MOTOR manufacturing specification [FPCB MULTY] 1. Layer : FPCB 4 layer 2. Application : motor 3. Thickness : FPCB 0.1T / MULTY 0.3T 4. L/S : 50 micrometer/50 micrometer 5. Drill : LASER DRILL 0.08 mm 6. ANNULAR RING : 42.5 micrometer 7. SPECIAL item for controlling : Outer layer [14 layers ANNULAR RING ]