Leiterplatten-Prüfeinrichtung mit Folienadapter

摘要

Printed circuit board testing device with contacts (3) arranged in a pre-determined basic grid pattern, that are connected to a computer (1) and whose number corresponds to at least the highest possible number of test points (6) on the printed circuit board (4) to be tested, with a pressure device (10) for the printed circuit board and with an adapter arrangement (8, 11, 9, 18) for electrically connecting the test specimen-specific test points (6) of the printed circuit board (4) to be tested to the grid-orientated contacts (3) of the basic grid pattern of the printed circuit board testing device (2), whereby the adapter arrangement has a flexible adapter foil (8), that carries on the side facing the basic grid pattern preferably regularly-arranged lands (13) and on the side facing the test specimen, test specimen-specific lands (12), that are in direct contact with the test points (6) of the printed circuit board to be tested, whereby the mutually-assigned lands are electrically interconnected on both sides of the adapter foil by plated-through holes (19) and, if necessary, associated printed conductors (16, 17). In order to provide compensation for manufacturing deviations of the very small test points (6) from the reference position, provision is made for the adapter foil (8) and the printed circuit board (4) to be tested, to be retained in the adapter arrangement so that they can be displaced relative to each other in their plane, whereby the adapter foil can also be elastically elongated or stretched in its plane.