Patent ID: 7622936
Filing Date: 2009-11-24
Classification: G01R

Abstract:
1. A contacting device for touch contacting an electrical test specimen, the contacting device comprising: a contact head and; a connecting device; said contact head with said test specimen having electrically touch contactable test contacts, the positions of which are distributed across a testing surface and are determined by at least one guide element that belongs to said contact head and that is fastened to a holding device of said contact head; wherein said test contacts, on their side facing away from said test specimen, are to be brought into electrical touch contact with contact surfaces of said connecting device; wherein said guide element is composed of individual segments that each have a part of said testing surface and are each connected to at least one of said holding device and said connecting device by at least one fixed bearing; and wherein the sum of the temperature expansion coefficients of said guide element and holding device are at least approximately equal to the temperature expansion coefficient of said connecting device.