Patents by Inventor Wen-Chun Chang

Wen-Chun 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: 20250031458
    Abstract: A semiconductor structure is provided in the present invention, including a substrate, a deep N-well formed in the substrate, a first well formed in the deep N-well, a first gate formed on the first well, a first source and a first drain formed respectively at two sides of the first gate in the first well, a first doped region formed in the first well, and a metal interconnect electrically connected with the first source and the first doped region, wherein an area of the deep N-well multiplied by a first parameter is a first factor, an area of the first gate multiplied by a second parameter is a second factor, and an area of the metal interconnect divided by a sum of the first factor and the second factor is less than a specification value.
    Type: Application
    Filed: September 5, 2023
    Publication date: January 23, 2025
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Ming-Te Lin, Wen-Chun Chang, Sung-Nien Kuo, Tzu-Chun Chen, Kuan-Cheng Su
  • Publication number: 20240428867
    Abstract: A data storage device is adaptively adjusted according to the sensed temperature. The data storage device has a first clock generator and a second clock generator, respectively generating a first clock and a second clock, which are selected by a controller to operate a nonvolatile memory. In response to the sensed temperature not exceeding a first threshold temperature, the controller selects the first clock to operate the non-volatile memory. In response to the sensed temperature exceeding the first threshold temperature, the controller alternately selects the first clock and the second clock to operate the non-volatile memory.
    Type: Application
    Filed: June 18, 2024
    Publication date: December 26, 2024
    Inventor: Wen-Chun CHANG
  • Publication number: 20240168084
    Abstract: A semiconductor structure is provided. The semiconductor structure includes at least one metal gate structure and a device to be tested. The metal gate structure is disposed on a substrate. The device to be tested is disposed on the metal gate structure and electrically separated from the metal gate structure. The device to be tested is heated by a heat generated when the metal gate structure is applied with a voltage.
    Type: Application
    Filed: December 20, 2022
    Publication date: May 23, 2024
    Applicant: United Microelectronics Corp.
    Inventors: Jih-Shun Chiang, Wen-Chun Chang, Wen-Hsiung Ko, Sung-Nien Kuo, Kuan-Cheng Su
  • Publication number: 20240001186
    Abstract: A firefighting system includes a fluid unit, a sensing unit, and a control unit. The fluid unit is arranged adjacent to a lower part of a parking area. The sensing unit senses an ambient temperature of the parking area and generates a temperature information. The control unit is electrically connected with the sensing unit and the fluid unit. When the temperature information is greater than or equal to a first threshold temperature, the control unit controls the fluid unit to output a fluid to the lower part of the parking area.
    Type: Application
    Filed: July 1, 2022
    Publication date: January 4, 2024
    Inventor: Wen-Chun CHANG
  • Patent number: 8786362
    Abstract: A Schottky diode having a current leakage protection structure includes a Schottky diode unit, a first isolation portion and a second isolation portion. The Schottky diode unit is defined in a substrate and includes a metalized anode, an active region having dopants of first conductive type, a cathode and at least one isolation structure. The first isolation portion having dopants of second conductive type is formed between substrate and active region, and the first isolation portion includes a first well disposed beneath active region, and a first guard ring surrounding active region and connecting to the first well. The second isolation portion having dopants of first conductive type is formed between substrate and the first isolation portion, and the second isolation portion includes a second well disposed beneath the first well, and a second guard ring surrounding the first guard ring and connecting to the second well.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: July 22, 2014
    Assignee: United Microelectronics Corporation
    Inventors: An-Hung Lin, Wei-Shan Liao, Bo-Jui Huang, Hong-Ze Lin, Ting-Zhou Yan, Wen-Chun Chang
  • Patent number: 8739816
    Abstract: A fire hydrant box accommodates a hand held firefighting spray gun, a water inlet pipe with a rotary connector and a connection unit. A positioning member capable of bearing gravity is installed on the sidewall inside the box. A rotary member is movably connected with the positioning member, from which two supporting members extend to engage and support a rotary base of a firefighting hose assembly. The rotary base includes a rolling mechanism used to roll the fire hose thereon. Two rolling disks are provided to two sides of the rolling mechanism. One rolling disk is provided with a handle to roll and release the fire hose, and the other rolling disk is connected to the water inlet pipe. The connection unit can be easily rotated out of the accommodating space in order for the fireman to easily access the fire hose and the firefighting spray gun.
    Type: Grant
    Filed: January 8, 2012
    Date of Patent: June 3, 2014
    Assignee: Chuan Yen Tech Co., Ltd.
    Inventor: Wen-Chun Chang
  • Publication number: 20120192960
    Abstract: A fire hydrant box accommodates a hand held firefighting spay gun, a water inlet pipe with a rotary connector and a connection unit. A positioning member capable of bearing gravity is installed on the sidewall inside the box. A rotary member is movably connected with the positioning member, from which two supporting members extend to engage and support a rotary base of a firefighting hose assembly. The rotary base includes a rolling mechanism used to roll the fire hose thereon. Two rolling disks are provided to two sides of the rolling mechanism. One rolling disk is provided with a handle to roll and release the fire hose, and the other rolling disk is connected to the water inlet pipe. The connection unit can be easily rotated out of the accommodating space in order for the fireman to easily access the fire hose and the firefighting spray gun.
