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:
Jan. 04, 2005
Filed:
Nov. 20, 2003
Bernhard Kowalski, München, DE;
Andreas Felber, München, DE;
Valentin Rosskopf, Pöttmes, DE;
Till Schlösser, Dresden, DE;
Jürgen Lindolf, Friedberg, DE;
Bernhard Kowalski, München, DE;
Andreas Felber, München, DE;
Valentin Rosskopf, Pöttmes, DE;
Till Schlösser, Dresden, DE;
Jürgen Lindolf, Friedberg, DE;
Infineon Technologies AG, Munich, DE;
Abstract
A transistor array has vertical FET transistors each connected to a storage capacitor of a memory cell array. Gate electrode strips, which form word lines, of the transistors are located on both sides of active webs running parallel to one another and are connected to a superimposed metal plane by word line or CS contacts. To insulate these word line contacts from the other elements of the transistor array and of the cell array, the word line contacts are located in deep trenches that are introduced into the webs.