Patent · US Active

Optimally driving non-uniform clock mesh loads

US11022998B2 · kind B2 · utility

1Cited by

4References

20Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Matthias Ringe · Lörrach, DE
Andreas H. A. Arp · Nufringen, DE
Michael V. Koch · Ehningen, DE
Fatih Cilek · Eppelheim, DE
Thomas Makowski · Pfullingen, DE

Key dates

Filing date	Oct 12, 2018
Grant date	Jun 1, 2021
Priority date	—
Expiry date	Oct 30, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06F2119/12
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

According to one or more embodiments of the present invention, a computer-implemented method includes determining, for a first sector from multiple sectors of a clock mesh of a semiconductor circuit, a set of mesh wires. The method further includes generating tapping point candidates, selecting a first combination of tapping points, and performing an analog electrical simulation of a clock signal. The simulation includes feeding the clock signal into the clock mesh via the first combination of tapping points via a clock signal transmitter, and measuring delays for the clock signal to reach a set of measuring nodes. The maximum delay from the measured delays is selected, and, in response to the maximum delay being less than a previous delay value, the first combination of tapping points is used to connect sector buffers from the first sector to the clock mesh.

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