Out-of-context feedback hierarchical large block synthesis (HLBS) optimization

US10885245B1 · kind B1 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Frank J. Musante · Poughkeepsie, US
• Nathaniel D. Hieter · Clinton Corners, US
• Alexander J. Suess · Hopewell Junction, US
• Ofer Geva · Hod HaSharon, IL

Key dates

• Filing date: Sep 11, 2019
• Grant date: Jan 5, 2021
• Expiry date: Sep 11, 2039

Classification

• Technology area (CPC —): General

Abstract

A system to develop an integrated circuit includes a latch identifier module to identify a first child latch placed at a first location in a first child macro of a parent macro and a second child latch placed at a second location in a second child macro of the parent macro. The second child latch is located away from the first child latch. The system further includes a latch location optimization module and a latch placement module. The latch location optimization module determines a target timing parameter threshold and determines a first actual timing parameter. The latch placement module changes the first location of the first child latch and/or the second location of the second child latch to generate an optimized parent macro based on the changed locations. The latch location optimization module re-executes the latch optimization process to determine a second actual timing parameter based on the changed locations.