Patent ID: 8330481
Filing Date: 2012-12-11
Classification: G01R

Abstract:
1. A probe assembly for testing semiconductor devices formed on a wafer, comprising: a circuit board including a circuit pattern formed therein and pads formed thereon; a base layer formed on the top surface of the circuit board and having insertion holes each of which corresponds to each of the pads, wherein the base layer is formed of the same semiconductor material as the wafer; a conductive adhesive formed in the insertion holes; and probe pins each of which has a connectable root vertically inserted into the corresponding insertion hole and mechanically fixed by the conductive adhesive, a laterally elongated beam bent at right angle to the connectable root and extended lengthwise in parallel with and at a distance from the surface of the circuit board, and a contact tip extended upwardly from one end of the laterally elongated beam, being opposite to the connectable root, the probe pins being electrically connected to the pads.