Patents by Inventor Chang Cheng

Chang Cheng 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: 11538811
    Abstract: A method of manufacturing a dynamic random access memory is provided and includes: forming a hard mask layer on a substrate; forming an opening in the hard mask layer and the substrate; forming a dielectric layer on a sidewall of the opening; forming a first part of a buried word line in a lower part of the opening; forming a hard mask layer on a top surface of the hindering layer, where the hindering layer has overhangs covering top corners of the hard mask layer; depositing a first barrier layer on the substrate through hindrance of the overhangs, where the first barrier layer covers the hindering layer and a top surface of the first part and exposes the dielectric layer on the sidewall of the opening; and forming a first conductive layer in the opening, where a sidewall of the first conductive layer contacts the dielectric layer.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: December 27, 2022
    Assignee: Winbond Electronics Corp.
    Inventors: Yi-Sheng Cheng, Chien-Chang Cheng
  • Patent number: 11532701
    Abstract: A semiconductor isolation structure includes a handle layer, a buried insulation layer, a semiconductor layer, a deep trench isolation structure, and a heavy doping region. The buried insulation layer is disposed on the handle layer. The semiconductor layer is disposed on the buried insulation layer and has a doping type. The semiconductor layer has a functional area in which doped regions of a semiconductor device are to be formed. The deep trench isolation structure penetrates the semiconductor layer and the buried insulation layer, and surrounds the functional area. The heavy doping region is formed in the semiconductor layer, is disposed between the functional area and the deep trench isolation structure, and is surrounded by the deep trench isolation structure. The heavy doping region has the doping type. A doping concentration of the heavy doping region is higher than that of the semiconductor layer.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: December 20, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hsin-Fu Lin, Tsung-Hao Yeh, Chien-Hung Liu, Shiang-Hung Huang, Chih-Wei Hung, Tung-Yang Lin, Ruey-Hsin Liu, Chih-Chang Cheng
  • Patent number: 11513083
    Abstract: A photolithography method includes dispensing a first liquid onto a first target layer formed over a first wafer through a nozzle at a first distance from the first target layer; capturing an image of the first liquid on the first target layer; patterning the first target layer after capturing the image of the first liquid; comparing the captured image of the first liquid to a first reference image to generate a first comparison result; responsive to the first comparison result, positioning the nozzle and a second wafer such that the nozzle is at a second distance from a second target layer on the second wafer; dispensing a second liquid onto the second target layer formed over the second wafer through the nozzle at the second distance from the second target layer; and patterning the second target layer after dispensing the second liquid.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: November 29, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chi-Hung Liao, Wei Chang Cheng
  • Publication number: 20220377934
    Abstract: A heat dissipation device includes a case, a first board, a second board, a curved supporting structure, and a fan. The first board is disposed in the case. The curved supporting structure has a curved slot which is located on an inner surface of the curved supporting structure, and the curved slot extends radially with respect to a center of the curved supporting structure. The second board is inserted in the curved slot, and the first board, the second board, and the curved supporting structure collectively form an accommodating space. The fan is fixed to the second board and disposed within the accommodating space.
    Type: Application
    Filed: June 10, 2021
    Publication date: November 24, 2022
    Inventors: Yin-Chang CHENG, Chi-Zen PENG, Chia-Chen CHEN
  • Publication number: 20220377444
    Abstract: A speaker includes a rubber cabinet, a driver, and a plastic connection ring. The rubber cabinet is fixed to a case of an electronic device. The rubber cabinet accommodates the driver, and the plastic connection ring is connected between the rubber cabinet and the driver. Moreover, the plastic connection ring surrounds the driver, and the rubber cabinet surrounds the plastic connection ring.
    Type: Application
    Filed: June 4, 2021
    Publication date: November 24, 2022
    Inventors: Mu-Heng TSAI, Yin-Chang CHENG, Chia-Chen CHEN, Chi-Zen PENG
  • Publication number: 20220367655
    Abstract: A method to form a transistor device with a recessed gate structure is provided. In one embodiment, a gate structure is formed overlying a device region and an isolation structure. The gate structure separates a device doping well along a first direction with a pair of recess regions disposed on opposite sides of the device region in a second direction perpendicular to the first direction. A pair of source/drain regions in is formed the device region on opposite sides of the gate structure. A sidewall spacer is formed extending along sidewalls of the gate structure, where a top surface of the sidewall spacer is substantially flush with the top surface of the gate structure. A resistive protection layer is then formed on the sidewall spacer and covering the pair of recess regions.
    Type: Application
    Filed: July 27, 2022
    Publication date: November 17, 2022
    Inventors: Chen-Liang Chu, Chien-Chih Chou, Chih-Chang Cheng, Yi-Huan Chen, Kong-Beng Thei, Ming-Ta Lei, Ruey-Hsin Liu, Ta-Yuan Kung
  • Publication number: 20220358993
    Abstract: A memory structure includes a first memory array having bit lines; a second memory array having bit lines; a first sense amplifier connected to a first bit line of the first memory array and a first bit line of the second memory array; and a second sense amplifier connected to a second bit line of the first memory array and a second bit line of the second memory array. The second bit line of the first memory array is adjacent to the first bit line of the first memory array, and the second bit line of the second memory array is adjacent to the first bit line of the second memory array.
