Patent ID: 7449902

Claim:
A probe system, comprising: a test unit for transmitting and receiving a test signal that is required for testing a test semiconductor device; a probe tool comprising a securing unit and a chuck, wherein the chuck is suitable for loading the test semiconductor device; and a probe apparatus, installed on the securing unit of the probe tool, for transmitting the test signal from the test unit to the test semiconductor device on the chuck of the probe tool, so as to test the electrical properties and functions of the test semiconductor device, wherein the probe apparatus comprises: 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 form the center to any capacitor is larger than a distance form 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 form the center to any relay is larger than a distance form the center to any pogo pad.