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. 24, 2009
Filed:
May. 11, 2005
Jakob Huber, Beyharting, DE;
Jakob Huber, Beyharting, DE;
Infineon Technologies AG, Munich, DE;
Abstract
A transistor assembly having a transistor includes a plurality of transistor regions, each of which has a vertical transistor structure having a collector semiconductor region, a base semiconductor region and an emitter semiconductor region, emitter contacting regions arranged above the transistor regions and base contacting regions connected to the base semiconductor regions via a polycrystalline semiconductor layer, wherein the polycrystalline semiconductor layer is structured such that the base contacting regions of transistor regions which are not part of the transistor are electrically isolated from base contacting regions of transistor regions which are part of the transistor.