Patent ID: 6301971
Filing Date: 2001-10-16
Classification: G01N

Abstract:
Apparatus for testing integrity of a bond between a semiconductor device and an electrical conductor thereof, the apparatus comprising a baseplate having two cantilever arms in a plane and extending from the baseplate in substantially a same direction and having free ends, a moving mass fixed to the free ends of said arms and supported solely thereby, and measurement means to measure a force deflection characteristic of said arms on movement of said moving mass relative to said baseplate in the plane of said arms, wherein said arms are of unequal length, the moving mass having a test datum on one side of a longer of said arms, a shorter of said arms being on another side of the longer arm, and the arms being proportioned such that a small deflection of said arms results in movement of said test datum essentially perpendicular to the direction of extension of said arms.