Patents Represented by Attorney IPSG, P.C.
  • Patent number: 8164349
    Abstract: A method for identifying a stabilized plasma within a processing chamber of a plasma processing system is provided. The method includes executing a strike step within the processing chamber to generate a plasma. The strike step includes applying a substantially high gas pressure within the processing chamber and maintaining a low radio frequency (RF) power within the processing chamber. The method also includes employing a probe head to collect a set of characteristic parameter measurements during the strike step, the probe head being on a surface of the processing chamber, wherein the surface is within close proximity to a substrate surface. The method further includes comparing the set of characteristic parameter measurements against a pre-defined range. If the set of characteristic parameter measurements is within the pre-defined range, the stabilized plasma exists.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: April 24, 2012
    Assignee: Lam Research Corporation
    Inventors: Jean-Paul Booth, Douglas L. Keil
  • Patent number: 8159233
    Abstract: An arrangement for detecting in-situ arcing events within a processing chamber of a plasma processing system during substrate processing is provided. The arrangement includes a probe arrangement, which is disposed on a surface of the processing chamber and is configured to measure at least one plasma processing parameter. The probe arrangement includes a plasma-facing sensor and a measuring capacitor, wherein the plasma-facing sensor is coupled to a first plate of the measuring capacitor. The probe arrangement also includes a detection arrangement that is coupled to a second plate of the measuring capacitor, wherein the detection arrangement is configured for converting an induced current flowing through the measuring capacitor into a set of digital signals, which is processed to detect the in-situ arcing events.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: April 17, 2012
    Assignee: Lam Research Corporation
    Inventors: Jean-Paul Booth, Douglas Keil
  • Patent number: 7899627
    Abstract: In a plasma processing system, a method for dynamically establishing a baseline is provided. The method includes processing a first substrate. The method also includes collecting a first signal data for the first substrate. The method further includes comparing the first signal data against the baseline. The method moreover includes including the first signal data in a recalculation of the baseline if the first signal data is within a confidence level range, which is in between a top level above the baseline and a bottom level below the baseline.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: March 1, 2011
    Assignee: Lam Research Corporation
    Inventors: Chung-Ho Huang, Jackie Seto, Nicolas Bright
  • Patent number: 7384807
    Abstract: A method of fabricating a vertical structure opto-electronic device includes fabricating a plurality of vertical structure opto-electronic devices on a crystal substrate, and then removing the substrate using a laser lift-off process. The method then fabricates a metal support structure in place of the substrate. In one aspect, the step of fabricating a metal support structure in place of the substrate includes the step of plating the metal support structure using at least one of electroplating and electro-less plating. In one aspect, the vertical structure is a GaN-based vertical structure, the crystal substrate includes sapphire and the metal support structure includes copper. Advantages of the invention include fabricating vertical structure LEDs suitable for mass production with high reliability and high yield.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: June 10, 2008
    Assignee: Verticle, Inc.
    Inventor: Myung Cheol Yoo
  • Patent number: 6951327
    Abstract: To release a spring clip holding a protruding detent in a leg supporting an overhead canopy, a finger-operated push button is actuated from a clearance position and is forced against the detent causing it to withdraw within the leg, and the canopy slidably releases along the leg without injury to the out-of-the-way actuating fingers.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: October 4, 2005
    Assignee: Northpole Limited
    Inventor: Dong Tak Seo
  • Patent number: 6763841
    Abstract: A tent (10) with tendable windows (14) having a main structure (12) including a plurality of walls (16,18,20) which are oriented at a first angle (60) with respect to a vertical reference. The tent (10) also includes at least one window (14) which is extendable to a second angle (62) with respect to a vertical reference, where the second angle (62) is a more negative angle than the first angle (60) thus producing windows (14) which are horizontally extendable further than the tent walls (16,18,20).
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: July 20, 2004
    Assignee: NorthPole Limited
    Inventor: Robert R. Cantwell
  • Patent number: D498272
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: November 9, 2004
    Assignee: NorthPole Limited
    Inventors: Anthony Sanford-Schwentke, Sungho Kim, Arvin Patel