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:
Dec. 10, 2002
Filed:
Jul. 03, 2001
Infineon, AG, Munich, DE;
Abstract
A dynamic random access memory includes memory cells arranged in rows and columns on the substrate and a plurality of connecting pillars, each associated with a memory cell. A bit line extends above the main area of the substrate and connects to each memory cell of a column. A first word line connects a first set of alternate memory cells of a row by a first subset of the plurality of connecting pillars. The first word line includes first parts arranged offset relative to the first subset of connecting pillars. A strip-shaped second part extends above the main area and adjoins the first parts of the first word line. A second word line connects to a second set of alternate memory cells of the row by a second subset of the connecting pillars. The second word line includes first parts arranged between mutually adjacent first word lines and offset from the second subset of the connecting pillars. Both the first and second word lines thus overlap but do not cover the connecting pillars. A strip-shaped second part extends above the main area in the first direction and adjoins the first parts of the second word line. The second part is above the first word line and the bit line.