Patents by Inventor Juan A. Chediak

Juan A. Chediak 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: 6946376
    Abstract: A method of forming conductive contacts to drain and source regions of a semiconductor device such as a field effect transistor (FET). A gate structure is formed over a portion of a semiconductor substrate, wherein the gate structure includes: a gate dielectric on a surface of the semiconductor substrate, a conductive gate aligned on the gate dielectric, a silicide layer aligned on the conductive gate, and a silicon nitride cap aligned on the silicide layer. Insulative spacers are formed on sidewalls of the gate structure, and the insulative spacers contact the semiconductor substrate. A drain region and a source region are formed within the semiconductor substrate, wherein a channel region is disposed between the drain region and the source region, and wherein the gate structure is over the channel region.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: September 20, 2005
    Assignee: International Business Machines Corporation
    Inventors: Juan A. Chediak, Randy W. Mann, James A. Slinkman
  • Publication number: 20020158286
    Abstract: A method of forming conductive contacts to drain and source regions of a semiconductor device such as a field effect transistor (FET). A gate structure is formed over a portion of a semiconductor substrate, wherein the gate structure includes: a gate dielectric on a surface of the semiconductor substrate, a conductive gate aligned on the gate dielectric, a silicide layer aligned on the conductive gate, and a silicon nitride cap aligned on the silicide layer. Insulative spacers are formed on sidewalls of the gate structure, and the insulative spacers contact the semiconductor substrate. A drain region and a source region are formed within the semiconductor substrate, wherein a channel region is disposed between the drain region and the source region, and wherein the gate structure is over the channel region.
    Type: Application
    Filed: June 17, 2002
    Publication date: October 31, 2002
    Inventors: Juan A. Chediak, Randy W. Mann, James A. Slinkman
  • Patent number: 6445050
    Abstract: A method of forming conductive contacts to drain and source regions of a semiconductor device such as a field effect transistor (FET). A gate structure is formed over a portion of a semiconductor substrate, wherein the gate structure includes: a gate dielectric on a surface of the semiconductor substrate, a conductive gate aligned on the gate dielectric, a silicide layer aligned on the conductive gate, and a silicon nitride cap aligned on the silicide layer. Insulative spacers are formed on sidewalls of the gate structure, and the insulative spacers contact the semiconductor substrate. A drain region and a source region are formed within the semiconductor substrate, wherein a channel region is disposed between the drain region and the source region, and wherein the gate structure is over the channel region.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: September 3, 2002
    Assignee: International Business Machines Corporation
    Inventors: Juan A. Chediak, Randy W. Mann, James A. Slinkman
  • Patent number: 6380063
    Abstract: A semiconductor device having borderless contacts thereby providing a device having a reduced overall size. In particular, the device includes a plurality of shallow trench isolations and a plurality of dielectric isolations thereon to separate the adjoining device components and prevent shorts. Sidewall spacers surrounding and extend slightly above the device gates and dielectric isolations to further prevent shorts. A layer of conductive material atop each gate and diffusion region provides for coplanar contact surfaces. A layer of silicide beneath select regions of the conductive layer enhance electrical conductivity within the device. An internal wireless interconnection to electrically connect diffusion regions of different logic devices within the structure is also provided.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: April 30, 2002
    Assignee: International Business Machines Corporation
    Inventors: Juan A. Chediak, Thomas G. Ference, Kurt R. Kimmel, Alain Loiseau, Randy W. Mann, Jed H. Rankin