    Type: Application
    Filed: January 8, 2012
    Publication date: August 2, 2012
    Inventor: Wen-Chun CHANG
  • Patent number: 7759957
    Abstract: A method for fabricating a test structure, in which, a heating plate is formed on the wafer for heating a structure to be tested positioned above or adjacent to the heating plate. The heating plate produces heat by electrically connecting to a current. Thus, the heat provided by the heating plate and the electric input/output into/from the structure to be tested are controlled separately and not influenced each other.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: July 20, 2010
    Assignee: United Microelectronics Corp.
    Inventors: Wen-Hsiung Ko, Wen-Chun Chang, Kuan-Cheng Su
  • Patent number: 7649377
    Abstract: A wafer level test structure in which, a heating plate is formed on the wafer for heating a structure to be tested positioned above or adjacent to the heating plate. The heating plate produces heat by electrically connecting to a current. Thus, the heat provided by the heating plate and the electric input/output into/from the structure to be tested are controlled separately and not influenced each other.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: January 19, 2010
    Assignee: United Microelectronics Corp.
    Inventors: Wen-Hsiung Ko, Wen-Chun Chang, Kuan-Cheng Su
  • Publication number: 20090058455
    Abstract: The present invention discloses a wafer level test structure and a test method; in which, a heating plate is formed on the wafer for heating a structure to be tested positioned above or adjacent to the heating plate. The heating plate produces heat by electrically connecting to a current. Thus, the heat provided by the heating plate and the electric input/output into/from the structure to be tested are controlled separately and not influenced each other.
    Type: Application
    Filed: November 6, 2008
    Publication date: March 5, 2009
    Inventors: Wen-Hsiung Ko, Wen-Chun Chang, Kuan-Cheng Su
  • Publication number: 20090027074
    Abstract: The present invention discloses a wafer level test structure and a test method; in which, a heating plate is formed on the wafer for heating a structure to be tested positioned above or adjacent to the heating plate. The heating plate produces heat by electrically connecting to a current. Thus, the heat provided by the heating plate and the electric input/output into/from the structure to be tested are controlled separately and not influenced each other.
    Type: Application
    Filed: July 27, 2007
    Publication date: January 29, 2009
    Inventors: Wen-Hsiung Ko, Wen-Chun Chang, Kuan-Cheng Su
  • Publication number: 20080218495
    Abstract: A circuit capable of selectively operating in an inspecting mode or a driving mode for a display is formed in an integrated circuit and on a glass substrate. The circuit in the IC has a control circuit, a first input circuit, a second input circuit and a fourth input circuit. Each input circuit has a switch. Two additional switches are respectively connected between the first and the second input circuits, and between the second and the fourth input circuits. The glass substrate forms multiple connecting terminals corresponding to the input circuits. Two connecting terminals on the glass substrate are shorted. The control circuit outputs a signal to control all switches to form a configuration suitable for inspecting mode. When inspecting processes are completed, the control circuit changes the configuration for driving mode. The junction resistance of the display is precisely measured and areas in the IC are effectively used.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 11, 2008
    Applicant: WINTEK CORPORATION
    Inventors: Lin LIN, Yi-Chin LIN, Kun-Chang HO, Han-Lun LIN, Wen-Chun CHANG, Li-Sheng CHUANG
  • Publication number: 20060086831
    Abstract: The present invention provides a high-pressure water sprayer for fire extinguishment, including a body having a base and a fluid conduit connecting thereto, and at least two spray heads and fluid-guiding bars respectively corresponding thereto. The base is provided with at least two positioning slots for positioning the spray heads. Each of the positioning slots communicates with a main fluid passage within the fluid conduit via a branched fluid passage. A nozzle is formed at a lower end of the spray head, and an orifice is formed at an upper end of the spray head for the fluid-guiding bar to be disposed in a receiving space within the spray head. Then the receiving space communicates with the nozzle. A lower end of the fluid-guiding bar is provided with fluid-guiding grooves opposite to the nozzle. The spray heads are arranged in at least two different disposed angles. An appropriate spray angle can be obtained by adjusting the angle between the nozzle and the base.
    Type: Application
    Filed: May 16, 2005
    Publication date: April 27, 2006
    Applicant: Industrial Technology Research Institute
    Inventors: Rong-Feng Tsai, Yi-Liang Shu, Chen-Yang Lan, Mu-Long Lin, Wen-Chun Chang
  • Patent number: D1039653
    Type: Grant
    Filed: October 11, 2022
    Date of Patent: August 20, 2024
    Assignee: CHUAN YEN TECH CO., LTD.
    Inventor: Wen-Chun Chang