Patent ID: 7592623

Claim:
A semiconductor device, comprising: a substrate; a semiconductor element formed on the substrate; and a wiring connection testing structure which is formed on the substrate and which includes an electron beam irradiation area where an electron beam is irradiated so that a wiring connection is tested; wherein the wiring connection testing structure includes an insulation layer formed on the substrate; a plurality of first pattern wirings which are formed on the insulation layer in parallel and which include the electron beam irradiation area; a second pattern wiring formed between the first pattern wirings; a third pattern wiring which is formed on a lower layer of the second pattern wiring and which is connected to the second pattern wiring, the third pattern wiring formed in a direction perpendicular to the first pattern wiring; and a fourth pattern wiring which is formed on an upper layer of the third pattern wiring, is connected to the third pattern wiring, and has the electron beam irradiation area; wherein a plurality of the second pattern wirings is formed between each two immediately adjoined first pattern wirings.