Patent ID: 9519009
Filing Date: 2016-12-13
CPC Classification: G01R,H01L

Claim Text:
1. A prober comprising: a wafer chuck which holds a wafer on which multiple chips having an electrode in each surface are formed and has a conductive support surface which can come into contact with a back-surface electrode of a chip; a movement rotation mechanism which moves and rotates the wafer chuck; a head stage which holds a probe holding portion having a probe that comes into contact with a front-surface electrode of the chip and connects the front-surface electrode with a terminal of a tester to electrically inspect the chip; a stage member which has a conductive stage surface that is formed in parallel to the support surface and electrically connected with the support surface, and can move integrally with the wafer chuck; and a contactor which is disposed in a position facing the stage member and whose tip can electrically come into contact with the stage surface, wherein: the stage member is separated from the wafer chuck as a separate body, and the stage surface and the support surface are electrically connected through a wiring member; and the back-surface electrode of the chip is electrically connected with the tester through the wafer chuck, the wiring member, the stage member and the contactor.