Patents by Inventor Maureen F. Grimaldi

Maureen F. Grimaldi 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).

  • Method for forming a base link in a bipolar transistor
    Patent number: 5374568
    Abstract: A method for forming an improved base link for a bipolar transistor is provided. The wall where the base link (44) is formed is substantially vertical (32,34). An oxide mask (24) is use during etching of the polysilicon layer (18) that provides the wall, instead of a conventional photoresist mask. The preferred method is compatible with manufacturing BiCMOS devices.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: December 20, 1994
    Assignee: Motorola, Inc.
    Inventors: Wen-Ling M. Huang, Shrinath Ramaswami, Maureen F. Grimaldi