Semiconductor integrated circuit

Abstract

Abstract PURPOSE:To remarkably enlarge the range of the automatic arrangement wiring program by a method wherein wiring channels are arranged between lines of unit cells in addition to the wiring channels arranged between each row of conventional unit cells. CONSTITUTION:The unit cells 11 are regularaly arranged in matrix form, and the wiring channels 12 are provided between each row of these cells 11. A wiring channel 13 is provided to the direction rectangular to the wirings 12 between lines of every fixed number of the unit cells 11. It follows that a chip laid out by two-step method contains cells in the sum of the number contained in each block, and accordingly the limitation that the automatic arrangement wiring program has can be practically eliminated.

Inventors

• 👤 Yuko Ogawa
• 👤 小川　祐子

Bibliographic Details