Patent ID: 6486689
Filing Date: 2002-11-26
Classification: G01R

Abstract:
A probe device for use in a circuit board testing apparatus for testing conductivity of a circuit board, the probe device comprising:a holder mountable to a circuit board testing apparatus, the holder including: a holding member made of an electrically insulating material; an electrode rod mounted in the holding member, the electrode rod extending in a direction inclined with respect to a normal line of the circuit board; and a socket removably attached on the electrode rod; a contact needle attachable to the holder, and operable to resiliently bend in a specified direction immediately after coming into contact with a circuit board, the contact needle being fixedly attached on the socket, a restraining member for restraining the contact needle, wherein the restraining member is made of an electrically conductive material, and includes a restraining portion for permitting the contact needle to come into contact with the restraining member when the contact needle is not in contact with the circuit board, and permitting the contact needle to go away from the restraining member when the contact needle bends after coming into contact with the circuit board, further comprising: a connecting wire for connecting the restraining member with the electrode rod; and a detector for detecting the current in the connecting wire.