| 摘要 |
PURPOSE:To miniaturize the whole circuit device while increasing the speed of the circuit device by forming a region having an irregular logic circuit function and a region having an input-output circuit forming region and a regular logic function on one semiconductor substrate. CONSTITUTION:An irregular logic circuit forming region 2 forming an irregular logic circuit having an irregular logic circuit function and a regular logic circuit forming region 3 shaping a regular logic circuit having a regular logic circuit function are formed on a semiconductor substrate 1. Input-output circuit forming regions 4 to the regular logic circuit are shaped on both sides of the region 3, and a plurality of logic-signal input-output terminals 5 are formed to the peripheral section of the substrate 1. When the regular logic circuit is a read-only memory circuit, the regular logic circuit is constituted by a memory element 11 consisting of matrix-shaped transistors, metallic wirings 12 in the row direction and metallic wirings 13 in the line direction. When the regular logic circuit is a programmable logic array circuit, the circuit is constituted by matrix-aligned memory elements 21, an AND circuit 23, an OR circuit 24, etc. |
