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:
Nov. 05, 2019

Filed:

Sep. 06, 2017
Applicant:

Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;

Inventors:

Hui Yu Lee, Hsin-Chu, TW;

Hao-Tien Kan, Hsin-bei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
G06F 17/5081 (2013.01); G06F 17/509 (2013.01); G06F 17/5027 (2013.01); G06F 17/5036 (2013.01); G06F 17/5072 (2013.01); G06F 17/5045 (2013.01); G06F 2217/78 (2013.01); G06F 2217/82 (2013.01); Y02E 60/76 (2013.01); Y04S 40/22 (2013.01);
Abstract

A method includes providing a symbolic power distribution network (PDN) map for a PDN of an circuit design including at least a first mesh that includes a plurality of map nodes; modeling at least one parasitic component that is provided on a branch of the symbolic PDN map and a pair of current sources that are provided at two respective map nodes of the symbolic PDN map; providing a matrix equation based on an interrelated conduction behavior among the parasitic component and the pair of current sources, wherein the matrix equation includes a current source term representing the pair of current sources and an unknown variable term representing a voltage level of at least a map node of the symbolic PDN map; and based on the matrix equation, expanding the unknown variable term in a frequency-domain as a sum of plural mathematical components while keeping the current source term intact.


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