Test device for electrical testing of a unit under test, as well as a method for production of a test drive

A method for producing a test device for electrical testing of another unit, the method comprising:

• installing contact elements in the form of pins on a contact head in an array to form a contact pin arrangement, wherein each contact element includes a first end which faces away from a test plane accommodating the unit under test and a second end which faces toward the unit under test, the contact elements extend in an axial direction;
• forming an electrical connecting apparatus comprising axial contact elements which include contact surfaces which are arrayed and placed on the apparatus and each face toward to make touching contact with a respective first end of a contact element of the contact head;
• mechanical processing all of the contact surfaces by mechanical planar processing in a single mechanical processing procedure for defining on all of the contact surfaces a planar contact surface which is planar in and of itself and so that all of the contact surfaces are planar with respect to each other and thereby planar with respect to the unit under test.