Patent ID: 7298154
Filing Date: 2007-11-20
Classification: G01R

Abstract:
1. A probe apparatus suitable for testing a semiconductor device, comprising: a circuit board comprising a first surface and a second surface, each having a center respectively; a plurality of pogo pads disposed on the first surface in at least one ring arrangement with a center coinciding with the center of the first surface; a plurality of probe pins disposed on the second surface of the circuit board and electrically coupled to the pogo pads accordingly; a plurality of capacitors disposed outside the ring arrangement of the pogo pads on the first surface of the circuit board in a ring arrangement, wherein a center of the ring of the capacitors coincides to the center of the first surface, and a distance from the center to any capacitor is larger than a distance from the center to any pogo pad; and a plurality of relays disposed outside the pogo pads on the first surface of the circuit board in a ring arrangement and electrically coupled to the pogo pads and the capacitors, respectively, wherein a center of the ring of relays coincides with the center of the first surface, and a distance from the center to any relay is larger than a distance form the center to any pogo pad.