METHOD FOR BONDING A CONTACT

摘要

PCT No. PCT/JP82/00013 Sec. 371 Date Jul. 19, 1982 Sec. 102(e) Date Jul. 19, 1982 PCT Filed Jan. 14, 1982 PCT Pub. No. WO82/02621 PCT Pub. Date Aug. 5, 1982.The gap between upper and lower electrodes 1, 2 is measured at constant intervals of time while a contact 5 and a base 6 are pressed by the upper and lower electrodes under a constant pressure. Supply of an electric current to the upper and lower electrodes is controlled upon elapse of a predetermined interval of time after the gap has reached a maximum 18. The amount of metal melted out of a joining interface between the contact 5 and the base 6 is thus quantized to improve and stabilize the quality of joining between the contact 5 and the base 6.