Unbalance Rigid Flexible (FPCB+FR4) Double Side manufacturing specification: 1. Layer : 2 layer [Flexible 1 layer + Rigid 1 layer] 2-1-2 2. Application : Industrial Equipment 3. Thickness : 1.6T 4. Machine drill : min. 0.25 mm 5. Cu plating : hole min. 20 micrometer 6. L/S : 400 micrometer / 100 micrometer 7. PSR / COV : blue / black 8. Surface treatment : ENIG 9. Impedence layer : 1 L
