Patents by Inventor Chu-Fu Chen

Chu-Fu Chen 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: 20170277816
    Abstract: A method of verifying and analyzing energy efficiency ratio (EER) of an HVAC chiller unit in accordance with the present invention provides verification and analysis of HVAC chiller units to build daily steady-state data and non-steady state data out of field dynamic EER values and provides analysis of the steady-state data, based on selected integer temperatures and tenfold load factors in the annual scale that are subject to the dynamic changes in temperatures and load factors along with chiller seasonal operation to build monthly or seasonal running EER trend, and to determine-management index values for a period of time and to determine whether energy consumption meets specified criteria, as a basis of comparison of calculations, and resulting amplitude ratios between before and after the energy-saving improvement and of totally saved energy.
    Type: Application
    Filed: March 22, 2017
    Publication date: September 28, 2017
    Inventor: Chu-Fu Chen
  • Patent number: 9658278
    Abstract: A semiconductor device comprises a first layer, a second layer configured to overlap with the first layer at a plurality of positions, a plurality of first layer contacts configured to be selectively activated to test the first layer for a first layer leakage current, and a plurality of second layer contacts configured to be selectively activated to test the second layer for a second layer leakage current. The first layer contacts are arranged on the first layer on a first side and a second side of the plurality of positions at which the second layer overlaps with the first layer. The second layer contacts are arranged on the second layer on a third side and a fourth side of the plurality of positions at which the second layer overlaps with the first layer. A determined first layer leakage current or second layer leakage current is indicative of the presence of a crystal defect in the semiconductor device.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: May 23, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chun Hao Liao, Chu Fu Chen, Po-Ju Chiu, Jun Yean Chiou, Chao-Jen Cheng
  • Publication number: 20160013293
    Abstract: A device includes a substrate, a gate dielectric over the substrate, and a gate electrode over the gate dielectric. A drain region and a source region are disposed on opposite sides of the gate electrode. Insulation regions are disposed in the substrate, wherein edges of the insulation regions are in contact with edges of the drain region and the source region. A dielectric mask includes a portion overlapping a first interface between the drain region and an adjoining portion of the insulation regions. A drain silicide region is disposed over the drain region, wherein an edge of the silicide region is substantially aligned to an edge of the first portion of the dielectric mask.
    Type: Application
    Filed: September 22, 2015
    Publication date: January 14, 2016
    Inventors: Chu-Fu Chen, Chia-Chung Chen, Chi-Feng Huang, Victor Chiang Liang
  • Patent number: 9236273
    Abstract: An integrated circuit device includes a lightly doped region such as the base region of a bipolar junction transistor within a semiconductor body. The device further includes a UV barrier layer formed over the lightly doped region. The UV barrier protects the lightly doped region from damage that can occur during high energy plasma etching or UV irradiation to erase EPROM.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: January 12, 2016
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chun Hao Liao, Chu Fu Chen, Chin-Lung Chen, Victor Chiang Liang, Mingo Liu
  • Patent number: 9159802
    Abstract: A device includes a substrate, a gate dielectric over the substrate, and a gate electrode over the gate dielectric. A drain region and a source region are disposed on opposite sides of the gate electrode. Insulation regions are disposed in the substrate, wherein edges of the insulation regions are in contact with edges of the drain region and the source region. A dielectric mask includes a portion overlapping a first interface between the drain region and an adjoining portion of the insulation regions. A drain silicide region is disposed over the drain region, wherein an edge of the silicide region is substantially aligned to an edge of the first portion of the dielectric mask.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: October 13, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chu-Fu Chen, Chia-Chung Chen, Chi-Feng Huang, Victor Chiang Liang
  • Publication number: 20150212146
    Abstract: A semiconductor device comprises a first layer, a second layer configured to overlap with the first layer at a plurality of positions, a plurality of first layer contacts configured to be selectively activated to test the first layer for a first layer leakage current, and a plurality of second layer contacts configured to be selectively activated to test the second layer for a second layer leakage current. The first layer contacts are arranged on the first layer on a first side and a second side of the plurality of positions at which the second layer overlaps with the first layer. The second layer contacts are arranged on the second layer on a third side and a fourth side of the plurality of positions at which the second layer overlaps with the first layer. A determined first layer leakage current or second layer leakage current is indicative of the presence of a crystal defect in the semiconductor device.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 30, 2015
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chun Hao LIAO, Chu Fu CHEN, Po-Ju CHIU, Jun Yean CHIOU, Chao-Jen CHENG
  • Patent number: 9086450
    Abstract: A capacitor measurement circuit for measuring a capacitance of a test capacitor includes a first transistor with a first source-drain path coupled between a first capacitor plate of the test capacitor and a ground; a second transistor with a second source-drain path coupled between a second capacitor plate of the test capacitor and the ground; and a current-measuring device configured to measure a first charging current and a second charging current of the test capacitors. The first and the second charging currents flow to the test capacitor in opposite directions.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: July 21, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Min-Tar Liu, Chih-Chiang Chang, Chu-Fu Chen, Ping-Hsiang Huang
  • Publication number: 20150014827
    Abstract: An integrated circuit device includes a lightly doped region such as the base region of a bipolar junction transistor within a semiconductor body. The device further includes a UV barrier layer formed over the lightly doped region. The UV barrier protects the lightly doped region from damage that can occur during high energy plasma etching or UV irradiation to erase EPROM.
