Patents by Inventor Cheng-Hung Yu

Cheng-Hung Yu 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: 20110023297
    Abstract: A method for fabricating a double-sided or multi-layer printed circuit board (PCB) by ink jet printing that includes providing a substrate, forming a first self-assembly membrane (SAM) on at least one side of the substrate, forming a non-adhesive membrane on the first SAM, forming at least one microhole in the substrate, forming a second SAM on a surface of the microhole, providing catalyst particles on the at least one side of the substrate and on the surface of the microhole, and forming a catalyst circuit pattern on the substrate.
    Type: Application
    Filed: October 12, 2010
    Publication date: February 3, 2011
    Inventors: Ming-Huan Yang, Chung-Wei Wang, Chia-Chi Wu, Chao-Kai Cheng, Tzyy-Jang Tseng, Chang-Ming Lee, Cheng-Po Yu, Cheng-Hung Yu
  • Patent number: 7834274
    Abstract: A method for fabricating a double-sided or multi-layer printed circuit board (PCB) by ink-jet printing that includes providing a substrate, forming a first self-assembly membrane (SAM) on at least one side of the substrate, forming a non-adhesive membrane on the first SAM, forming at least one microhole in the substrate, forming a second SAM on a surface of the microhole, providing catalyst particles on the at least one side of the substrate and on the surface of the microhole, and forming a catalyst circuit pattern on the substrate.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: November 16, 2010
    Assignees: Industrial Technology Research Institute, Unimicron Technology Corp.
    Inventors: Ming-Huan Yang, Chung-Wei Wang, Chia-Chi Wu, Chao-Kai Cheng, Tzyy-Jang Tseng, Chang-Ming Lee, Cheng-Po Yu, Cheng-Hung Yu
  • Patent number: 7723150
    Abstract: A method for fabricating an image sensor, which includes the following steps, is provided. A semiconductor substrate including a sensor array, a pad and a passivation layer is provided, and the passivation layer covers the sensor array and the pad. An opening, which comprises tapered sidewalls not perpendicular to a bared surface of the pad, is formed in the semiconductor substrate to expose the pad. An under layer is formed on the semiconductor substrate, and covers the pad and the passivation layer. A color filter array is formed on the under layer and over the corresponding sensor array. A planar layer is formed on the color filter array. A portion of the under layer is removed to expose the pad. A plurality of U-lenses is formed on the planar layer.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: May 25, 2010
    Assignee: United Microelectronics Corp.
    Inventor: Cheng-Hung Yu
  • Publication number: 20100089627
    Abstract: A multilayer three-dimensional circuit structure and a manufacturing method thereof are provided in the present invention. The manufacturing method includes following steps. First, a three-dimensional insulating structure is provided. A first three-dimensional circuit structure is then formed on a surface of the three-dimensional insulating structure. Next, an insulating layer covering the first three-dimensional circuit structure is formed. Thereafter, a second three-dimensional circuit structure is formed on the insulating layer. Subsequently, at least a conductive via penetrating the insulating layer is formed for electrically connecting the second three-dimensional circuit structure and the first three-dimensional circuit structure.
    Type: Application
    Filed: December 11, 2008
    Publication date: April 15, 2010
    Applicant: UNIMICRON TECHNOLOGY CORP.
    Inventors: Han-Pei Huang, Cheng-Hung Yu
  • Publication number: 20100000086
    Abstract: The present invention provides a method of making a molded interconnect device. The method includes the steps of: injection molding a plastic body having thereon at least one patterned circuit trench structure; and filling a conductive material into the patterned circuit trench structure thereby forming a circuit trace on the plastic body.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 7, 2010
    Inventors: Cheng-Hung Yu, Chi-En Li
  • Publication number: 20090321862
    Abstract: A method for fabricating an image sensor, which includes the following steps, is provided. A semiconductor substrate including a sensor array, a pad and a passivation layer is provided, and the passivation layer covers the sensor array and the pad. An opening, which comprises tapered sidewalls not perpendicular to a bared surface of the pad, is formed in the semiconductor substrate to expose the pad. An under layer is formed on the semiconductor substrate, and covers the pad and the passivation layer. A color filter array is formed on the under layer and over the corresponding sensor array. A planar layer is formed on the color filter array. A portion of the under layer is removed to expose the pad. A plurality of U-lenses is formed on the planar layer.
