Mapping of gate arrays

US5818728A · kind A · utility

Assignee

• Chip Express (Israel) Ltd. · IL

Inventors

• Uzi Yoeli · Haifa, IL
• Meir Janai · Haifa, IL
• Zvi Orbach · Haifa, IL

Key dates

• Filing date: Mar 15, 1996
• Grant date: Oct 6, 1998
• Expiry date: Mar 15, 2016

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10D84/907

Abstract

This invention discloses a gate array device, useful either as a configurable gate array device or a compact gate array device, comprising an array of two-gate logic cells arranged in columns, a metal grid interconnecting said logic cells into clusters of macrocells, said grid comprising a bottom metal layer and at least one metal layer disposed over the bottom metal layer, power and ground lines formed of said bottom metal layer, extending generally parallel to said columns and a routing grid interconnecting said clusters of macrocells, said routing grid comprising parallel metal tracks crossing said columns of logic cells, and wherein no more than two of said parallel metal tracks are employed to connect to each logic cell.