ELECTRICAL CONNECTING APPARATUS
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United States of America Patent
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Issued Date -
Aug 21, 2008
app pub date -
Feb 4, 2008
filing date -
Feb 19, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
To restrain misregistration of tips due to change in temperature, an electrical connecting apparatus is used for connection of a tester, and electrical connection terminals of a device under test to undergo electrical test by the tester. The electrical connecting apparatus comprises a probe board having a plurality of probe lands on its underside; and a plurality of contacts having tip portions to be brought into contact with a base end portion fixed at the respective probe lands and the connection terminals of the device under test. The measure from the tip of each contact and the probe land ranges from 1.1 to 1.3 mm, and the coefficient of thermal expansion of the probe board is greater than the coefficient of thermal expansion of the device under test within the range from 1 to 2 ppm/.degree. C.
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