    Type: Application
    Filed: June 27, 2008
    Publication date: December 31, 2009
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventor: Cheng-Hung Yu
  • Publication number: 20090294888
    Abstract: A method for fabricating an image sensor is disclosed. First, a semiconductor substrate is provided, in which a photosensitive region is defined on the semiconductor substrate. At least one photosensitive material is then formed on the semiconductor substrate, and a first exposure process is performed to form a tapered pattern in the photosensitive material. A second exposure process is performed to form a straight foot pattern in the photosensitive material, and a developing process is performed to remove the tapered pattern and straight foot pattern to form the photosensitive material into a plurality of photosensitive blocks. A reflow process is conducted thereafter to form the photosensitive blocks into a plurality of microlenses.
    Type: Application
    Filed: May 28, 2008
    Publication date: December 3, 2009
    Inventors: Hsin-Ting Tsai, Cheng-Hung Yu
  • Publication number: 20090250247
    Abstract: A circuit board including a first dielectric layer having a first surface and a second surface, a first circuit layer, a second dielectric layer, and a second circuit layer is provided. At least one trench is formed on the first surface, and the first circuit layer is formed on an inside wall of the trench. In addition, the second dielectric layer is disposed in the trench, and covers the first circuit layer. The second circuit layer is disposed in the trench, and the second dielectric layer is located between the first circuit layer and the second circuit layer. A manufacturing method of the circuit board is further provided.
    Type: Application
    Filed: July 9, 2008
    Publication date: October 8, 2009
    Applicant: UNIMICRON TECHNOLOGY CORP.
    Inventors: Cheng-Po Yu, Cheng-Hung Yu
  • Publication number: 20090124037
    Abstract: A fabricating process of an image sensor is provided. A substrate having thereon a circuit of the image sensor and an insulating layer is provided, wherein the insulating layer has therein a pad opening exposing a metal pad of the circuit. A filling layer is formed in the pad opening, and a color filter array is formed over the insulating layer. A planarization layer is formed over the substrate covering the color filter array, and a microlens array is formed on the planarization layer. The filling layer is then removed.
    Type: Application
    Filed: November 13, 2007
    Publication date: May 14, 2009
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventor: Cheng-Hung Yu
  • Patent number: 7473522
    Abstract: A method for manufacturing micro-lenses of image sensors includes providing a semiconductor substrate having at least a planarization layer, performing a first photolithography process to form a first set of micro-lens blocks on the planarization layer, performing a first baking process to form a first set of micro-lenses, performing a first surface treatment to harden surfaces of the first set of micro-lenses, performing a second photolithography to form a second set of micro-lens blocks on the planarization layer, and performing a second baking process to form a second set of micro-lenses.
    Type: Grant
    Filed: May 28, 2007
    Date of Patent: January 6, 2009
    Assignee: United Microelectronics Corp.
    Inventor: Cheng-Hung Yu
  • Publication number: 20080299498
    Abstract: A method for manufacturing micro-lenses of image sensors includes providing a semiconductor substrate having at least a planarization layer, performing a first photolithography process to form a first set of micro-lens blocks on the planarization layer, performing a first baking process to form a first set of micro-lenses, performing a first surface treatment to harden surfaces of the first set of micro-lenses, performing a second photolithography to form a second set of micro-lens blocks on the planarization layer, and performing a second baking process to form a second set of micro-lenses.
    Type: Application
    Filed: May 28, 2007
    Publication date: December 4, 2008
    Inventor: Cheng-Hung Yu
  • Publication number: 20070281388
    Abstract: A selective metal surface treatment process of a circuit board, which has a solder mask and a multiple of selective metal treatment surface areas, wherein the solder mask covers the surface of the circuit board but exposes the selective metal surface treatment areas, is provided. The selective metal surface treatment process includes using a printhead to selectively print a resist on a selective metal surface treatment area, performing a surface treatment of the other selective metal surface treatment areas, and removing the resist. A selective metal surface treatment apparatus used for performing the selective metal surface treatment process of the circuit board is also provided. Through the present invention, unnecessary waste of the materials in the process is reduced and the processing time is shortened.
    Type: Application
    Filed: July 10, 2006
    Publication date: December 6, 2007
    Applicant: UNIMICRON TECHNOLOGY CORP.
