Patents by Inventor M. Lawrence A. Dass

M. Lawrence A. Dass 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: 7202568
    Abstract: A method of passivating an integrated circuit (IC) is provided. An insulating layer is formed onto the IC. An adhesion layer is formed onto a surface of the insulating layer by treating the surface of the insulating layer with a gas. A first passivation layer is formed upon the adhesion layer, the first passivation layer and the gas including at least one common chemical element.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: April 10, 2007
    Assignee: Intel Corporation
    Inventors: Krishna Seshan, M. Lawrence A. Dass, Geoffrey L. Bakker
  • Patent number: 6891592
    Abstract: A method of manufacturing liquid crystal devices on a silicon substrate is disclosed. Such a method is accomplished by preparing a silicon substrate having a plurality of die arranged in an array with scribe streets between the dies, and alignment marks within designated scribe streets; preparing a glass substrate having scribe lines, alignment marks within designated scribe lines and openings for filing liquid crystal; attaching the glass substrate to the silicon substrate using the alignment marks on the glass substrate and on the silicon substrate to form a silicon-glass assembly; filling liquid crystal, via the openings on the glass substrate, into a cell gap of each die on the silicon-glass assembly, and sealing the openings on each die to form a liquid crystal device; and separating liquid crystal devices from the silicon-glass assembly along the scribe lines on the glass substrate.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: May 10, 2005
    Assignee: Intel Corporation
    Inventors: John F. Magana, M. Lawrence A. Dass
  • Publication number: 20040017537
    Abstract: A method of manufacturing liquid crystal devices on a silicon substrate is disclosed. Such a method is accomplished by preparing a silicon substrate having a plurality of die arranged in an array with scribe streets between the dies, and alignment marks within designated scribe streets; preparing a glass substrate having scribe lines, alignment marks within designated scribe lines and openings for filing liquid crystal; attaching the glass substrate to the silicon substrate using the alignment marks on the glass substrate and on the silicon substrate to form a silicon-glass assembly; filling liquid crystal, via the openings on the glass substrate, into a cell gap of each die on the silicon-glass assembly, and sealing the openings on each die to form a liquid crystal device; and separating liquid crystal devices from the silicon-glass assembly along the scribe lines on the glass substrate.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 29, 2004
    Inventors: John F. Magana, M. Lawrence A. Dass
  • Patent number: 6515358
    Abstract: A method of exposing a bond pad includes: providing an integrated circuit having a bond pad, a first passivation layer overlying an area portion of the bond pad, and a second passivation layer overlying the first passivation layer; removing a portion of the second passivation layer above the area portion of the bond pad exposing an area of the first passivation layer; curing the second passivation; and etching a portion of the exposed area of the first passivation layer to expose the top surface of the bond pad. A method of coupling an integrated circuit chip to a chip package is also disclosed as is a method of probing the bond pads of an integrated circuit. A probe card is further disclosed, including a probe assembly coupled to a printed circuit board, the probe assembly having a sloped sidewall portion with a plurality of probing beams extending from the sidewall portion.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: February 4, 2003
    Assignee: Intel Corporation
    Inventors: M. Lawrence A. Dass, Kenneth D. Karklin, Krishna Seshan, Amir Roggel
  • Publication number: 20020050629
    Abstract: A method of passivating an integrated circuit (IC) is provided. An insulating layer is formed onto the IC. An adhesion layer is formed onto a surface of the insulating layer by treating the surface of the insulating layer with a gas. A first passivation layer is formed upon the adhesion layer, the first passivation layer and the gas including at least one common chemical element.
    Type: Application
    Filed: November 6, 2001
    Publication date: May 2, 2002
    Inventors: Krishna Seshan, M. Lawrence A. Dass, Geoffrey L. Bakker
  • Patent number: 6357330
    Abstract: A wafer cutting apparatus which includes a wafer saw, a detector, and a control unit. The detector detects a variable of a wafer being sawed. The control unit utilizes the variable to control the saw.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: March 19, 2002
    Assignee: Intel Corporation
    Inventors: M. Lawrence A. Dass, Isaura S. Gaeta, Krishna Seshan
  • Patent number: 6352940
    Abstract: A method of passivating an integrated circuit (IC) is provided. An insulating layer is formed onto the IC. An adhesion layer is formed onto a surface of the insulating layer by treating the surface of the insulating layer with a gas and gas plasma. A first passivation layer is formed upon the adhesion layer, the first passivation layer and the gas and gas plasma including at least one common chemical element.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: March 5, 2002
    Assignee: Intel Corporation
    Inventors: Krishna Seshan, M. Lawrence A. Dass, Geoffrey L. Bakker
  • Patent number: 6162652
    Abstract: A method of testing an integrated circuit device including depositing a solder bump on a surface of a bond pad on an integrated circuit device, heat treating the solder bump, and testing the integrated circuit device by probing the solder bump.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: December 19, 2000
    Assignee: Intel Corporation
    Inventors: M. Lawrence A. Dass, Amir Roggel, Krishna Seshan
  • Patent number: 6143668
    Abstract: A method of exposing a bond pad includes: providing an integrated circuit having a bond pad, a first passivation layer overlying an area portion of the bond pad, and a second passivation layer overlying the first passivation layer; removing a portion of the second passivation layer above the area portion of the bond pad exposing an area of the first passivation layer; curing the second passivation; and etching a portion of the exposed area of the first passivation layer to expose the top surface of the bond pad. A method of coupling an integrated circuit chip to a chip package is also disclosed as is a method of probing the bond pads of an integrated circuit. A probe card is further disclosed, including a probe assembly coupled to a printed circuit board, the probe assembly having a sloped sidewall portion with a plurality of probing beams extending from the sidewall portion.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: November 7, 2000
    Assignee: Intel Corporation
    Inventors: M. Lawrence A. Dass, Kenneth D. Karklin, Krishna Seshan, Amir Roggel
  • Patent number: 6046101
    Abstract: An integrated circuit passivation layer including a first passivation layer portion of silicon nitride treated with nitrous oxide and a second passivation layer portion of polyimide. Also, a method of passivating an integrated circuit wafer including depositing a first passivation layer over the top surface of an integrated circuit wafer having a scribe street area between adjacent integrated circuit device portions, depositing a second passivation layer over the first passivation layer, and patterning the first passivation layer and the second passivation layer to expose the scribe street area.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: April 4, 2000
    Assignee: Intel Corporation
    Inventors: M. Lawrence A. Dass, Krishna Seshan, Isaura Gaeta
  • Patent number: 5536684
    Abstract: A process for the formation of a planar epitaxial cobalt silicide and for the formation of shallow conformal junctions for use in semiconductor processing. A cobalt silicide and titanium nitride bilayer is formed. The titanium nitride layer is chemically removed. Ions with or without a dopant are then implanted into the cobalt silicide layer. During the ion implantation, at least a portion of the cobalt silicide layer is transformed into an amorphous cobalt silicon mixture while the non-amorphous portion remains single crystal. If the ion implantation contains dopants, then after the implantation is completed, both the amorphous and non-amorphous portions of the cobalt silicide layer contain the dopants. The substrate is then annealed in either an ambient comprising a nitrogen gas or in an oxidizing ambient. During the anneal, the amorphous portion of the silicon substrate recrystallizes into a single crystal cobalt silicide layer.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: July 16, 1996
    Assignee: Intel Corporation
    Inventors: M. Lawrence A. Dass, Peng Cheng, David B. Fraser