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.
Patent No.:
Date of Patent:
Oct. 16, 2012
Filed:
Jun. 27, 2008
Emrah Acar, Montvale, NJ (US);
Bhavna Agrawal, Ennetbaden, CH;
Peter Feldmann, New York, NY (US);
Ying Liu, Austin, TX (US);
Steven G. Walker, Pleasantville, NY (US);
Emrah Acar, Montvale, NJ (US);
Bhavna Agrawal, Ennetbaden, CH;
Peter Feldmann, New York, NY (US);
Ying Liu, Austin, TX (US);
Steven G. Walker, Pleasantville, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A solution for analyzing a circuit using initial charge information is provided. In particular, one or more nodes in a design for the circuit is initialized with an initial charge. The charge can comprise a non-equilibrium charge, thereby simulating the history effect, the impact of a charged particle, electro-static discharge (ESD), and/or the like. Operation of the circuit is then simulated over a set of input cycles based on the initial charge(s). To this extent, the non-equilibrium initial condition solution enables the state of the circuit to be controlled and solves the initial system based on these values. This capability is very useful to condition the circuit at a worst-case, best-case, and/or the like, status. Further, in one embodiment of the invention, a set of equations are provided to implement the non-equilibrium initial charge analysis, which provide a more efficient initialization of the circuit than current solutions.