • Publication number: 20230368821
    Abstract: A memory device and a data approximation search method thereof are proposed. The memory device includes a plurality of selection switch pairs, a plurality of memory cell string pairs, a sense amplifier, and a page buffer. The selection switch pairs receive multiple search data pairs, respectively. The memory cell string pairs are respectively coupled to a global bit line through the selection switch pairs. Each of the memory cell string pairs determines whether to provide current on the global bit line according to stored data of a selected memory cell pair and each of the search data pairs. The sense amplifier obtains multiple search results according to the current on the global bit line and at least one reference currents respectively corresponding to at least one similarity. The page buffer records the search results and generates similarity information by accumulating the search results.
    Type: Application
    Filed: May 3, 2023
    Publication date: November 16, 2023
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Chih-Chang Hsieh, Hang-Ting Lue
  • Publication number: 20230370643
    Abstract: The present invention provides a control method of an electronic device, wherein the control method includes the steps of: obtaining a plurality of MPDUs, wherein the plurality of MPDUs corresponds to at least one I-frame and at least one P-frame; selectively duplicating the MPDUs corresponding to the I-frame to generate a plurality of duplicated MPDUs; and aggregating the plurality of MPDUs and the plurality of duplicated MPDUs in at least one PPDU.
    Type: Application
    Filed: April 26, 2023
    Publication date: November 16, 2023
    Applicant: MEDIATEK INC.
    Inventors: Ying-You Lin, Chiao-Chih Chang, He-Yuan Lin
  • Publication number: 20230368841
    Abstract: A ternary content addressable memory, disposed in a stacked memory device, includes a first memory cell string and a second memory cell string. The first memory cell string is coupled between a matching line and a first source line and receives multiple first word line signals. The first memory cell string has a first memory cell string selection switch controlled by a first search signal. The second memory cell string is coupled between the matching line and a second source line and receives multiple second word line signals. The second memory cell string has a second memory cell string selection switch controlled by a second search signal.
    Type: Application
    Filed: May 11, 2022
    Publication date: November 16, 2023
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Hang-Ting Lue, Teng-Hao Yeh, Chih-Chang Hsieh