Patent ID: 6861858

Claim:
A method for testing electronic devices, comprising: providing a ceramic substrate comprising multiple layers of ceramic plates having vias and interconnecting vertical and horizontal conductive lines, the ceramic substrate having a first planar surface facing on an electronic device to be tested and a second planar surface opposing and parallel to the first planar surface, the ceramic substrate having a plurality of vertical probes mounted on and extending from the first planar surface of the ceramic substrate and a plurality of contactors on the second planar surface of the ceramic substrate, wherein each of the probes electrically connects to corresponding contactors through the vertical and horizontal conductive lines; aligning the probes with I/O terminals of an electronic device to be tested; moving the electronic device and the probes together until all of the I/O terminals of the electronic device are presumed to be in contact with corresponding probes; continuing moving the electronic device and the probes together by a presumed safety distance to ensure good contact of all the I/O terminals of the electronic device with the corresponding probes; and holding the electronic device and the probes together until a testing process is complete.