Patents by Inventor Roderick K. Watts

Roderick K. Watts 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: 5948216
    Abstract: The present applicants have discovered a method for making thin films comprising tantalum oxide that enhances the dielectric constant with or without TiO.sub.2 doping. Specifically, applicants have discovered sputtering Ta.sub.2 O.sub.5 in an oxygen-rich ambient at a temperature in excess of 450.degree. C. and preferably in excess of 550.degree. C., produces a new crystalline phase thin film having enhanced dielectric properties.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: September 7, 1999
    Assignee: Lucent Technologies Inc.
    Inventors: Robert J. Cava, Shang Y. Hou, Jueinai Raynien Kwo, Eric W. Seelig, Roderick K. Watts
  • Patent number: 5478776
    Abstract: The invention is directed to a process for fabricating a device with a junction thereon with a depth of 0.06 microns or less. The substrate also has a silicon dioxide material thereon. A dopant source is applied over a junction on the substrate. The substrate is then rapid thermal annealed to drive the dopant source into the substrate. The dopant source is then removed from the substrate using an etchant that does not contain a significant amount of HF.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: December 26, 1995
    Assignee: AT&T Corp.
    Inventors: Henry S. Luftman, Roderick K. Watts
  • Patent number: 5101454
    Abstract: A light source, such as an LED, is provided with a multifaceted reflector to facilitate coupling of emitted light into an optical waveguide such as an optical fiber. In a preferred embodiment, a conventional LED fabricated on one side of a transparent substrate is provided with a series of integral concentric reflecting rings on the opposite side of the substrate. The rings reflect light diverging from the LED toward the central axis of an optical fiber light.
    Type: Grant
    Filed: February 20, 1991
    Date of Patent: March 31, 1992
    Assignee: AT&T Bell Laboratories
    Inventors: Greg E. Blonder, Robert S. Freund, Roderick K. Watts, Robert C. Wetzel
  • Patent number: 4407933
    Abstract: In a fabrication sequence for VLSI MOS devices, an advantageous alignment mark for a wafer to be directly processed by electron beam lithography is made of tantalum disilicide protected by a silicon nitride layer.
    Type: Grant
    Filed: June 11, 1981
    Date of Patent: October 4, 1983
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: David B. Fraser, Roderick K. Watts
  • Patent number: 4292576
    Abstract: A method of aligning an x-ray mask to a pattern on a semiconductor slice utilizing an infrared light source and an alignment pattern pair on the mask and slice to automatically and precisely position the x-ray mask on the semiconductor slice.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: September 29, 1981
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Roderick K. Watts