简介 |
PROBLEM TO BE SOLVED : To provide a method for forming an electrode of a PTC element, capable of reducing interface resistance between a PTC element assembly and an electrode, the PTC element being manufactured using a semiconductor porcelain composition in which a part of Ba of BaTiO3 is substituted with Bi-Na.
SOLUTION : A method for forming an electrode of a PTC element includes a step of preparing a semiconductor porcelain composition represented by a composition formula : [(Bi-Na)x(Ba1-yRy)1-x][Ti1-zMz]O3 (where R represents at least one selected from among rare earth elements including Y, M represents at least one selected from among Nb, Ta and Sb) while the x, y and z satisfy relationships of 0
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