Patent ID: 6333635
Filing Date: 2001-12-25
Classification: G01R

Abstract:
A probe card for testing IC chips, said probe card comprising:a printed circuit board having test circuit patterns configured to test electrical characteristics of at least two integrated circuit chips, and at least one aperture extending therethrough sized to accommodate at least two of the integrated circuit chips to be tested;a plurality of probe pins for use in probing contact pads of the chips, said probe pins being electrically connected to the test circuit patterns of said printed circuit board, said probe pins comprising a first group of probe pins and a second group of probe pins;a fixing ring extending around said aperture of the printed circuit board, the first group of probe pins being fixed to and protruding from said fixing ring; and at least one fixing bridge traversing said fixing ring from one side thereof to the other, the second group of probe pins being fixed to and protruding from said fixing bridge,wherein the first group of probe pins and the second group of probe pins contact one of the integrated circuit chips in a straight line, andwherein the first group of probe pins comprises more than two pins.