Patents by Inventor K. R. Ramaprasad

K. R. Ramaprasad 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: 4882233
    Abstract: A conductive substrate for the deposition of material thereon which comprises an insulating layer upon said substrate, and a pluralitry of aperatures in said insulating layer containing conductive material formed from said substrate forming a plurality of metallic nucleating centers for the adherence of said material to said substrate.
    Type: Grant
    Filed: February 19, 1988
    Date of Patent: November 21, 1989
    Assignee: Chronar Corp.
    Inventor: K. R. Ramaprasad
  • Patent number: 4770716
    Abstract: Stabilization of energy sensitive semiconductor devices by forming initial electrodes which are exposed through an overlying layer of semiconductor, dipping the exposed electrodes in solutions containing specified chemicals, such as metallic ion solutions of nickel, cobalt, chromium and related metals, followed by rinsing, drying, and the final deposition of an overlying electrode by metallization.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: September 13, 1988
    Assignee: Chronar Corp.
    Inventor: K. R. Ramaprasad
  • Patent number: 4695331
    Abstract: Hetero-augmentation of semiconductor materials by reacting a mixture of (1) a gaseous precursor of a host semiconductor with (2) a gaseous compound of the host and a hetero atom. The host precursor is a semiconductor hydride or a mixture of hydrides, including those of silicon and germanium. The compound of the host and hetero-atom includes a silyl or germyl dopant or alloyant. Suitable dopants are phosphorous, arsenic, and nitrogen. Suitable alloyants are other semiconductors and nitrogen. The reaction can take place pyrolytically, by electrical discharge, or photochemically.
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: September 22, 1987
    Assignee: Chronar Corporation
    Inventor: K. R. Ramaprasad