Patents by Inventor Chih-Hao Wu

Chih-Hao Wu 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).

  • Patent number: 7664614
    Abstract: A method of inspecting defect of a mask is provided. In this method, a database for storing a plurality of virtual simulation models is created. The virtual simulation models are determined by a plurality of factors including an optical effect and a chemical effect during the transferring the pattern of a mask to the photoresist layer on a wafer. A mask defect image is acquired. A simulation contour of the mask defect image is generated from at least one virtual simulation model in the database. Next, the acceptability of the mask is determined.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: February 16, 2010
    Assignee: United Microelectronics Corp.
    Inventors: Te-Hung Wu, Shih-Ming Yen, Chih-Hao Wu, Chuen-Huei Yang
  • Publication number: 20090119045
    Abstract: A method of inspecting defect of a mask is provided. In this method, a database for storing a plurality of virtual simulation models is created. The virtual simulation models are determined by a plurality of factors including an optical effect and a chemical effect during the transferring the pattern of a mask to the photoresist layer on a wafer. A mask defect image is acquired. A simulation contour of the mask defect image is generated from at least one virtual simulation model in the database. Next, the acceptability of the mask is determined.
    Type: Application
    Filed: November 2, 2007
    Publication date: May 7, 2009
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Te-Hung Wu, Shih-Ming Yen, Chih-Hao Wu, Chuen-Huei Yang
  • Publication number: 20090103057
    Abstract: An automatic iris diaphragm module is adapted to a projector having a casing, and is capable of adjusting a size of luminous flux of a light source of the projector. The automatic iris diaphragm module is provided with a chassis, a fixed mask, a movable mask, a drive rack, and a motor. The chassis is fixed on the casing. The fixed mask is fixed on the chassis and has an opening. The movable mask is slidably disposed on the fixed mask. The drive rack is fixed on the movable mask. The motor is fixed on the chassis and has a driving gear engaging with the drive rack for driving the drive rack to make the movable mask slide relative to the fixed mask, for adjusting the size of the luminous flux of the light source through the opening.
    Type: Application
    Filed: April 30, 2008
    Publication date: April 23, 2009
    Applicant: CORETRONIC CORPORATION
    Inventors: Chih-Hao Wu, Kuan-Chou Ko
  • Publication number: 20090059186
    Abstract: A method for forming a lamp holder. The lamp holder is applied in a projection apparatus. First, the lamp holder comprising metal is provided. An insulating layer is formed on one surface of the lamp holder to insulate the lamp holder from another element of the projection apparatus.
    Type: Application
    Filed: May 20, 2008
    Publication date: March 5, 2009
    Applicant: CORETRONIC CORPORATION
    Inventors: Chih-Hao Wu, Ying-Yuan Shen, Jung-Chi Chen, Tsan-Fu Tseng
  • Publication number: 20080295062
    Abstract: A method of verifying a layout pattern comprises separately steps of obtaining a simulated pattern at a lower portion of a film by using a layout pattern as a mask to transfer the layout pattern to the film, and obtaining a simulated pattern at an upper portion of the film by using the layout pattern as a mask to transfer the layout pattern to the film. The layout pattern is verified according to the upper and lower simulated patterns.
    Type: Application
    Filed: May 23, 2007
    Publication date: November 27, 2008
    Inventors: Te-Hung Wu, Chia-Wei Huang, Chuen Huei Yang, Sheng-Yuan Huang, Pei-Ru Tsai, Chih-Hao Wu
  • Publication number: 20080266236
    Abstract: A dynamic control method for controlling backlight module of liquid crystal display (LCD) comprises steps of: receiving a frame data which is transferred to the LCD and consists a plurality of raw grayscale level; processing a statistical analysis for distribution of the plurality of raw grayscale level; and transferring a plurality of corrected grayscale level which is resulted from the statistical analysis corresponding to the raw grayscale level to the backlight control unit and a data modification simultaneously, wherein the backlight control unit uses the plurality of corrected grayscale level to modify brightness of backlight module and the data modification uses the plurality of corrected grayscale level to compare with the plurality of raw grayscale level for accurate display performance, so that the electrical power consumption is reduced and image quality is enhanced.
    Type: Application
    Filed: April 26, 2007
    Publication date: October 30, 2008
    Applicant: VastView Technology Inc.
    Inventors: Yuh-Ren Shen, Chang-Cheng Lin, Cheng-Chung Peng, Chih-Hao Wu
  • Publication number: 20080225243
    Abstract: A projection apparatus including a projection body and at least one adjusting leg is provided. The projection body has a casing, and the bottom of the casing has at least one accommodating cave. The adjusting leg includes a supporter and a pivoting rod. The supporter has a supporting portion and a screw connected to the supporting portion, and the projection body is capable of being supported on a surface by the supporting portion. The pivoting rod is pivoted to the casing and has a threaded hole, and the screw is screwed into the threaded hole. The pivoting rod is capable of being rotated along an axis of the pivoting rod to drive the supporter to rotate, so as to accommodate the supporting portion in the accommodating cave.
    Type: Application
    Filed: November 13, 2007
    Publication date: September 18, 2008
    Applicant: CORETRONIC CORPORATION
    Inventors: Che-Hsueh Chen, Jung-Chi Chen, Chih-Hao Wu
  • Patent number: 7357653
    Abstract: A dual-slot memory card adapter includes a base, a space in the base, a partitioning member integrated with the adapter or separately and laterally disposed in the space to divide the space into upper and lower slot areas, one corresponding attachment each provided on both sides of the base, a card allotment mechanism pivoted to the attachments and operating between two ports of both slots, and a lid automatically closing up one port to a slot when a memory card is inserted into another slot to prevent insertion and judgment by mistake.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: April 15, 2008
    Assignee: Proconn Technology Co., Ltd.
    Inventors: Kun-Ming Hung, Ta-Chih Yu, Chien-Yeh Lee, Chih-Hao Wu
  • Publication number: 20060276082
    Abstract: A dual-slot memory card adapter includes a base, a space in the base, a partitioning member integrated with the adapter or separately and laterally disposed in the space to divide the space into upper and lower slot areas, one corresponding attachment each provided on both sides of the base, a card allotment mechanism pivoted to the attachments and operating between two ports of both slots, and a lid automatically closing up one port to a slot when a memory card is inserted into another slot to prevent insertion and judgment by mistake.
    Type: Application
    Filed: June 5, 2006
    Publication date: December 7, 2006
    Inventors: Kun-Ming Hung, Ta-Chih Yu, Chien-Yeh Lee, Chih-Hao Wu
  • Publication number: 20050280348
    Abstract: A field emission display with multiple display directions includes an anode structure and a cathode structure. The anode structure has a plurality of peripheral sides, and each of the peripheral sides has an interior surface. A conductive layer and a phosphor layer formed on each interior surface of the shell substrate. The cathode structure is disposed within the shell substrate of the anode structure. The cathode structure has a plurality of peripheral sides facing respective interior surfaces of the anode structure and a conductive layer and an electron emission layer formed on each peripheral side of the cathode structure.
    Type: Application
    Filed: June 16, 2004
    Publication date: December 22, 2005
    Inventors: Te-Fong Chan, Chih-Che Kuo, Yao-Zong Chen, Frank Yang, Chih-Hao Wu, Kuei-Wen Cheng