Patents by Inventor David B. Clegg

David B. Clegg 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: 9515034
    Abstract: A conductive structure is formed in a last metal layer of an integrated circuit. Passivation material is patterned over a portion of the conductive structure. A first trench is patterned around a selected portion of the passivation material. The selected portion represents a bond region of a wire bond to be formed above the passivation material. A portion of the passivation material completely covers a bottom of the trench. A layer of conductive material is conformally deposited over the passivation material. The conformal depositing resulting in a second trench forming in the conductive material over the first trench in the passivation material. The second trench is positioned to contain at least a portion of a splash of the conductive material when the wire bond is subsequently formed.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: December 6, 2016
    Assignee: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Sohrab Safai, David B. Clegg, Tu-Anh N. Tran
  • Patent number: 9111755
    Abstract: A semiconductor device comprises an integrated circuit including a wire bond pad and a passivation material, and a first gap between a first selected portion of the wire bond pad and the passivation material. The first gap is positioned to contain at least a first portion of a splash of the wire bond pad formed during a wire bond process.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: August 18, 2015
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Tu-Anh N. Tran, David B. Clegg, Sohrab Safai
  • Publication number: 20150194396
    Abstract: A conductive structure is formed in a last metal layer of an integrated circuit. Passivation material is patterned over a portion of the conductive structure. A first trench is patterned around a selected portion of the passivation material. The selected portion represents a bond region of a wire bond to be formed above the passivation material. A portion of the passivation material completely covers a bottom of the trench. A layer of conductive material is conformally deposited over the passivation material. The conformal depositing resulting in a second trench forming in the conductive material over the first trench in the passivation material. The second trench is positioned to contain at least a portion of a splash of the conductive material when the wire bond is subsequently formed.
    Type: Application
    Filed: January 3, 2014
    Publication date: July 9, 2015
    Inventors: Sohrab SAFAI, David B. CLEGG, Tu-Anh N. TRAN
  • Publication number: 20150194395
    Abstract: A method includes forming a conductive bond pad over a conductive structure in a last metal layer of an integrated circuit. A trench is etched around at least a portion of a perimeter of a wire bond region of the conductive bond pad. A portion of the conductive bond pad remains at the bottom of the trench to retain a conductive path between the wire bond pad region and the integrated circuit. The trench is positioned and sized to contain at least a portion of a splash of the conductive bond pad when a wire bond is subsequently formed in the wire bond region.
    Type: Application
    Filed: January 3, 2014
    Publication date: July 9, 2015
    Inventors: Sohrab Safai, David B. Clegg, Tu-Anh N. Tran
  • Patent number: 6713381
    Abstract: An interconnect overlies a semiconductor device substrate (10). In one embodiment, a conductive barrier layer overlies a portion of the interconnect, a passivation layer (92) overlies the conductive barrier layer and the passivation layer (92) has an opening that exposes portions of the conductive barrier layer (82). In an alternate embodiment a passivation layer (22) overlies the interconnect, the passivation layer (22) has an opening (24) that exposes the interconnect and a conductive barrier layer (32) overlies the interconnect within the opening (24).
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: March 30, 2004
    Assignee: Motorola, Inc.
    Inventors: Alexander L. Barr, Suresh Venkatesan, David B. Clegg, Rebecca G. Cole, Olubunmi Adetutu, Stuart E. Greer, Brian G. Anthony, Ramnath Venkatraman, Gregor Braeckelmann, Douglas M. Reber, Stephen R. Crown
  • Publication number: 20020093098
    Abstract: An interconnect overlies a semiconductor device substrate (10). In one embodiment, a conductive barrier layer overlies a portion of the interconnect, a passivation layer (92) overlies the conductive barrier layer and the passivation layer (92) has an opening that exposes portions of the conductive barrier layer (82). In an alternate embodiment a passivation layer (22) overlies the interconnect, the passivation layer (22) has an opening (24) that exposes the interconnect and a conductive barrier layer (32) overlies the interconnect within the opening (24).
    Type: Application
    Filed: January 18, 2002
    Publication date: July 18, 2002
    Inventors: Alexander L. Barr, Suresh Venkatesan, David B. Clegg, Rebecca G. Cole, Olubunmi Adetutu, Stuart E. Greer, Brian G. Anthony, Ramnath Venkatraman, Gregor Braeckelmann, Douglas M. Reber, Stephen R. Crown
  • Publication number: 20020079595
    Abstract: A pad area of a substrate (50) includes a conductive trace (52) formed on the substrate (50) having a first surface area, the first surface area being of a first solderability. A conductive pad (56) is formed on the first surface area of the conductive trace (52). The conductive pad (56) has a second surface area, the second surface area being of a second solderability. The second solderability is greater than the first solderability. Because of the different solderabilities, a solder bump (46) on the semiconductor die (40) can be reflowed and connected to the second surface area without using a soldermask (28) to contain the melted solder on the second surface area.
    Type: Application
    Filed: December 21, 2000
    Publication date: June 27, 2002
    Inventors: Burton J. Carpenter, Nhat D. Vo, Christopher T. Clark, Willliam M. Stone, Trent S. Uehling, David B. Clegg
  • Publication number: 20020000665
    Abstract: An interconnect overlies a semiconductor device substrate (10). In one embodiment, a conductive barrier layer overlies a portion of the interconnect, a passivation layer (92) overlies the conductive barrier layer and the passivation layer (92) has an opening that exposes portions of the conductive barrier layer (82). In an alternate embodiment a passivation layer (22) overlies the interconnect, the passivation layer (22) has an opening (24) that exposes the interconnect and a conductive barrier layer (32) overlies the interconnect within the opening (24).
    Type: Application
    Filed: April 5, 1999
    Publication date: January 3, 2002
    Inventors: ALEXANDER L. BARR, SURESH VENKATESAN, DAVID B. CLEGG, REBECCA G. COLE, OLUBUNMI ADETUTU, STUART E. GREER, BRIAN G. ANTHONY, RAMNATH VENKATRAMAN, GREGOR BRAECKELMANN, DOUGLAS M. REBER, STEPHEN R. CROWN