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:
May. 06, 2008
Filed:
Jun. 01, 2006
Applicants:
Achim Gratz, Dresden, DE;
Klaus Knobloch, Weixdorf, DE;
Franz Schuler, Dresden, DE;
Inventors:
Assignee:
Infineon Technologies AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/8238 (2006.01);
U.S. Cl.
CPC ...
Abstract
An explanation is given of, inter alia, a circuit arrangement containing a trench which penetrates through a charge-storing layer () and a doped semiconductor layer (). The trench simultaneously fulfils a multiplicity of functions, namely an insulating function between adjacent components, the patterning of the charge-storing layer and also the subdivision of doping layers of the semiconductor layer ().