Automatic generation of wire tag lists for a metal stack

US9092591B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Charles J. Alpert · Cedar Park, US
• Robert M. Averill, III · Wappingers Falls, US
• Eric Jason Fluhr · Round Rock, US
• Zhuo Li · Austin, US
• Tuhin Mahmud · Austin, US
• Jose L. P. Neves · Poughkeepsie, US
• Stephen T. Quay · Austin, US
• Chin Ngai Sze · Austin, US
• Yaoguang Wei · Austin, US

Key dates

• Filing date: Apr 10, 2014
• Grant date: Jul 28, 2015
• Expiry date: Apr 10, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F30/394
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Mechanisms are provided for pruning a layer trait library for use in wire routing in an integrated circuit design process. The mechanisms receive a plurality of wirecodes and a metal stack definition. The mechanisms generate a verbose layer trait library based on all possible combinations of the wirecodes and layers of the metal stack definition. The mechanisms generate a pruned layer trait library by pruning the verbose layer trait library to remove redundant layer traits from the verbose layer trait library. In addition, the mechanisms store the pruned layer trait library for performing wire routing of an integrated circuit design.