Probe apparatus and method for measuring electrical...

Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element

Reexamination Certificate

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C324S750190, C324S750220

Reexamination Certificate

active

07940065

ABSTRACT:
A probe apparatus includes a first stage, a second stage, a third stage and an image pickup. A Z position measuring unit measures a Z direction position of the mounting table and has a Z scale extending in the Z direction and a reading unit for reading the Z scale. A computation unit obtains a calculated contact position between the probes and the electrode pads of the substrate to be inspected based on images picked up by the image pickup with respect to a coordinate position on coordinates of a driving system which includes a Z direction position and X and Y direction positions measured by a measuring unit for measuring X and Y direction positions of the mounting table. A correcting unit corrects the Z direction position of the contact position based on the change amount thereof for a next contact operation.

REFERENCES:
patent: 6111421 (2000-08-01), Takahashi et al.
patent: 6297656 (2001-10-01), Kobayashi et al.
patent: 6906546 (2005-06-01), Tanioka et al.
patent: 7405584 (2008-07-01), Fujita et al.
patent: 7719297 (2010-05-01), Takabe et al.
patent: 8-250558 (1996-09-01), None
patent: 2004-152916 (2004-05-01), None
patent: 10-0754543 (2007-09-01), None
Korean Office Action issued Nov. 11, 2010, in Patent Application No. 10-2009-0007583 (with English-language translation).

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