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:
Feb. 10, 2009
Filed:
Sep. 27, 2006
Juergen Koehl, Well un Schoenbuch, DE;
Urich Kranch, Dettenbausen, DE;
Juerge Pilk, Sougart, DE;
Alexander Woerner, Bochingen, DE;
Helmut Zudrell, Willdberg, DE;
Juergen Koehl, Well un Schoenbuch, DE;
Urich Kranch, Dettenbausen, DE;
Juerge Pilk, Sougart, DE;
Alexander Woerner, Bochingen, DE;
Helmut Zudrell, Willdberg, DE;
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention relates to creating a layout of an electronic circuit from a netlist of interconnected components, wherein the components can be represented by planar geometric shapes in the layout. The advantages of the present invention are achieved by tightly coupling placement and routing. An initial placement of shapes of extended size is succeeded by a routing step that tries to create wires between shapes of reduced size. If that fails, it is tried to wire shapes of extended size instead. The wiring can be combined with a delta-placement of shapes within shapes of extended size such that wires connected to shapes of extended size also connect to the shapes.