| 摘要 |
PURPOSE:To enable multilayer print coils to be easily produced with high reliability, by connecting each conductor facing each other through an insulating sheet through a through hole formed on the insulating sheet and by rolling the sheet in or folding it up. CONSTITUTION:Spiral conductors 2a and 2b constituting coil portion are formed on both sides of an insulating sheet 1 so that they may be in spiral in the same direction as seen from each side, and so that a pair of conductors 2a and 2b laminated each other when rolled in or folded up may be in spiral mutually in the opposite detection. Each conductor 2a and 2b facing each other through the insulating sheet 1 is connected through a through hole 3 formed on the insulating sheet 1 at the edge of the inside circumference of these conductors 2a and 2b. Each conductor 2a and 2b is laminated either by rolling the insulation sheet 1 in or by folding it up in the predetermined position of a folding up position 4 and the coil portion is formed by each conductor 2a and 2b.
|
