Patent ID: 7986156

Claim:
A semiconductor device, comprising: a plurality of test elements formed in an array on a semiconductor substrate; an address signal generating portion that generates an address signal corresponding to each of the test elements; a digital-to-analog converter that receives the address signal other than through the plurality of test elements and converts the address signal into an analog signal and outputs the converted analog signal; wherein the address signal comprises an X-coordinate address signal and a Y-coordinate address signal; an X-coordinate switch that switches according to the X-coordinate address signal, and a Y-coordinate switch that switches according to the Y-coordinate address signal; wherein the digital-to-analog converter comprises a resistor string type digital-to-analog converter; and wherein a conductive type of transistors constituting the digital-to-analog converter is a same conductive type as a conductive type of transistors constituting the X-coordinate switch and the Y-coordinate switch.