Patent · US Active

Placement clustering-based white space reservation

US10223489B2 · kind B2 · utility

1Cited by

25References

20Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Harry Barowski · Balingen, DE
Ajith Kumar M. Chandrasekaran · Bengaluru, IN
Harald D. Folberth · Böblingen, DE
Joachim Keinert · Altdorf, DE
Sourav Saha · Sherghati, IN

Key dates

Filing date	Nov 30, 2016
Grant date	Mar 5, 2019
Priority date	—
Expiry date	Nov 30, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG06F30/398
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A system and method place unit-level components in a macro within a unit of an integrated circuit that includes two or more of the units that each include two or more of the macros. The method includes detecting white space in a congestion plot of the macro. The white space represents potential placement areas for the unit-level components. The method also includes performing wire reach analysis between sources and sinks on different sides of the macro to determine an allowable region for the unit-level components, and deriving a buffer and latch placement reservation area in which to place the unit-level components based on the white space and the allowable region.

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