Patent ID: 8378705
Filing Date: 2013-02-19
Classification: G01R,H05K

Abstract:
1. A probe card that electrically connects a semiconductor wafer and a circuit structure that generates a signal to be output to the semiconductor wafer, by using a conductive probe that is extendable in a longitudinal direction, the probe card comprising: a wiring substrate comprising a ceramic substrate having a coefficient of thermal expansion of 3.0×10 one or more thin-film wiring sheets stacked on a first surface of the ceramic substrate by an adhesive layer, a thin film multilayer wiring sheet disposed on a second surface of the ceramic substrate opposite the first surface by an adhesive layer, a reinforcing substrate disposed atop the thin film multilayer wiring sheet and substantially along an entire surface area thereof; and a probe head on which a plurality of probes is arranged in accordance with wiring on the thin-film wiring sheet, which holds individual probes while preventing the probes from coming off and allowing both ends of each probe to be exposed, and which is stacked on the wiring substrate while allowing one end of each probe to be brought into contact with the thin-film wiring sheet, wherein, the probe card does not include a space transformer.