Patents by Inventor Greg C. Baldwin

Greg C. Baldwin 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: 7202537
    Abstract: The present invention provides a system for limiting degradation of a first semiconductor structure (304) caused by an electric field (314), generated from within the semiconductor substrate (302) by high voltage on a second semiconductor structure (310). A semiconductor device (300) is adapted to reduce the effective magnitude of the field—as realized at structure 304—to some fractional component (320), or to render the angle (322)—at which the field approaches the first structure through a first substrate region (306)—acute. Certain embodiments of the present invention provide for: lateral recession of the first semiconductor structure to abut an isolation structure (312), which is disposed between the second semiconductor structure and the first substrate region; lateral recession of the first semiconductor structure from the isolation structure, so as to form a moat therebetween; and a counter-doped region (316) within the first substrate region.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: April 10, 2007
    Assignee: Texas Instruments Incorporated
    Inventors: Periannan Chidambaram, Greg C. Baldwin
  • Patent number: 7101751
    Abstract: The present invention provides a system for limiting degradation of a first semiconductor structure (304) caused by an electric field (314), generated from within the semiconductor substrate (302) by high voltage on a second semiconductor structure (310). A semiconductor device (300) is adapted to reduce the effective magnitude of the field—as realized at structure 304—to some fractional component (320), or to render the angle (322)—at which the field approaches the first structure through a first substrate region (306)—acute. Certain embodiments of the present invention provide for: lateral recession of the first semiconductor structure to abut an isolation structure (312), which is disposed between the second semiconductor structure and the first substrate region; lateral recession of the first semiconductor structure from the isolation structure, so as to form a moat therebetween; and a counter-doped region (316) within the first substrate region.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: September 5, 2006
    Assignee: Texas Instruments Incorporated
    Inventors: PR Chidambaram, Greg C. Baldwin
  • Publication number: 20040232556
    Abstract: Integrated circuit inductors (5) are formed by interconnecting various metal layers (10) in an integrated circuit with continuous vias (200). Using continuous vias (200) improves the Q factor over existing methods for high frequency applications. The contiguous length of the continuous vias should be greater than three percent of the length of the inductor (5).
    Type: Application
    Filed: May 11, 2004
    Publication date: November 25, 2004
    Inventors: Robert L. Pitts, Greg C. Baldwin
  • Patent number: 6730554
    Abstract: An integrated circuit resistor (170) is formed on an isolation dielectric structure (20) formed in a semiconductor (10). A patterned silicon nitride layer (125) and an optional patterned silicon oxide layer (135) is formed on the surface of the resistor polysilicon layer (40) that functions to mask the surface of the integrated circuit resistor (170) during the formation of metal silicide regions (160) on the integrated circuit resistor (170).
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: May 4, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Greg C. Baldwin, Freidoon Mehrad
  • Patent number: 6727133
    Abstract: An integrated circuit resistor (150) is formed on an isolation dielectric structure (20) formed in a semiconductor (10). A patterned silicon nitride layer (74) is formed on the surface of the resistor polysilicon layer (40) that functions to mask the surface of the integrated circuit resistor (150) during the formation of metal silicide regions (140) on the integrated circuit resistor (150).
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: April 27, 2004
    Assignee: Texas Instruments Incorporated
    Inventor: Greg C. Baldwin
  • Patent number: 6333238
    Abstract: An integrated circuit containing a resistor and the resistor per se. The circuit includes a substrate (2), a semiconductor resistor (3) on the substrate and a layer of electrically insulating material (5) disposed over the substrate and the semiconductor resistor having at least one contact (11, 13, 15) extending therethrough to the semiconductor resistor, the contact having an electrical path therein extending to and forming an interface with an end portion of the semiconductor resistor. The semiconductor resistor has a semiconductor resistor body, preferably of doped polysilicon, having one of a positive or negative temperature coefficient of resistance and a resistor head. The resistor head consists essentially of the electrical path which is metal interconnect, the contacts and then interface to and from the resistor body and in contact with the resistor body, the resistor head having the other of a positive or negative temperature coefficient of resistance.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: December 25, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: Greg C. Baldwin, Alwin J. Tsao
  • Publication number: 20010000122
    Abstract: An integrated circuit containing a resistor and the resistor per se. The circuit includes a substrate (2) , a semiconductor resistor (3) on the substrate and a layer of electrically insulating material (5) disposed over the substrate and the semiconductor resistor having at least one contact (11, 13, 15) extending therethrough to the semiconductor resistor, the contact having an electrical path therein extending to and forming an interface with an end portion of the semiconductor resistor. The semiconductor resistor has a semiconductor resistor body, preferably of doped polysilicon, having one of a positive or negative temperature coefficient of resistance and a resistor head. The resistor head consists essentially of the electrical path which is metal interconnect, the contacts and then interface to and from the resistor body and in contact with the resistor body, the resistor head having the other of a positive or negative temperature coefficient of resistance.
    Type: Application
    Filed: December 6, 2000
    Publication date: April 5, 2001
    Inventors: Greg C. Baldwin, Alwin J. Tsao
  • Patent number: 6211769
    Abstract: An integrated circuit containing a resistor and the resistor per se. The circuit includes a substrate (2), a semiconductor resistor (3) on the substrate and a layer of electrically insulating material (5) disposed over the substrate and the semiconductor resistor having at least one contact (11, 13, 15) extending therethrough to the semiconductor resistor, the contact having an electrical path therein extending to and forming an interface with an end portion of the semiconductor resistor. The semiconductor resistor has a semiconductor resistor body, preferably of doped polysilicon, having one of a positive or negative temperature coefficient of resistance and a resistor head. The resistor head consists essentially of the electrical path which is metal interconnect, the contacts and then interface to and from the resistor body and in contact with the resistor body, the resistor head having the other of a positive or negative temperature coefficient of resistance.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: April 3, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: Greg C. Baldwin, Alwin J. Tsao
  • Patent number: 6150669
    Abstract: A first test structure (40) is used to measure both the gate resistance/linewidth and transistor performance. A gate line (42) crosses a moat region (44) with source (48) and drain (50) regions formed on either side of the gate line (42). The gate line (42) is connected to four probe pads (52) in an H configuration for accurate linewidth measurements. A second test structure (70) may be used alone or in conjunction with the first test structure. A single gate line (72) crosses a moat region (74) several times. This allows both capacitance and gate gate-resistance measurements with the same test structure and for more accurate TLD measurement.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: November 21, 2000
    Assignee: Texas Instruments Incorporated
    Inventors: Mahalingam Nandakumar, Greg C. Baldwin, Andrew T. Appel