Patent ID: 7336087

Claim:
Printed circuit board test device ( 1 ) comprising: a support device ( 4 ) receiving a circuit board ( 5 ) at latter's edge, said board being designed to receive electrical or electronic components ( 20 ) or being fitted with them, at least one needle ( 15 ) which is designed to make electrical contact with contact areas ( 21 ) on the circuit board ( 5 ) and which is connected to an electrical testing device ( 17 ), said needle ( 15 ) being obliquely arranged and adjustable in the direction of the needle by a needle drive ( 13 ) and where said needle drive is adjustable by means of at least one holding-fixture drive ( 8 ) in an adjustment plane ( 7 ) parallel to the circuit board ( 5 ), the drives ( 8 , 13 ) being controlled by a drive control ( 10 ) to steer the needle tip ( 18 ) onto a predetermined spatial coordinate, wherein a distance measuring device ( 25 , 13 ′) is provided to measure the distance between the adjustment plane ( 7 ) and the circuit board ( 5 , 5 ′) at least at one site and to transmit measured values to the drive control ( 10 ), said drive control being designed to correct—before electrical contact between the needle ( 15 ) and contact areas ( 21 ) takes place—the spatial coordinates of the contact areas ( 21 , 21 ′) by taking into account the measured distance values, wherein the device is designed to make the distance measurement prior to electrical testing; and wherein the device is designed to measure the distance at several sites of the circuit board ( 5 , 5 ′) and to derive from these measurements a distance profile of the circuit board ( 5 , 5 ′).