Patents by Inventor Po-Fu Chou

Po-Fu Chou 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: 20120322170
    Abstract: A pinhole inspection method of an insulator layer, wherein the pinhole inspection method comprises steps as following: A dry etching process is firstly performed to remove a contiguous layer adjacent to the insulator layer. Subsequently an etching endpoint is determined and the dry etching process is then stopped in accordance with a second electron energy variation triggered by the dry etching process. Afterward, a cross-sectional morphology or topography of the insulator layer is inspected.
    Type: Application
    Filed: June 14, 2011
    Publication date: December 20, 2012
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Po-Fu CHOU, Chun-Ming Tsai
  • Patent number: 8298838
    Abstract: A method for staining a sample includes the following steps. A test device is provided. The test device is sampled to obtain a sample. The sample includes a substrate, an active area disposed within the substrate and having a first doped substrate region and a second doped substrate region, at least one gate disposed between the first doped substrate region and the second doped substrate region, and an exposed shallow trench isolation embedded in the substrate and surrounding the active area. A first staining procedure is then carried out to selectively remove the shallow trench isolation to form a first void and to entirely expose the active area. A second staining procedure is subsequently carried out to selectively stain the first doped substrate region and the second doped substrate region to form a second void.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: October 30, 2012
    Assignee: United Microelectronics Corp.
    Inventors: Po-Fu Chou, Yu-Wen Liu
  • Publication number: 20110204356
    Abstract: A method for staining a sample includes the following steps. A test device is provided. The test device is sampled to obtain a sample. The sample includes a substrate, an active area disposed within the substrate and having a first doped substrate region and a second doped substrate region, at least one gate disposed between the first doped substrate region and the second doped substrate region, and an exposed shallow trench isolation embedded in the substrate and surrounding the active area. A first staining procedure is then carried out to selectively remove the shallow trench isolation to form a first void and to entirely expose the active area. A second staining procedure is subsequently carried out to selectively stain the first doped substrate region and the second doped substrate region to form a second void.
    Type: Application
    Filed: February 24, 2010
    Publication date: August 25, 2011
    Inventors: Po-Fu Chou, Yu-Wen Liu
  • Patent number: 7735747
    Abstract: A micro-spray system resonance frequency modulation method and device designed to minimize resonance frequency drift during atomization involves using a resonance frequency modulation unit for modulating resonance frequency and nodes, controlling and calibrating resonance frequency, and performing real-time measurement and correction to prevent operating frequency from drifting beyond a preferred operating frequency range, with a view to increasing spray flow and spray area, minimizing effects of ambient factors, and overcoming drawbacks of prior art.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: June 15, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Po-Fu Chou, Chi-Ming Huang, En-Wei Chang, Hung-Liang Chiang
  • Publication number: 20100025873
    Abstract: An apparatus and method for forming nanoparticles employs an inkjet dispenser and a nanoparticle formation device. The inkjet dispenser includes at least one orifice. A liquid solution with a substance to be transformed into nanoscale is received in the inkjet dispenser, and is dispensed from the at least one orifice to generate a plurality of microdroplets. The nanoparticle formation device is disposed to receive the microdroplets dispensed by the inkjet dispenser and form the nanoparticles therein.
    Type: Application
    Filed: October 29, 2008
    Publication date: February 4, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Po-Fu Chou, Pei Kan, Chun Jung Chen, Shih-Liang Yang, Chun Fu Leu, Shin-San Su
  • Patent number: 7635094
    Abstract: A micro-spray system resonance frequency modulation method and device designed to minimize resonance frequency drift during atomization involves using a resonance frequency modulation unit for modulating resonance frequency and nodes, controlling and calibrating resonance frequency, and performing real-time measurement and correction to prevent operating frequency from drifting beyond a preferred operating frequency range, with a view to increasing spray flow and spray area, minimizing effects of ambient factors, and overcoming drawbacks of prior art.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: December 22, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Po-Fu Chou, Chi-Ming Huang, En-Wei Chang, Hung-Liang Chiang
  • Publication number: 20090206172
    Abstract: A micro-spray system resonance frequency modulation method and device designed to minimize resonance frequency drift during atomization involves using a resonance frequency modulation unit for modulating resonance frequency and nodes, controlling and calibrating resonance frequency, and performing real-time measurement and correction to prevent operating frequency from drifting beyond a preferred operating frequency range, with a view to increasing spray flow and spray area, minimizing effects of ambient factors, and overcoming drawbacks of prior art.
    Type: Application
    Filed: April 17, 2009
    Publication date: August 20, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Po-Fu Chou, Chi-Ming Huang, En-Wei Chang, Hung-Liang Chiang
  • Patent number: 7540585
    Abstract: A residue removal device includes an object, a sink, and a conveying device. The object includes a contact surface. Residue exists on the contact surface. A solution is contained in the sink. The sink is disposed below the contact surface. The solution corresponds to the contact surface. The conveying device drives the relative motion between the object and the sink. When the residues on the contact surface are contacted by the solution and relative motion is generated between the residues of the contact surface and the solution, the residues are removed by the solution.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: June 2, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Po-Fu Chou, Chun-Jung Chen, Ching-Chiu Liao
  • Publication number: 20080161594
    Abstract: A method employs the addition of additive to increase the solubility of active ingredients in solution. Furthermore, a nanoparticle apparatus that uses inkjet dispenser is utilized to fabricate nanoparticles. The method comprises: (a) mixing a fenofibrate substance, an organic solvent and a solubility enhancing additive to form a saturated solution; and (b) spray-drying the saturated solution to form the nanoparticles containing fenofibrate, wherein the solubility enhancing additive comprises a surfactant or an excipient.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: John Jianghann Lin, Chu Chun Hsueh, Pei Kan, Po-Fu Chou, En-Wei Chang, Wei-Liang Hsu
  • Publication number: 20080149143
    Abstract: A residue removal device includes an object, a sink, and a conveying device. The object includes a contact surface. Residue exists on the contact surface. A solution is contained in the sink. The sink is disposed below the contact surface. The solution corresponds to the contact surface. The conveying device drives the relative motion between the object and the sink. When the residues on the contact surface are contacted by the solution and relative motion is generated between the residues of the contact surface and the solution, the residues are removed by the solution.
