Test fixture for electronic components

Abstract

A test fixture for facilitating connection between the test leads of a diagnostic device and a pin grid array, dispersion via, or other multi-leaded electronic components mounted on a printed circuit boards. A base is provided of a nonconductive material having holes for spring loaded test pins. In the center of the fixture is a threaded rod which attaches the fixture onto a small threaded stud attached to the printed circuit board. The screw attachment is designed so that the fixture first screws onto the metal stud with light finger pressure. A nested screw arrangement utilizing a left hand threaded part then presses the fixture against the printed circuit board, compressing the test pins for good contact. The portion of the mechanism used for pressing the fixture against the printed circuit board is isolated by a bearing from the part that attaches to the threaded stud so that it exerts no torque on the threaded stud in the printed circuit board, thus preventing possible damage or wear on the stud, and misalignment of the fixture in relation to the component leads or dispersion vias.

Dependencies are inferred from the claim text.