Automatic routing system with variable width interconnect

US8479139B1 · kind B1 · utility

Assignee

• Pulsic Limited · GB

Inventors

• Graham Baldsdon · Llantrisant, GB
• Jeremy Birch · Bristol, GB
• Mark J. Williams · San Francisco, US
• Mark Waller · Bristol, GB
• Tim Parker · Shrewsbury, US
• Fumiaki Sato · Kariya, JP

Key dates

• Filing date: Jul 9, 2010
• Grant date: Jul 2, 2013
• Expiry date: Oct 29, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F2119/06
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A system automatically routes interconnect of an integrated circuit design using variable width interconnect lines. For example, a first automatically routed interconnect may have a different width from a second automatically routed interconnect. The system will vary the width of the interconnect lines based on certain factors or criteria. These factors include current or power handling, reliability, electromigration, voltage drops, self-heating, optical proximity effects, or other factors, or combinations of these factors. The system may use a gridded or a gridless (or shape-based) approach.