    Type: Application
    Filed: December 8, 2021
    Publication date: November 10, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chieh Lee, Yi-Ching Liu, Chia-En Huang, Wen-Chang Cheng, Jonathan Tsung-Yung Chang
  • Publication number: 20220322808
    Abstract: Nail gel curing devices emitting ultraviolet light, as well as methods of their making and use are disclosed. The devices are useful for curing, inter alia, acrylic compositions, more particularly, acrylic nail gel compositions, and typically employ ultraviolet and/or visible light emitting diodes (“LED”) to cure such ultraviolet and/or visible light curable nail gel resins.
    Type: Application
    Filed: May 2, 2022
    Publication date: October 13, 2022
    Inventors: Kuo-Chang CHENG, Danny Lee HAILE
  • Patent number: 11463805
    Abstract: A speaker includes a rubber cabinet, a driver, and a metal connection ring. The rubber cabinet is fixed to a case of an electronic device. The rubber cabinet accommodates the driver, and the metal connection ring is connected between the rubber cabinet and the driver. Moreover, the metal connection ring surrounds the driver, and the rubber cabinet surrounds the metal connection ring.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: October 4, 2022
    Assignees: Inventec (Pudong) Technology Corporation, INVENTEC CORPORATION
    Inventors: Yin-Chang Cheng, Mu-Heng Tsai, Chia-Chen Chen, Chi-Zen Peng
  • Publication number: 20220293723
    Abstract: A semiconductor isolation structure includes a handle layer, a buried insulation layer, a semiconductor layer, a deep trench isolation structure, and a heavy doping region. The buried insulation layer is disposed on the handle layer. The semiconductor layer is disposed on the buried insulation layer and has a doping type. The semiconductor layer has a functional area in which doped regions of a semiconductor device are to be formed. The deep trench isolation structure penetrates the semiconductor layer and the buried insulation layer, and surrounds the functional area. The heavy doping region is formed in the semiconductor layer, is disposed between the functional area and the deep trench isolation structure, and is surrounded by the deep trench isolation structure. The heavy doping region has the doping type. A doping concentration of the heavy doping region is higher than that of the semiconductor layer.
    Type: Application
    Filed: March 11, 2021
    Publication date: September 15, 2022
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hsin-Fu LIN, Tsung-Hao YEH, Chien-Hung LIU, Shiang-Hung HUANG, Chih-Wei HUNG, Tung-Yang LIN, Ruey-Hsin LIU, Chih-Chang CHENG
  • Patent number: 11444169
    Abstract: A transistor device with a recessed gate structure is provided. In some embodiments, the transistor device comprises a semiconductor substrate comprising a device region surrounded by an isolation structure and a pair of source/drain regions disposed in the device region and laterally spaced apart one from another in a first direction. A gate structure overlies the device region and the isolation structure and arranged between the pair of source/drain regions. The gate structure comprises a pair of recess regions disposed on opposite sides of the device region in a second direction perpendicular to the first direction. A channel region is disposed in the device region underneath the gate structure. The channel region has a channel width extending in the second direction from one of the recess regions to the other one of the recess regions.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: September 13, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Liang Chu, Chien-Chih Chou, Chih-Chang Cheng, Yi-Huan Chen, Kong-Beng Thei, Ming-Ta Lei, Ruey-Hsin Liu, Ta-Yuan Kung
  • Publication number: 20220271042
    Abstract: A method of manufacturing a dynamic random access memory is provided and includes: forming a hard mask layer on a substrate; forming an opening in the hard mask layer and the substrate; forming a dielectric layer on a sidewall of the opening; forming a first part of a buried word line in a lower part of the opening; forming a hard mask layer on a top surface of the hindering layer, where the hindering layer has overhangs covering top corners of the hard mask layer; depositing a first barrier layer on the substrate through hindrance of the overhangs, where the first barrier layer covers the hindering layer and a top surface of the first part and exposes the dielectric layer on the sidewall of the opening; and forming a first conductive layer in the opening, where a sidewall of the first conductive layer contacts the dielectric layer.
    Type: Application
    Filed: August 12, 2021
    Publication date: August 25, 2022
    Applicant: Winbond Electronics Corp.
    Inventors: Yi-Sheng Cheng, Chien-Chang Cheng
  • Patent number: 11405270
    Abstract: The present invention provides a mobile device connection device and a mobile device remote plug-and-play system. The mobile device connection device includes a USB port connected to a mobile device and a communication module for wireless communication with a WiFi access point (AP), and the mobile device connection device performs wireless communication through the WiFi AP. Instant plugging and unplugging can be achieved, the distance limitation can also be overcome, and the user experience is good.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: August 2, 2022
    Assignee: Actions Microelectronics Co., Ltd.
