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:
Sep. 11, 2007
Filed:
Jul. 12, 2002
Applicants:
Albert Birner, Dresden, DE;
Matthias Goldbach, Dresden, DE;
Till Schlösser, Dresden, DE;
Inventors:
Assignee:
Infineon Technologies AG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/108 (2006.01); H01L 29/76 (2006.01);
U.S. Cl.
CPC ...
Abstract
The upper capacitor electrode of the trench capacitor is connected to an epitaxially grown source/drain region of the select transistor by a tubular, monocrystalline Si contact-making region. The gate electrode layer has an oval peripheral contour around the transistor, the oval peripheral contours of the gate electrode layers of memory cells arranged in a row along a word line forming overlap regions in order to increase the packing density.