Patent ID: 7768284

Claim:
A test apparatus for testing a semiconductor device having contact pads on its top and contact pads on its back, where the test apparatus comprising: a test printed circuit board having contact pads; a test socket mounted on the test printed circuit board, where the test socket has a locating seat for locating the top of the semiconductor device, and where the region of the locating seat contains internal through-contact elements through the test socket to the test printed circuit board in order to make an electrical connection between the contact pads of the top of the semiconductor device and the contact pads of the test printed circuit board; a stamp for pressing the semiconductor device onto the internal through-contact elements of the test socket; and where the test socket has external through-contact elements which are arranged outside of the locating seat and which make an electrical connection between contact pads on the test printed circuit board and contact pads on the back of the semiconductor device to be tested when the stamp is pressed on.