The Variable Geometry Automated Universal Array Layout System (VGAUA)

This paper presents the Variable Geometry Automated Universal Array (VGAUA) fully automatic physical layout program for gate array LSI which uses a single unique metallization pattern to personalize the array design. This fully automatic layout system minimizes the cost and time required for IC design and can be used over a range of array sizes from 800 to 3500 gates. Each array size has its own unique, optimized, fixed geometry design for all levels except the programmable metallization level.