Patent · US Expired

Method and apparatus for automated circuit design

US7178118B2 · kind B2 · utility

25Cited by
7References
63Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 21, 2004
Grant dateFeb 13, 2007
Priority date
Expiry dateJul 31, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F2119/12
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

Methods and apparatuses to automatically modify a circuit design (e.g., a synthesis solution) according to the sensitivity in design parameters with respect to the possible deviation in the subsequent implementation (e.g., placement and routing) of the circuit. In one aspect of the present invention, a method to design a circuit includes: determining likelihood of a design constraint being violated in an implementation of a first circuit design (e.g., a technology specific netlist with or without a placement solution); and, modifying the first circuit design to reduce the likelihood of the design constraint being violated. In one example, the implementation of the first circuit design includes a routing solution for implementing the first circuit design; and, the first circuit is modified through sizing an instance of a logic element, buffering a signal, load shielding for a signal, or other operations.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.