ri - do conductor and thin-shaped hiyu - zu null for thin-shaped hiyu - zu

摘要

PROBLEM TO BE SOLVED: To secure quick operation for a long time by a low melting-point fusible alloy piece connected between the tip surfaces of a pair of band-shaped lead conductors each of which is made by forming a copper conductor on a tip surface of a nickel band-shaped body and by sealing the low melting-point fusible alloy piece with a flat insulator. ;SOLUTION: A copper conductor part 22 of a band shaped lead conductor 2 made by forming the copper conductor 22 on the tip surface of a nickel band-shaped body is brought into contact with the back face of an insulating plate 1 and a swelled part 220 is exposed to the surface; a low melting-point fusible alloy piece 3 is connected between the exposed copper conductor parts of a pair of the band-shaped lead conductors by means of welding or the like. Then, the contact part of the insulating plate 1 and the copper conductor parts 22 are bonded together. The low melting-point fusible alloy piece 3 coated with flux 4 is sealed with an insulating film 5 and the insulating plate 1. In this case, since the parts other than the tip surface of the band- shaped lead conductor 2 (the part of the copper conductor 22) is made of nickel, the surfaces exposed to external heat can be maintained as a pure nickel base with little creation of oxide film for a long time. Thereby, the generated heat can be effectively transmitted to the low melting-point fusible alloy piece 3.;COPYRIGHT: (C)1999,JPO