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:
Dec. 11, 2012

Filed:

Jan. 26, 2011
Applicants:

Yasuko Tabata, Shiga, JP;

Akio Misaka, Osaka, JP;

Takehiro Hirai, Shiga, JP;

Hideyuki Arai, Toyama, JP;

Yuji Nonami, Shiga, JP;

Inventors:

Yasuko Tabata, Shiga, JP;

Akio Misaka, Osaka, JP;

Takehiro Hirai, Shiga, JP;

Hideyuki Arai, Toyama, JP;

Yuji Nonami, Shiga, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 31/23 (2006.01);
U.S. Cl.
CPC ...
Abstract

A semiconductor device includes a circuit portion including at least one real feature, and a plurality of dummy feature groups each including a plurality of dummy features spaced apart from each other by a first distance. The plurality of dummy feature groups are spaced apart from each other by a second distance larger than the first distance, and the circuit portion and the plurality of dummy feature groups are spaced apart from each other by the second distance.


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