Patents by Inventor Larry Bruce Fritzinger

Larry Bruce Fritzinger 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).

  • Capacitor for an integrated circuit
    Patent number: 6720604
    Abstract: The present invention provides a capacitor comprising a conductive plug comprising a top surface and exposed sidewalls, wherein the sidewalls comprise a layer selected from the group consisting of titanium and titanium nitride, and an electrode material layer over the conductive plug sidewalls, wherein the layer of electrode material is not titanium nor titanium nitride.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: April 13, 2004
    Assignee: Agere Systems Inc.
    Inventors: Larry Bruce Fritzinger, Nace Layadi, Sailesh Mansinh Merchant, Pradip Kumar Roy
  • Method of making a capacitor
    Patent number: 6358790
    Abstract: The present invention provides a method for fabricating a capacitor, comprising the steps of forming a trench in a substrate, forming a layer of a first material selected from the group consisting of titanium and titanium nitride in the trench, filling the trench with a conductive material to form a plug, planarizing the substrate, patterning the substrate to expose the first material, forming an electrode material layer over the substrate, and patterning the electrode material layer, whereby the first material is substantially encapsulated by the electrode material layer.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: March 19, 2002
    Assignee: Agere Systems Guardian Corp.
    Inventors: Larry Bruce Fritzinger, Nace Layadi, Sailesh Mansinh Merchant, Pradip Kumar Roy
  • Capacitor for an integrated circuit
    Patent number: 6323537
    Abstract: The present invention provides an integrated circuit capacitor comprising a conductive plug comprising a top portion comprising sidewalls, and a bottom portion, wherein the bottom portion of the plug is coated with a material selected from the group consisting of titanium and titanium nitride and wherein the top portion of the plug is substantially not coated with a material selected from the group consisting of titanium and titanium nitride.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: November 27, 2001
    Assignee: Agere Systems Guardian Corp.
    Inventors: Larry Bruce Fritzinger, Nace Layadi, Sailesh Mansinh Merchant, Pradip Kumar Roy
  • Method of making a capacitor
    Patent number: 6218255
    Abstract: The present invention provides a method for fabricating a capacitor, comprising the steps of forming a trench in a substrate, forming a layer of a first material selected from the group consisting of titanium and titanium nitride in the trench, filling the trench with a conductive material to form a conductive plug, planarizing the substrate, patterning the substrate to partially expose the first material and to create a top portion and a bottom portion to the plug, wherein the bottom portion is in the substrate, and removing the first material from the top portion of the plug.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: April 17, 2001
    Assignee: Agere Systems Guardian Corp.
    Inventors: Larry Bruce Fritzinger, Nace Layadi, Sailesh Mansinh Merchant, Pradip Kumar Roy
  • Integrated circuit fabrication
    Patent number: 5945355
    Abstract: A novel process for forming a window, illustratively, an emitter window BiCMOS process is disclosed. An anisotropic etch followed by an isotropic etch to open the window is disclosed. The isotropic etch prevents contamination of the substrate by the anisotropic etching process.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: August 31, 1999
    Assignee: Lucent Technologies Inc.
    Inventors: Larry Bruce Fritzinger, Taeho Kook, Kuo-Hua Lee