    Inventors: Cheng-Po Yu, Cheng-Hung Yu, Chi-Min Chang
  • Publication number: 20070263862
    Abstract: A manufacturing process and an apparatus for printing imprint on defective board are provided. An automatic printing device is used for replacing operator, so as to reduce manpower and to increase the correctness and veracity of defect mark printing. The manufacturing process includes the following steps: first, an image sensor captures an image of a defect mark and transmits the image to a processing unit for data processing. Next, the data is compared, and an inkjet head is notified of the correct printing position to print ink on the customer identification mark of the printed circuit board.
    Type: Application
    Filed: August 21, 2006
    Publication date: November 15, 2007
    Applicant: UNIMICRON TECHNOLOGY CORP.
    Inventors: Tzyy-Jang Tseng, Cheng-Po Yu, Chi-Min Chang, Cheng-Hung Yu
  • Publication number: 20070246639
    Abstract: A wafer for manufacturing image sensors is disclosed. The wafer includes an image sensor and a test key. The image sensor includes a plurality of micro-lenses; the test key includes a plurality of micro-lens samples for defects inspection. The arrangement of the micro-lens samples on the test key is substantially different from the arrangement of the micro-lenses on the image sensor. The arrangement of the micro-lens samples on the test key allows defects inspection to become less complicated.
    Type: Application
    Filed: April 19, 2006
    Publication date: October 25, 2007
    Inventor: Cheng-Hung Yu
  • Publication number: 20070166649
    Abstract: A method of forming a micro device includes using a light source which has a first wavelength beaming to a photo resist which is suited for a second wavelength, developing the photo resist which is suited for the second wavelength to form a plurality of sensitization block, and performing a heating process on the sensitization block to form a micro device.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 19, 2007
    Inventor: Cheng-Hung Yu
  • Publication number: 20070153488
    Abstract: A method for fabricating a double-sided or multi-layer printed circuit board (PCB) by ink-jet printing that includes providing a substrate, forming a first self-assembly membrane (SAM) on at least one side of the substrate, forming a non-adhesive membrane on the first SAM, forming at least one microhole in the substrate, forming a second SAM on a surface of the microhole, providing catalyst particles on the at least one side of the substrate and on the surface of the microhole, and forming a catalyst circuit pattern on the substrate.
    Type: Application
    Filed: October 31, 2006
    Publication date: July 5, 2007
    Applicants: Industrial Technology Research Institute, Unimicron Technology Corp.
    Inventors: Ming-Huan Yang, Chung-Wei Wang, Chia-Chi Wu, Chao-Kai Cheng, Tzyy-Jang Tseng, Chang-Ming Lee, Cheng-Po Yu, Cheng-Hung Yu
  • Patent number: 7180044
    Abstract: An image sensor device including a substrate, a plurality of photo sensors, a dielectric layer, a planar layer, a plurality of color filters, a plurality of microlenses, and a shield layer is provided. The photo sensors are disposed in the substrate, and the dielectric layer is disposed over the photo sensors and the substrate. The planar layer is disposed over the dielectric layer. The color filters are disposed in the planar layer, wherein each of the color filters is disposed over each of the photo sensors. The microlenses are disposed over the planar layer, wherein each of the microlenses is disposed over each of the color filter. The shield layer including a plurality of openings is disposed in the planar layer and is disposed under or over the color filters, wherein each of the openings is disposed over each of the color filters.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: February 20, 2007
    Assignee: United Microelectronics Corp.
    Inventor: Cheng-Hung Yu
  • Publication number: 20060176326
    Abstract: A fluid injector device with a plurality of heaters for bubble generation is provided. The resistance of each heater is measured and compared with a standard operating resistance. Output signal is adjusted to heaters with resistance exceeding the standard operating resistance.
    Type: Application
    Filed: February 9, 2005
    Publication date: August 10, 2006
    Inventors: Chung-Cheng Chou, Tsung-Ping Hsu, Weng-Chen Liu, Cheng-Hung Yu, Shang-Shi Wu
  • Patent number: D619154
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: July 6, 2010
    Assignee: Cal-Comp Electronics & Communications Company Limited
    Inventors: Jia-Chi Feng, Cheng-Hung Yu
  • Patent number: D631184
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: January 18, 2011
    Assignee: Cal-Comp Electronics & Communications Company Limited
    Inventors: Jia-Chi Feng, Cheng-Hung Yu