The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2009
Filed:
Jan. 19, 2005
Gerald Meinhardt, Graz, AT;
Jochen Kraft, Oberaich, AT;
Gerald Meinhardt, Graz, AT;
Jochen Kraft, Oberaich, AT;
Austriamicrosystems AG, Unterpremstatten, AT;
Abstract
For the production of an improved bipolar transistor comprising a low-resistance base terminal, a dielectric layer is deposited over the semiconductor substrate and is highly doped via an implantation mask. In a subsequent controlled thermal step, the dopant is then indiffused into the semiconductor substrate from the dielectric layer serving as a dopant repository. This gives rise to a low-resistance region with which the extrinsic base can be defined carefully.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile