Patent ID: 7049838
Filing Date: 2006-05-23
Classification: G01R

Abstract:
1. A testing apparatus to test a semiconductor device, the testing apparatus comprising: a plurality of probes; and a print substrate; wherein the print substrate includes a plurality of holes wherein respective ones of the plurality of probes are inserted, each hole comprising on an inside wall thereof a respective electrically conducting portion, and wherein the print substrate includes substrate wiring electrically connected with each electrically conducting portion; wherein each probe includes an upper plunger and an elastic member disposed below the upper plunger, and the upper plunger further includes a contact portion to contact the semiconductor device and a conductor portion in contact with the elastic member inside each hole; and wherein the conductor portion comprises a slanted lower surface contacting the elastic member; whereby the upper plunger, when pressed, is laterally displaced toward the electrically conducting portion by a restitution force of the compressed elastic member, so as to press the upper plunger into electrical contact with the electrically conducting portion.