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).
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Publication number: 20120322170Abstract: 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: ApplicationFiled: June 14, 2011Publication date: December 20, 2012Applicant: UNITED MICROELECTRONICS CORP.Inventors: Po-Fu CHOU, Chun-Ming Tsai
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Patent number: 8298838Abstract: 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: GrantFiled: February 24, 2010Date of Patent: October 30, 2012Assignee: United Microelectronics Corp.Inventors: Po-Fu Chou, Yu-Wen Liu
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Publication number: 20110204356Abstract: 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: ApplicationFiled: February 24, 2010Publication date: August 25, 2011Inventors: Po-Fu Chou, Yu-Wen Liu
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Patent number: 7735747Abstract: 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: GrantFiled: April 17, 2009Date of Patent: June 15, 2010Assignee: Industrial Technology Research InstituteInventors: Po-Fu Chou, Chi-Ming Huang, En-Wei Chang, Hung-Liang Chiang
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Publication number: 20100025873Abstract: 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: ApplicationFiled: October 29, 2008Publication date: February 4, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Po-Fu Chou, Pei Kan, Chun Jung Chen, Shih-Liang Yang, Chun Fu Leu, Shin-San Su
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Patent number: 7635094Abstract: 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: GrantFiled: August 18, 2006Date of Patent: December 22, 2009Assignee: Industrial Technology Research InstituteInventors: Po-Fu Chou, Chi-Ming Huang, En-Wei Chang, Hung-Liang Chiang
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Publication number: 20090206172Abstract: 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: ApplicationFiled: April 17, 2009Publication date: August 20, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Po-Fu Chou, Chi-Ming Huang, En-Wei Chang, Hung-Liang Chiang
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Patent number: 7540585Abstract: 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: GrantFiled: April 17, 2007Date of Patent: June 2, 2009Assignee: Industrial Technology Research InstituteInventors: Po-Fu Chou, Chun-Jung Chen, Ching-Chiu Liao
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Publication number: 20080161594Abstract: 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: ApplicationFiled: December 29, 2006Publication date: July 3, 2008Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: John Jianghann Lin, Chu Chun Hsueh, Pei Kan, Po-Fu Chou, En-Wei Chang, Wei-Liang Hsu
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Publication number: 20080149143Abstract: 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: ApplicationFiled: April 17, 2007Publication date: June 26, 2008Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Po-Fu Chou, Chun-Jung Chen, Ching-Chiu Liao
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Publication number: 20080143782Abstract: 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: ApplicationFiled: March 22, 2007Publication date: June 19, 2008Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Po-Fu Chou, Wei-Liang Hsu
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Publication number: 20080055375Abstract: 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: ApplicationFiled: January 22, 2007Publication date: March 6, 2008Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Shun-Chuan Lin, May-Chi Ho, Wei-Liang Hsu, Po-Fu Chou
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Publication number: 20080041532Abstract: 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: ApplicationFiled: November 22, 2006Publication date: February 21, 2008Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Po-Fu Chou, Pei Kan, En-Wei Chang, Shun-Chuan Lin, Wei-Liang Hsu
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Publication number: 20070152081Abstract: 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: ApplicationFiled: August 18, 2006Publication date: July 5, 2007Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Po-Fu Chou, Chi-Ming Huang, En-Wei Chang, Hung-Liang Chiang
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Publication number: 20070059370Abstract: 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: ApplicationFiled: September 15, 2005Publication date: March 15, 2007Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Po-Fu Chou, Pei Kan, Chun Jung Chen, Shih-Liang Yang, Chun Fu Leu, Shin-San Su
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Patent number: 7182423Abstract: 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: GrantFiled: December 8, 2003Date of Patent: February 27, 2007Assignees: 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
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Publication number: 20050122352Abstract: 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: ApplicationFiled: December 8, 2003Publication date: June 9, 2005Inventors: Shyh-Haur Su, Hong-Wen Chang, Yung-Chin Lee, Chu-Wen Chen, Po-Fu Chou, Chien-Tsung Wu, Chiu-Neng Chen