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.

Date of Patent:
May. 06, 2014

Filed:

Oct. 18, 2011
Applicants:

Venkat Ananthan, Cupertino, CA (US);

Prashant B. Phatak, San Jose, CA (US);

Inventors:

Venkat Ananthan, Cupertino, CA (US);

Prashant B. Phatak, San Jose, CA (US);

Assignee:

Intermolecular, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/32 (2006.01);
U.S. Cl.
CPC ...
H01L 27/3295 (2013.01);
Abstract

Dual shadow mask design can overcome the size and resolution limitations of shadow masks to provide capacitor structures with small effective areas. The capacitor structures have bottom and top electrode layers patterned using shadow masks, sandwiching a dielectric layer. The effective areas of the capacitors are the overlapping areas of the top and bottom electrodes, thus allowing small area sizes without subjected to the size limitation of the electrodes. The dual shadow mask design can be used in conjunction with high productivity combinatorial processes for screening and optimizing dielectric materials and fabrication processes.


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