| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a configuration of such heat-conducted insulating material as getting conductive when heated, together with its heating method. SOLUTION: On an insulating substrate 10, pillar-like conductive materials 13 are evenly formed with no contact to each other, and such patterns 11 and 12 of a capacitor electrode, a resistor, an inductor, etc., are formed on the ceramics. The insulating substrate 10 is formed of, for example, ceramics, glass- epoxy resin, silicon, while the patterns 11 and 12 formed of, for example, such conductor as Cu. The pillar-like conductive material 13 comprises, for example, such alloy as Sn-Pb group, Sn-Ag group, Sn-Sb group, Sn-Bi group, Sn-Zn group, Sn-Cu group, In-Ag group, and Ag-Pd group. When the pillar-like conductive material 13 is irradiated with a laser light 15 as indicated with a laser irradiation mark 14, the pillar-like conductive material 13 is heated and melted, so that the pillar-like conductive material 13 are connected each other, for conduction between the pattern 11 and the pattern 12. When this is applied to a trimming part, adjustment is possible at both insulation and conduction while conventionally it was made in insulated condition.</p> |
