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. 28, 2019

Filed:

Aug. 31, 2016
Applicant:

Nec Corporation, Minato-ku, Tokyo, JP;

Inventors:

Ayuka Tada, Tokyo, JP;

Noboru Sakimura, Tokyo, JP;

Makoto Miyamura, Tokyo, JP;

Yukihide Tsuji, Tokyo, JP;

Ryusuke Nebashi, Tokyo, JP;

Xu Bai, Tokyo, JP;

Toshitsugu Sakamoto, Tokyo, JP;

Assignee:

NEC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 19/177 (2006.01); H01L 27/24 (2006.01); G06F 17/50 (2006.01); H01L 45/00 (2006.01);
U.S. Cl.
CPC ...
H03K 19/17748 (2013.01); G06F 17/505 (2013.01); G06F 17/5031 (2013.01); G06F 17/5081 (2013.01); H01L 27/2436 (2013.01); H01L 45/1206 (2013.01);
Abstract

An object of the present invention is to provide a method for effectively performing characterization for circuit verification by static timing analysis, of a programmable logic integrated circuit including a crossbar switch including a resistance-variable element, and a logic circuit logically configured with the crossbar switch, wherein: the programmable logic integrated circuit is divided into a plurality of leaf cells including a plurality of load circuits including a part of the crossbar switch, and a power supply element input to the crossbar switch; the leaf cell is divided into delay paths each including a base leaf cell and a correction leaf cell; and circuit verification is performed based on a delay information library in which a delay time for the base leaf cell and a correction delay for the correction leaf cell are integrated into a delay time for the leaf cell.


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