Abstract: A socket for positioning and installing an integrated circuit on a circuit board includes multiple contacts mounted in a base, each contacts receiving one of the leads which extend from the sides of the integrated circuit. The contacts include a pair of engagement members which are spread apart by spreader members which are forced between the engagement members by operation of an actuating member which is slidably mounted on the base, thereby permitting installation of the leads within the contacts. Upon release of the actuating member, the contact engagement members return to their initial position and engage on opposite sides of the leads, thus providing an electrical connection between the contacts and the leads. The contacts include offset lips on the upper end thereof which permits the engagement surfaces to deflect without interference with adjacent contacts.

Abstract: A test contactor for establishing a releasable connection between terminals of an integrated circuit electronic module to be tested and a circuit board connected to test equipment includes a housing carrying a contact element for each terminal of the module. Each contact element includes a contact surface which is engaged by the corresponding terminal of the modules when testing is effected. The contact surface is connected to a pad which connects the contact element to the circuit board by a spring arm that is slidably engaged with the pad. Accordingly, as the contact element is deflected during testing, the spring arm slides along the pad, and the resiliency of the contact element restores itself it is initial condition when the module is removed. The spring arm provides the shortest possible electrical path between the contact surface and the pad, thereby assuring a high frequency response.