Disclosed are a connector for measurement of electric resistance, by which
necessary electrical connection is surely achieved even when a circuit
board to be inspected is large in area and has a great number of
small-sized electrodes to be inspected, and measurement is surely
performed with high precision, and which can be produced at a low cost,
and an electric resistance-measuring apparatus and an electric
resistance-measuring method for circuit boards, which make use of this
connector. The connector for measurement of electric resistance has a
first electrode sheet, an anisotropically conductive elastomer sheet
arranged on a back surface of the first electrode sheet and having
through-holes formed corresponding to the electrodes to be inspected, and
a second electrode sheet arranged on a back surface of the
anisotropically conductive elastomer sheet. The first electrode sheet has
an insulating sheet having through-holes formed corresponding to the
electrodes to be inspected, a plurality of ring-like electrodes each
formed on a front surface of the insulating sheet so as to surround the
through-hole, and junction electrodes formed on a back surface of the
insulating sheet, and the second electrode sheet has a plurality of core
electrodes for inspection arranged corresponding to the electrodes to be
inspected, and a plurality of core electrodes for connection arranged
corresponding to the junction electrodes.