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:
Sep. 29, 2015
Filed:
Jul. 08, 2014
Synopsys, Inc., Mountain View, CA (US);
Zhengtao Yu, Cary, NC (US);
SYNOPSYS, INC., Mountain View, CA (US);
Abstract
Systems and techniques for multiple-instantiated-module (MIM)-aware pin assignment are described. An aggregate cost function can be determined, wherein the aggregate cost function is aggregated across all instances of an MIM for placing a pin at a particular location on the boundary of the MIM. The aggregate cost function can then be used by a pin assignment engine to place the pin in the MIM. A pin assignment engine can place one pin at a time, or place multiple pins at a time by trying to optimize the aggregate cost over multiple pins. Some embodiments can propagate pin-alignment constraints through one or more instances of one or more MIMs in the circuit design layout, and then perform pin assignment while observing the pin-alignment constraints. In some embodiments, pin assignment can be performed on MIMs in decreasing order of the number of pin-alignment constraints that are imposed on the MIMs.