Patent ID: 7348597

Claim:
A test fixture assembly, comprising: an electronic package having an interface structure; wherein the interface structure includes a ball grid array having solderballs on a first surface of the electronic package and solder pads on a second surface, the solder pads being coupled within the package to the solderballs; a mock-up integrated circuit (IC), coupled to the solder pads for providing circuit connections; and a fixture board, coupled to the solderballs of the ball grid array of the interface structure; wherein the fixture board and mock-up IC both include high frequency probe pads exposed for providing a signal and ground point for high bandwidth test probing; and wherein each probe pad on the fixture board is coupled to a solderball of the ball grid array and at least one of the probe pads on the fixture board is not covered by the ball grid array and is exposed on the fixture board for probing without coupling through the ball grid array.