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. 21, 2017
Filed:
Sep. 11, 2015
Qualcomm Incorporated, San Diego, CA (US);
Ankita Nayak, San Diego, CA (US);
David Anthony Kidd, San Diego, CA (US);
Paul Ivan Penzes, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Techniques for power-density-based clock cell spacing and resulting integrated circuits (ICs) are disclosed herein. In one example, the techniques determine power-usage density for different types of clock cells, as power-usage density relates to heat and IR droop. With the power-usage density for each type of clock cell determined, the techniques assign a keep-out region for each type of clock cell that is not fixed for all types of clock cells. These regions are instead based on the heat and IR droop corresponding to estimated power-usage density for each type of clock cell. Clock cells are then placed in a layout of an IC. The resulting IC has clock cells spaced sufficiently to reduce heat and IR droop while concurrently having excellent timing closure and performance.