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:
Apr. 24, 2018

Filed:

Jul. 14, 2016
Applicant:

Taiwan Semiconductor Manufacturing Company Ltd., Hsinchu, TW;

Inventors:

Yu-Jen Chang, Taichung, TW;

Kuo-Nan Yang, Hsinchu, TW;

Jui-Jung Hsu, Hsinchu, TW;

Chih-Hung Wu, Hsin-Chu, TW;

Chung-Hsing Wang, Hsinchu County, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
G06F 17/505 (2013.01); G06F 17/5072 (2013.01); G06F 17/5077 (2013.01); G06F 17/5081 (2013.01); G06F 2217/82 (2013.01); G06F 2217/84 (2013.01);
Abstract

An integrated circuit (IC) design method is disclosed. The method includes: using a computer to perform synthesis upon a register transfer level (RTL) IC design to generate a gate level netlist; performing place and route (P&R) upon the gate level netlist to generate a layout; determining a sink current distribution information of the layout; and generating a voltage (IR) drop/electro-migration (EM) analysis result of the layout according to the sink current distribution information; wherein the layout includes a cell having a cell height that is N times higher than a single cell height, where N is an integer and greater than 1, and the cell corresponds to N power/ground (P/G) rail sets; wherein the sink current distribution information includes a proportion of a sink current flowing through each of the N power/ground (P/G) rail sets with respect to the cell when operated. Associated non-transitory computer-readable medium is also disclosed.


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