Patents by Inventor Kevin M. Klein

Kevin M. Klein 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: 5656844
    Abstract: A semiconductor-on-insulator transistor (10) has a channel region (30) in a semiconductor film (16) under a gate insulating layer (26). The channel region has a top dopant concentration N.sub.T at a top surface (32) of the film that is significantly greater than a bottom dopant concentration N.sub.B at a bottom surface (34) of the film. This non-uniform doping profile provides an SOI device that operates in a fully-depleted mode, yet permits thicker films without a significant degradation of sub-threshold slope.
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: August 12, 1997
    Assignee: Motorola, Inc.
    Inventors: Kevin M. Klein, Wen-Ling M. Huang, Jun Ma
  • Patent number: 5482878
    Abstract: Insulated gate field effect transistors (10, 70) having process steps for setting the V.sub.T and a device leakage current which are decoupled from the process steps for providing punchthrough protection, thereby lowering a subthreshold swing. In a unilateral transistor (10), a portion (37, 45) of a dopant layer (25, 30) between a source region (48, 51) and a drain region (49, 52) serves as a channel region and sets the V.sub.T and the device leakage current. A halo region (34, 39) contains the source region (48, 51) and sets the punchthrough voltage. In a bilateral transistor (70), both a source region (83, 86) and a drain region (84, 87) are contained within halo regions (75, 74, 79, 81). A portion (76, 82) of a dopant layer (25, 30) sets the V.sub.T and a leakage current, whereas the halo region (75, 79) sets the punchthrough voltage.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: January 9, 1996
    Assignee: Motorola, Inc.
    Inventors: Vida I. Burger, Michael H. Kaneshiro, Diann Dow, Kevin M. Klein, Michael P. Masquelier, E. James Prendergast