Patent ID: 7947514

Claim:
A semiconductor device production process comprising the steps of: a preparation step for preparing an SOI wafer that includes a silicon support substrate, an oxide film formed on the silicon support substrate, and a semiconductor layer formed on the oxide film; a device formation step for forming a plurality of semiconductor functional devices in the semiconductor layer such that said semiconductor functional devices have an insulation layer on their surfaces, and for forming a plurality of substrate contacts extending to the silicon support substrate through the semiconductor layer and the oxide film such that the plurality of substrate contacts are associated with the plurality of semiconductor functional devices respectively; a pad formation step for forming a plurality of external connection pads on the insulation layer such that the plurality of external connection pads are provided for the plurality of semiconductor functional devices respectively; a pattern formation step for forming a wiring pattern that connects the substrate contacts to the external connection pads such that the external connection pads are not connected to each other; a basic inspection step for measuring conductivity between at least two of said external connection pads; and an additional inspection step for replacing one of those external connection pads which have undergone said basic inspection step with another external connection pad and for measuring conductivity between the external connection pads after said replacement, if the conductivity measured in said basic inspection step is equal to or less than a predetermined value.