COIL FILM FOR VIBRATION MOTOR AND THE METHOD THEREOF

摘要

A coil film for a vibration motor and a manufacturing method thereof are provided to increase the winding number of coil film and the cross section of each circuit pattern by adapting an additive method instead of a subtractive method. In a coil film for a vibration motor, the plurality of coil films is stacked inside the vibration motor. A plurality of circuit patterns(102) is formed on the surface of a pattern coil layer(100) with spiral structure. A dummy pattern is formed at an inner area(104) and a circumferential area(106) of the circuit pattern(102) divided by the spiral structure, and is electrically insulated from the circuit pattern(102).