Patents by Inventor Glenn F. Guhman

Glenn F. Guhman 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).

  • Optical element having regions of different refractive indices for refraction of light transmitted therethrough and wherein the regions form a refractive lens and method of fabricating the same
    Patent number: 5808806
    Abstract: An optical device having a variable index of refraction across its surface includes a light transmissive material with a plurality of regions in the light transmissive material. Each region has an index of refraction which is different from the remainder of the material. The regions may be arranged in the surface of the material such that the density of the regions on the surface varies across the surface. Each region may be a bore, including a hole that extends through the light transmissive material. Variations in the density of the regions or bores as well as the depth and shape of the bores may be utilized to create variations of the refractive index within the light transmissive material. The regions form a refractive lens.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: September 15, 1998
    Assignee: International Business Machines Corporation
    Inventors: Glenn F. Guhman, Michael Ray, Theodore R. Touw
  • Method of fabricating semiconductor device
    Patent number: 5643435
    Abstract: The present invention encompasses a semiconductor processing device having a processing chamber in which is positioned an electrolyte oxygen pump assembly and tubing for transferring an oxygen containing gas from outside the reaction chamber to within the interior of the electrolyte oxygen pump assembly and tubing for removal of the oxygen depleted gas from within the interior of the electrolyte oxygen pump assembly. In addition, the semiconductor processing tool may further have heating elements for heating a semiconductor substrate within the processing chamber independently from heating of the electrolyte.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: July 1, 1997
    Assignee: International Business Machines Corporation
    Inventors: Glenn F. Guhman, Madhukar L. Joshi
  • Reaction chamber having in situ oxygen generation
    Patent number: 5611898
    Abstract: The present invention encompasses a semiconductor processing device having a processing chamber in which is positioned an electrolyte oxygen pump assembly and tubing for transferring an oxygen containing gas from outside the reaction chamber to within the interior of the electrolyte oxygen pump assembly and tubing for removal of the oxygen depleted gas from within the interior of the electrolyte oxygen pump assembly. In addition, the semiconductor processing tool may further have heating elements for heating a semiconductor substrate within the processing chamber independently from heating of the electrolyte.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: March 18, 1997
    Assignee: International Business Machines Corporation
    Inventors: Glenn F. Guhman, Madhukar L. Joshi
  • Optical elements having regions of different indices of refraction and method of fabricating the same
    Patent number: 5585968
    Abstract: An optical device having a variable index of refraction across its surface includes a light transmissive material with a plurality of regions in the light transmissive material. Each region has an index of refraction which is different from the remainder of the material. The regions may be arranged in the surface of the material such that the density of the regions on the surface varies across the surface. Each region may be a bore, including a hole that extends through the light transmissive material. Variations in the density of the regions or bores as well as the depth and shape of the bores may be utilized to create variations of the refractive index within the light transmissive material.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: December 17, 1996
    Assignee: International Business Machines Corporation
    Inventors: Glenn F. Guhman, Michael Ray, Theodore R. Touw