    Type: Application
    Filed: July 9, 2013
    Publication date: January 15, 2015
    Inventors: Chun Hao Liao, Chu Fu Chen, Chin-Lung Chen, Victor Chiang Liang, Mingo Liu
  • Patent number: 8779796
    Abstract: A method of measuring a parameter of a device in a circuit includes providing a device under test (DUT). The DUT includes a metal oxide semiconductor (MOS) transistor having a gate, a source, and a drain coupled to a first voltage supply node. The method further includes coupling a constant current source to the source of the transistor, coupling an operational amplifier to the transistor, and measuring a parameter of the transistor.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: July 15, 2014
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tseng Chin Luo, Chu Fu Chen, Min-Tar Liu, Yuan-Yao Chang
  • Publication number: 20130299919
    Abstract: A device includes a substrate, a gate dielectric over the substrate, and a gate electrode over the gate dielectric. A drain region and a source region are disposed on opposite sides of the gate electrode. Insulation regions are disposed in the substrate, wherein edges of the insulation regions are in contact with edges of the drain region and the source region. A dielectric mask includes a portion overlapping a first interface between the drain region and an adjoining portion of the insulation regions. A drain silicide region is disposed over the drain region, wherein an edge of the silicide region is substantially aligned to an edge of the first portion of the dielectric mask.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 14, 2013
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chu-Fu Chen, Chia-Chung Chen, Chi-Feng Huang, Victor Chiang Liang
  • Patent number: 8418098
    Abstract: A verification system for verifying an integrated circuit design is provided. The verification system includes a functional block finding module configured to identify potential sensitive circuits in the integrated circuit design; and a search module. The search module is configured to find sensitive circuits from the potential sensitive circuits; and verify the sensitive circuits.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: April 9, 2013
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chi-Heng Huang, Gary Lin, Chu-Fu Chen, Yi-Kan Cheng, Fu-Lung Hsueh
  • Publication number: 20120084033
    Abstract: A capacitor measurement circuit for measuring a capacitance of a test capacitor includes a first transistor with a first source-drain path coupled between a first capacitor plate of the test capacitor and a ground; a second transistor with a second source-drain path coupled between a second capacitor plate of the test capacitor and the ground; and a current-measuring device configured to measure a first charging current and a second charging current of the test capacitors. The first and the second charging currents flow to the test capacitor in opposite directions.
    Type: Application
    Filed: October 4, 2010
    Publication date: April 5, 2012
    Inventors: Min-Tar Liu, Chih-Chiang Chang, Chu-Fu Chen, Ping-Hsiang Huang
  • Publication number: 20120074981
    Abstract: A method of measuring a parameter of a device in a circuit includes providing a device under test (DUT). The DUT includes a metal oxide semiconductor (MOS) transistor having a gate, a source, and a drain coupled to a first voltage supply node. The method further includes coupling a constant current source to the source of the transistor, coupling an operational amplifier to the transistor, and measuring a parameter of the transistor.
    Type: Application
    Filed: September 29, 2010
    Publication date: March 29, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Tseng Chin Luo, Chu Fu CHEN, Min-Tar LIU, Yuan-Yao CHANG
  • Publication number: 20090172617
    Abstract: A verification system for verifying an integrated circuit design is provided. The verification system includes a functional block finding module configured to identify potential sensitive circuits in the integrated circuit design; and a search module. The search module is configured to find sensitive circuits from the potential sensitive circuits; and verify the sensitive circuits.
    Type: Application
    Filed: March 24, 2008
    Publication date: July 2, 2009
    Inventors: Chi-Heng Huang, Gary Lin, Chu-Fu Chen, Yi-Kan Cheng, Fu-Lung Hsueh