    Type: Application
    Filed: April 17, 2007
    Publication date: June 26, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Po-Fu Chou, Chun-Jung Chen, Ching-Chiu Liao
  • Publication number: 20080143782
    Abstract: An inkjet dispensing apparatus. The inkjet dispensing apparatus includes a cartridge body, a plurality of dispensing chips, a storage device, and at least a through hole. The dispensing chips are disposed on the cartridge body. The storage device comprises a plurality of storage sinks. The storage device is disposed above the cartridge body. Each storage sink is connected to each dispensing chip. The through hole penetrates the cartridge body.
    Type: Application
    Filed: March 22, 2007
    Publication date: June 19, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Po-Fu Chou, Wei-Liang Hsu
  • Publication number: 20080055375
    Abstract: An inkjet comprises a chamber and a pressure control unit. The pressure control unit is connected to the chamber. The pressure control unit comprises an inlet, an outlet, an elastic mechanism, and seal block. The seal block is connected to the elastic mechanism, which moves the seal block between a first position and a second position via an elastic force. When the seal block is in the first position the seal block seals the inlet. When the seal block is in the second position, airflow passes the inlet, the pressure control unit, and the outlet into the chamber.
    Type: Application
    Filed: January 22, 2007
    Publication date: March 6, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Shun-Chuan Lin, May-Chi Ho, Wei-Liang Hsu, Po-Fu Chou
  • Publication number: 20080041532
    Abstract: A system for fabricating nanoparticles that includes a micro droplet sprayer, a device, and a drying chamber is disclosed. The micro droplet sprayer, such as an inkjet sprayer, composed of a tank, a channel, an actuator, and orifices is utilized for generation of micro droplets. The device is employed to provide the micro droplet sprayer with energy, thus, forcing droplets out. The droplets are dried in the drying chamber, obtaining nanoparticles.
    Type: Application
    Filed: November 22, 2006
    Publication date: February 21, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Po-Fu Chou, Pei Kan, En-Wei Chang, Shun-Chuan Lin, Wei-Liang Hsu
  • Publication number: 20070152081
    Abstract: A micro-spray system resonance frequency modulation method and device designed to minimize resonance frequency drift during atomization involves using a resonance frequency modulation unit for modulating resonance frequency and nodes, controlling and calibrating resonance frequency, and performing real-time measurement and correction to prevent operating frequency from drifting beyond a preferred operating frequency range, with a view to increasing spray flow and spray area, minimizing effects of ambient factors, and overcoming drawbacks of prior art.
    Type: Application
    Filed: August 18, 2006
    Publication date: July 5, 2007
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Po-Fu Chou, Chi-Ming Huang, En-Wei Chang, Hung-Liang Chiang
  • Publication number: 20070059370
    Abstract: An apparatus and method for forming nanoparticles employs an inkjet dispenser and a nanoparticle formation device. The inkjet dispenser includes at least one orifice. A liquid solution with a substance to be transformed into nanoscale is received in the inkjet dispenser, and is dispensed from the at least one orifice to generate a plurality of microdroplets. The nanoparticle formation device is disposed to receive the microdroplets dispensed by the inkjet dispenser and form the nanoparticles therein.
    Type: Application
    Filed: September 15, 2005
    Publication date: March 15, 2007
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Po-Fu Chou, Pei Kan, Chun Jung Chen, Shih-Liang Yang, Chun Fu Leu, Shin-San Su
  • Patent number: 7182423
    Abstract: A leakage detection apparatus and method for a multi-channel inkjet cartridge. The leakage detection apparatus includes a plurality of electrodes and a controller. Each of the electrodes is disposed in one of channels of the inkjet cartridge respectively, and contacts a reagent in the corresponding channel. The controller is coupled to the electrodes, and detects leakage between channels.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: February 27, 2007
    Assignees: Industrial Technology Research Institute, Phalanx Biotech Group, Inc.
    Inventors: Shyh-Haur Su, Hong-Wen Chang, Yung-Chin Lee, Chu-Wen Chen, Po-Fu Chou, Chien-Tsung Wu, Chiu-Neng Chen
  • Publication number: 20050122352
    Abstract: A leakage detection apparatus and method for a multi-channel inkjet cartridge. The leakage detection apparatus includes a plurality of electrodes and a controller. Each of the electrodes is disposed in one of channels of the inkjet cartridge respectively, and contacts a reagent in the corresponding channel. The controller is coupled to the electrodes, and detects leakage between channels.
    Type: Application
    Filed: December 8, 2003
    Publication date: June 9, 2005
    Inventors: Shyh-Haur Su, Hong-Wen Chang, Yung-Chin Lee, Chu-Wen Chen, Po-Fu Chou, Chien-Tsung Wu, Chiu-Neng Chen