Patent ID: 7859282

Claim:
An electrical connecting apparatus comprising: a supporting member; a flat plate-like probe base plate arranged to be spaced from one surface of said supporting member, having one surface opposed to said one surface of said supporting member and the other surface opposed to said one surface, and having provided thereon multiple probes electrically connected with a tester and tips of said probes abutting on electrical connecting terminals of a device under test undergoing an electrical test by said tester; a securing portion formed on said one surface of said probe base plate and provided with a screw hole opened at the top portion; a generally cylindrical spacer maintaining a distance from said one surface of said supporting member to the top face of said securing portion; a screw member tightening said supporting member and said probe base plate with a space in accordance with the length of said spacer; and a means for restricting movement of said spacer in the axial direction in relation to said supporting member, wherein said spacer has a head portion whose underside is mounted on the other surface of said supporting member and a body portion communicating with said head portion at one end, arranged to pass through a through hole formed in said supporting member, and whose other end is arranged to abut on the top face of said securing portion, wherein said screw member is inserted from the head portion side of said spacer to pass through said spacer, and wherein the tip end of said screw member projecting from said body portion of said spacer is screwed in said screw hole of said securing portion.