    Inventor: Jian-Chang Cheng
  • Patent number: 11392531
    Abstract: Example of systems with rotatable port units are described. In an example, a system includes a control unit, a first port unit with a first set of ports coupled to the control unit, and a second port unit with a second set of ports coupled to the control unit. The second port unit is mounted on the first port unit and is rotatable with respect to the first port unit. The control unit is to enable a sub-set of ports from the second set of ports and the first set of ports based on a rotational position of the second port unit with respect to the first port unit.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: July 19, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ming-Fong Chou, Chang-Cheng Hsieh, Heng-Chang Hsu
  • Patent number: 11373983
    Abstract: A novel 3D package configuration is provided by stacking a plurality of semiconductor package units or a folded flexible circuit board structure on a lead frame and electrically connected therewith based on the foldable characteristics of the flexible circuit board, and the high temperature resistance of the flexible circuit board which is suitable for insulating layer process, metal layer process, photolithography process, etching and development process, to make conventional semiconductor dies of various functions be bonded on one die and/or two side of a flexible circuit board and electrically connected therewith in advance.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: June 28, 2022
    Assignee: CCS Technology Corporation
    Inventors: Tung-Po Sung, Chang-Cheng Lo
  • Publication number: 20220199583
    Abstract: A novel 3D package configuration is provided by stacking a plurality of semiconductor package units or a folded flexible circuit board structure on a package substrate and electrically connected therewith based on the foldable characteristics of the flexible circuit board, and the high temperature resistance of the flexible circuit board which is suitable for insulating layer process, metal layer process, photolithography process, etching and development process, to make conventional semiconductor dies of various functions be bonded on one die and/or two side of a flexible circuit board and electrically connected therewith in advance.
    Type: Application
    Filed: February 23, 2022
    Publication date: June 23, 2022
    Applicant: CCS Technology Corporation
    Inventors: Tung-Po Sung, Chang-Cheng Lo
  • Publication number: 20220199579
    Abstract: A novel 3D package configuration is provided by stacking a plurality of semiconductor package units or a folded flexible circuit board structure on a lead frame and electrically connected therewith based on the foldable characteristics of the flexible circuit board, and the high temperature resistance of the flexible circuit board which is suitable for insulating layer process, metal layer process, photolithography process, etching and development process, to make conventional semiconductor dies of various functions be bonded on one die and/or two side of a flexible circuit board and electrically connected therewith in advance.
    Type: Application
    Filed: January 26, 2021
    Publication date: June 23, 2022
    Inventors: Tung-Po Sung, Chang-Cheng Lo
  • Publication number: 20220199497
    Abstract: A novel 3D package configuration is provided by stacking a folded flexible circuit board structure on a package substrate and electrically connected therewith based on the foldable characteristics of the flexible circuit board, and the high temperature resistance of the flexible circuit board which is suitable for insulating layer process, metal layer process, photolithography process, etching and development process, to make conventional semiconductor dies of various functions be bonded on one die and/or two side of a flexible circuit board and electrically connected therewith in advance.
    Type: Application
    Filed: February 23, 2022
    Publication date: June 23, 2022
    Applicant: CCS Technology Corporation
    Inventors: Tung-Po Sung, Chang-Cheng Lo
  • Publication number: 20220199498
    Abstract: A novel 3D package configuration is provided by stacking a folded flexible circuit board structure on a package substrate and electrically connected therewith based on the foldable characteristics of the flexible circuit board, and the high temperature resistance of the flexible circuit board which is suitable for insulating layer process, metal layer process, photolithography process, etching and development process, to make conventional semiconductor dies of various functions be bonded on one die and/or two side of a flexible circuit board and electrically connected therewith in advance.
    Type: Application
    Filed: February 23, 2022
    Publication date: June 23, 2022
    Applicant: CCS Technology Corporation
    Inventors: Tung-Po Sung, Chang-Cheng Lo
  • Patent number: 11357375
    Abstract: A dust collecting device with an extendible and flexible air tube including a housing, a cover, an air tube, a dust collecting head, a filter material and a gas guiding device. The cover is detachably disposed on the housing and has an accommodating groove. The air tube is positioned in the accommodating groove and extendible and flexible, the air tube is capable of being extended to outside the accommodating groove and retracted to be accommodated in the accommodating groove, and a bending angle and an extension direction of the air tube is changeable by flexibility. The dust collecting head is disposed at the air tube, and is positioned in the accommodating groove when the air tube is shortened to be accommodated in the accommodating groove. The filter material is disposed inside the housing and close to the cover. The gas guiding device is disposed inside the housing.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: June 14, 2022
    Assignee: RIGHTNOW CO., LTD
    Inventor: Kuo-Chang Cheng