Wafer probe station having environment control enclosure
First Claim
Patent Images
1. A probe station comprising:
- (a) a chuck including a chuck surface for supporting a test device;
(b) at least one support for a probe to contact said test device;
(c) an enclosure defining an upper aperture for receiving said support; and
(d) a conductive lower member conductively isolated from said chuck surface and slidably supported within said enclosure;
said lower member defining a lower aperture for said enclosure capable of relative lateral movement with respect to said upper aperture.
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Abstract
A wafer probe station is equipped with an integrated environment control enclosure substantially surrounding a supporting surface for holding a test device, such enclosure limiting fluid communication between the interior and exterior of the enclosure and preferably also providing EMI shielding and a dark environment. The limited communication between the interior and exterior of the enclosure is kept substantially constant despite positioning movement of either the supporting surface or probes. The positioning mechanisms for the supporting surface and probes each are located at least partially outside of the enclosure.
871 Citations
9 Claims
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1. A probe station comprising:
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(a) a chuck including a chuck surface for supporting a test device; (b) at least one support for a probe to contact said test device; (c) an enclosure defining an upper aperture for receiving said support; and (d) a conductive lower member conductively isolated from said chuck surface and slidably supported within said enclosure;
said lower member defining a lower aperture for said enclosure capable of relative lateral movement with respect to said upper aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification