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. 22, 2005
Filed:
Jun. 04, 2002
Applicants:
Michael Jacob, Yokohama, JP;
Uwe Wellhausen, Yokohama, JP;
Inventors:
Michael Jacob, Yokohama, JP;
Uwe Wellhausen, Yokohama, JP;
Assignee:
Infineon Technologies Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L027/108 ; H01L029/76 ; H01L029/94 ; H01L031/119 ;
U.S. Cl.
CPC ...
Abstract
An IC with memory cells arranged in a chained architecture is disclosed. The top local interconnect between the top capacitor electrodes and active area is achieved by using a strap. The use of a strap eliminates the need for additional metal layer which reduces manufacturing costs. Furthermore, sidewall spacers are used to isolate the strap from the different layers of the capacitors. The use of spacers advantageously enables the strap to be self-aligned.