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:
Nov. 10, 2020
Filed:
Sep. 11, 2019
International Business Machines Corporation, Armonk, NY (US);
Jose Neves, Poughkeepsie, NY (US);
Adam Matheny, Hyde Park, NY (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Techniques for latches include ordering latches by connectivity from a source to sinks. An iterative process is performed which includes selecting a selected latch in the connectivity, drawing a bounding box around the selected latch to encompass input nets and output nets, and using a two-dimensional optimizer to find a new placement location for selected latch by solving for optimization criteria. The optimization criteria includes maximizing slack on the input and output nets of the selected latch, minimizing an absolute difference of the slack between the input output nets, and identifying the new placement location within the bounding box that balances maximizing the slack on input and output nets versus minimizing the absolute difference of the slack between input nets and output nets. The current location of the selected latch is updated between the source and sinks to be the new placement location identified in the bounding box.