PURPOSE: To eliminate an inter-winding layer short-circuit in a condition that a winding unit of laminated material, formed of conductive foil and an insulating layer is cut, so that a process of etching a cut section for eliminating the short- circuit is not provided after a cutting process.
CONSTITUTION: In a thin type coil formed by winding a laminated material, consisting of conductor foil and an insulating layer, cut into a predetermined thickness, a method is for manufacturing the thin type coil with surface roughness of a cut section set to 0.48 to 0.14μm and for manufacturing the thin type coil, having a process of obtaining a winding unit 1 by winding the laminated material consisting of the conductor foil and the insulating layer and a cutting process of obtaining the thin type coil by using a wire saw to cut the winding unit 1 into a predetermined thickness, to use a wire 4 of 0.08 to 0.20mm diameter and a #1200 to #6000 abrasive grain (9.5 to 2.0μm grain size).
MATSUYAMA TAIJI
AZUMA RIYUUSUKE
| JPH01268443A | 1989-10-26 | |||
| JPS61231852A | 1986-10-16 | |||
| JPH02197103A | 1990-08-03 | |||
| JPS6077648A | 1985-05-02 |