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:
Feb. 08, 2005
Filed:
Nov. 30, 2000
Christian Herzum, Poecking, DE;
Ulrich Krumbein, Rosenheim, DE;
Karl-heinz Mueller, Velden, DE;
Infineon Technologies AG, München, DE;
Abstract
A semiconductor circuit arrangement includes a circuit element embedded in a semiconductor substrate of a first conductivity type in an integrated manner and is provided with at least one gate electrode and first and second terminal electrodes. The first terminal electrode includes a well region that is embedded in the semiconductor substrate and is of a second conductivity type which is opposite the first conductivity type. A sub-well region is embedded in the well region of the first terminal electrode and is of the second conductivity type and has a higher doping than said well region. The sub-well region is embedded in the surface of the substrate and ends without reaching a well region of the gate electrode which is of the first conductivity type.