Patent ID: 7523436

Claim:
A semi-custom-made integrated circuit device comprising: a function layer formed with function blocks on a substrate; and a multi-layered metallization structure formed over said function layer, and including: at least one common wiring pattern layer having at least one wiring pattern connected to said function blocks and common to plural sorts of semi-custom-made integrated circuit devices; and a customized layer formed on said at least one common layer said customized layer unique to said semi-custom-made integrated circuit device and including: a lower metallization layer having a first pattern of wiring strips selectively connected to said function blocks and directed in certain directions parallel to one another, an upper metallization layer having a second pattern of wiring strips directed in directions perpendicular to said certain directions; and an inter-layered insulating layer inserted between said lower metallization layer and said upper metallization layer and having a third pattern of wiring plugs selectively connected between the wiring strips of said first pattern and the wiring strips of said second pattern, said wiring strips of said first pattern have a length such that said wiring strips of said first pattern are selectively connected at both ends thereof to said function blocks and said wiring strips of said second pattern.