Patent ID: 6570393
Filing Date: 2003-05-27
Classification: G01R

Abstract:
An automatic electrical test equipment for providing predetermined test voltages for a device under test including essentially coplanar test points, said test equipment including means for moving a device under test at a predetermined attitude in a direction which is substantially perpendicular to a plane containing said test points and at a predetermined rate, said device under test including test points, each facing, and aligned with, a corresponding test equipment contact, said test equipment further including a corresponding pad engaged by each contact during test to provide a different voltage level to said contacts, comprising:a) a first elongated contact and a second elongated contact, each elongated contact having a first end and a second end, the second end of each said contact engaging a different test equipment pad, wherein each contact pad has a different voltage, and the first end of said first contact and second contact extending different predetermined distances from said test equipment toward a device under test, the different predetermined distances of the extensions of the first end of said first contact and the first end of said second contact providing a predetermined interval between the time the first end of the first contact and the first end of the second contact are engaged by their respective facing test points; and b) means for supporting said first and second contacts and permitting predetermined forces generated by moving a device under test into engagement with said first ends of said first and second contacts to deflect the first and second ends of said first and second contacts.