Patents by Inventor Muriel Riet

Muriel Riet 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 of manufacturing a double-heterojunction bipolar transistor on III-V material
    Patent number: 6495869
    Abstract: The invention relates to a method of manufacturing a double heterojunction bipolar transistor (1) comprising successively at least one sub-collector layer, a collector layer, a base layer and a metallic layer (10) deposited on the said base layer; the said metallic layer (10) being extended towards a contact pad (110) of the base by an underetched metallic “air bridge” (100), characterized in that producing the said “air bridge” (100) includes the following steps: effecting a first localized etching under the said bridge, this first etching being selective so as to etch the sub-collector layer laterally; and effecting a second localized etching under the said bridge, this second etching being selective so as to vertically etch at least the collector layer.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: December 17, 2002
    Assignee: Alcatel
    Inventors: Sylvain Blayac, Muriel Riet, Philippe Berdaguer
  • Method of manufacturing a double-heterojunction bipolar transistor on III-V material
    Publication number: 20010015474
    Abstract: The invention relates to a method of manufacturing a double heterojunction bipolar transistor (1) comprising successively at least one sub-collector layer, a collector layer, a base layer and a metallic layer (10) deposited on the said base layer; the said metallic layer (10) being extended towards a contact pad (110) of the base by an underetched metallic “air bridge” (100), characterized in that producing the said “air bridge” (100) includes the following steps:
    Type: Application
    Filed: February 13, 2001
    Publication date: August 23, 2001
    Inventors: Sylvain Blayac, Muriel Riet, Philippe Berdaguer