Patent ID: 7161347
Filing Date: 2007-01-09
Classification: G01R

Abstract:
1. A test head for a semiconductor integrated circuit tester, the test head comprising: a main support structure defining a device interface board location, and a contact support frame that is displaceable relative to the main support structure for engaging a device interface board at the device interface board location, the contact support frame comprising a first frame member having a first surface region that is directed towards the device interface board location and also having an opposite second surface region, a second frame member having a first surface region in spaced confronting relationship with the second surface region of the first frame member and also having an opposite second surface region, and a resilient mechanism effective between the first and second frame members for permitting the first frame member to move relative to the second frame member when force is applied to the second frame member at the second surface region thereof for displacing the contact support frame towards the device interface board location, and wherein the main support structure comprises a main support plate and a generally cylindrical outer frame attached to the main support plate, and the contact support frame is generally annular and is located within the outer frame and is coaxial therewith.