摘要 |
PURPOSE:To allow automatic adjustment by machines, by removing a coil forming electrode in a spiral form by cutting to adjust the inductance using a removal amount by cutting. CONSTITUTION:A lead-out electrode 14 is formed on a substrate 6 next to form an insulator 10. Next, the coil forming electrode is superposed thereon. This coil forming electrode and lead-out electrode 14 are connected at a connection part 9 at the center of the insulator 10. The coil forming electrode is removed by cutting in a spiral form from the outer boundary to form a spiral adjustment groove 12 for a spiral coil 13. The spiral adjustment groove 12 is formed until the inductance reaches a fixed value. |