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:
Oct. 06, 2009
Filed:
Jun. 01, 2007
Applicant:
Detlef Wilhelm, Regensburg, DE;
Inventor:
Detlef Wilhelm, Regensburg, DE;
Assignee:
Infineon Technologies AG, Neubiberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/739 (2006.01); H01L 31/0328 (2006.01); H01L 31/0336 (2006.01); H01L 31/072 (2006.01); H01L 31/109 (2006.01);
U.S. Cl.
CPC ...
Abstract
A heterojunction bipolar transistor: The transistor may a collector layer, a base layer and an emitter layer. The transistor may include a dielectric material being disposed over the base layer. The base layer may be a SiGe base layer.