Patents by Inventor Steven Hsu

Steven Hsu 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: 20050104612
    Abstract: A current mirror multi-channel leakage monitor circuit and method measures die leakage and generates digital keeper control bits to control a process compensated dynamic circuit. The leakage monitor enables high resolution on-chip leakage measurements in multiple locations on a die, thereby saving test time and enabling both die to die and within die process compensation.
    Type: Application
    Filed: December 28, 2004
    Publication date: May 19, 2005
    Inventors: Steven Hsu, Ram Krishnamurthy, Chris Kim
  • Patent number: 6878260
    Abstract: A process for forming an interface (106) between a plated and a non-plated area (102, 104) on the surface of a plastic component (100) is disclosed. First, an anti-plating layer (110) is formed over the surface of the plastic component. Thereafter, a low-power laser beam (10) is used to remove a portion of the anti-plating layer and to form an interface between the plated area and the non-plated area. A seeding layer (120) is formed on the plated area so that the plated area is electrically conductive. Finally, a metallic layer (130) is electrically plated over the seeding layer. The metallic layer connects with the anti-plating layer via the interface. The cost of producing the anti-plating layer is low. Moreover, since the laser etching operation is able to produce a high-quality interface boundary between the plated and the non-plated area, yield of the process is improved.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: April 12, 2005
    Assignee: High Tech Computer, Corp.
    Inventors: Che-Hung Huang, Steven Hsu
  • Publication number: 20050068814
    Abstract: A register file includes a multi-level multiplexer output circuit coupled to a global bit trace and keeper circuitry coupled to said global bit trace and a driving signal trace. The register file also has decoder circuitry coupled to said keeper circuitry to selectively decouple the driving signal trace from said global bit trace.
    Type: Application
    Filed: September 30, 2003
    Publication date: March 31, 2005
    Inventors: Bhaskar Chatterjee, Steven Hsu, Ram Krishnamurthy
  • Publication number: 20050068801
    Abstract: A register file contains a local bit trace and a driving signal trace as well as a plurality of data cells coupled to the local bit trace. A device is coupled to the driving signal trace and the local bit trace to intelligently charge and float the local bit trace. The intelligent charging and floating is facilitated by determination of a selection of one of the data cells.
    Type: Application
    Filed: September 30, 2003
    Publication date: March 31, 2005
    Inventors: Bhaskar Chatterjee, Steven Hsu, Sriram Vangal, Ram Krishnamurthy
  • Publication number: 20040202776
    Abstract: A process for forming an interface (106) between a plated and a non-plated area (102, 104) on the surface of a plastic component (100) is disclosed. First, an anti-plating layer (110) is formed over the surface of the plastic component. Thereafter, a low-power laser beam (10) is used to remove a portion of the anti-plating layer and to form an interface between the plated area and the non-plated area. A seeding layer (120) is formed on the plated area so that the plated area is electrically conductive. Finally, a metallic layer (130) is electrically plated over the seeding layer. The metallic layer connects with the anti-plating layer via the interface. The cost of producing the anti-plating layer is low. Moreover, since the laser etching operation is able to produce a high-quality interface boundary between the plated and the non-plated area, yield of the process is improved.
    Type: Application
    Filed: June 9, 2003
    Publication date: October 14, 2004
    Inventors: Che-Hung Huang, Steven Hsu
  • Patent number: 6749465
    Abstract: A card connector (200) with a reinforcing structure (230) is provided for used in a handheld device. The card connector can mate with an elongated expansion card (10) which when inserted into the card connector has a portion located outside the handheld device. The card connector comprises an insulated main body (210) and a plurality of terminals (220) fixed to the main body. The terminals are used for electrically connecting the elongated expansion card with a printed circuit board (20) on which the card connector is mounted. The reinforcing structure (230) is formed from highly rigid material or high molecular weight polymer. The reinforcing structure strengthens the card connector against any external force resulting from subjecting the elongated expansion card to an external force, whereby the electrical connection between the terminals and printed circuit board will not break due to the external force.
    Type: Grant
    Filed: July 4, 2003
    Date of Patent: June 15, 2004
    Assignee: High Tech Computer, Corp.
    Inventors: Che-Hung Huang, Steven Hsu