Patent ID: 6563332
Filing Date: 2003-05-13
Classification: G01R

Abstract:
A checker head comprising:a pin including a tip division configured to contact a test pad provided on an inspected object, and a rear division connected to the tip division; a leading wire electrically connected to the rear division of the pin; and a laminated body comprising a board made from an insulation material with rigidity, the board including a forward side, a rear side, a hole extending through the board from the forward side to the rear side, the pin being movably inserted into the hole, the tip division of the pin projecting from the forward side, the rear division of the pin projecting from the rear side, and an elastic insulation layer provided on the rear side of the board and having a through hole aligned with the hole, the rear division of the pin and the leading wire being inserted into the through hole, the elastic insulation layer being configured to be elastically deformed to apply force to the pin in a forward direction to press the tip division to the test pad when force is applied to the pin in a backward direction to retract the tip division.