Patent ID: 7573279
Filing Date: 2009-08-11
Classification: G01R

Abstract:
1. A jig for Kelvin Test, comprising: a pair of probes, including a first probe and a second probe which are arranged in parallel in a socket comprised of insulating material, each probe including: a conductive tube; a conductive plunger, contained in at least one end side of the tube, and having a distal end part protruding outward from the tube in an axial direction of the tube, the plunger being brought into elastic contact with a common terminal of an electronic component to be tested, and a coil spring, contained in the tube, and elastically urging the plunger outward, wherein the first probe supplies electric current to the terminal, the second probe monitors electric voltage of the terminal, and a first cross section of the tube of the first probe which is perpendicular to the axial direction is greater than a second cross section of the tube of the second probe which is perpendicular to the axial direction; wherein a plurality of the terminals are arranged in a first direction on the electronic component to be tested, a plurality of the pair of probes are arranged in the first direction in the socket, and the first probes and the second probes are arranged alternately in the first direction.