Patent ID: 7372287

Claim:
A semiconductor device testing apparatus for testing a first type semiconductor device having a first external terminal group and a second external terminal group and operatingly using a part of the first external terminal group, a second type semiconductor device having the same external terminal array as that of the first type semiconductor device and operatingly using all of the first external terminal group, and a third type semiconductor device having the same external terminal array as those of the first and second type semiconductor devices and operatingly using all of the first and second external terminal groups, characterized in that: a device interface board is provided with a first contact instrument and a second contact instrument each having a first contact terminal group corresponding to the first external terminal group and a second contact terminal group corresponding to the second external terminal group so that any of the first, second, and third type semiconductor devices can be connected to the first contact instrument and the second contact instrument; bridging lines are connected between the contact terminals of the first contact terminal group of the first contact instrument and corresponding contact terminals of the second contact terminal group of the second contact instrument; one end of each said bridging line is connected to each said driver output pin of a corresponding IO channel of the first IO channel group provided in pin electronics in association with the first contact instrument; the other end of each said bridging line is connected to each said comparator input pin of the corresponding IO channel of the first IO channel group; and each said contact terminal of the first contact terminal group of the second contact instrument is connected, using different connection lines, to each said driver output pin and each said comparator input pin of a corresponding IO channel of the second IO channel group provided in the pin electronics in association with the second contact instrument.