Patent ID: 6724207
Filing Date: 2004-04-20
Classification: G01R

Abstract:
An improved structure composite-type test fixture consisting of a base, a probe board, as well as a plurality of probes and probe barrels, wherein the said probe board is situated on the upper extent of the said base and has a plurality of holes drilled in its upper surface that are aligned at the bottom surface with the connection points of a circuit board unit under test, with the holes of the said probe board providing for the entry of the said probe barrels and the said probes utilized to examine the various connection points of the said circuit board unit under test, the features of which are: a stack planar is postured flush against the upper surface of the said probe board, the said stack planar having plurality of drilled through-holes that are aligned with the said probe board holes; the said plurality of probes are each respectively inserted into the through-holes of the said stack planar, of which the tips are in a range of different diameters and size specifications, the top extremities protrude from the upper surface of the said stack planar, and the distal extremities consist of a single specification insert section that fit into the said probe barrels; each said probe barrel has an internally disposed spring, the said spring consisting of an upper block at the leading end and a wire connected to the trailing end such that after the said probe barrel is sleeved over the exterior of the said spring, the said trailing end is clipped to it and, furthermore, a copper pin terminates the trailing end of the said wire from the said probe barrel, thereby enabling the direct insertion of the said copper pin into the flat cable of a circuit tester.