| 摘要 |
PROBLEM TO BE SOLVED: To provide a small capacitor element in which an input/output electrode and a common electrode as a ground electrode are not short-circuited. SOLUTION: Two capacitor electrodes 21-1 and 22-1 are formed on one principal surface of a dielectric board 20, while they are made to face each other and further each one end of them are extended too an end surface side opposite to each other, of the dielectric board 20. Meanwhile, a common electrode 24 that faces these two capacitor electrodes 21-1 and 22-1 is formed on the other principal surface. In a capacitor element constituted in this way, an insulation layer 30 is formed on the other principal surface of the dielectric board 20 except for the part of the common electrode 24, and further input/ output electrodes 28 and 29 connected to the capacitor electrodes 21-1 and 22-1 are formed in the insulator layer 30.
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