FPCB Technology Roadmap

Item Capability Min trace width& space Single side 0.038 & 0.038 mm ( 1.5 mil & 1.5 mil ) Double side 0.050 & 0.050 mm ( 2 mil & 2 mil ) COF Chip on Flex 0.02 & 0.02 mm ( 0.8 mil & 0.8 mil ) Min Hole size CNC Drilling 0.15 mm ( 6mi l) Punching Hole 0.5 mm ( 20 mil ) Multi-layer FPC Max Layer 12 Layer Rigid-flex FPC Max Layer Mass production: 16 layers / Pilot run: 22 layers Item Capability SMT Capability Connector Min Pitch 0.4 mm Passive Component Min0201 IC Bonding Capability Min Pitch 40 um ( 1.6 mil ) Surface finish Tin/Lead Electroplating H.A.L Immersion Tin Hard Gold Electroplating Soft Gold Electroplating Immersion Gold O.S.P General Tolerance Item Capability Conduct Width General Special +/- 0.05 mm +/- 0.03 mm Hole Diameter +/- 0.1 mm +/- 0.05 mm Outline Dimension +/- 0.3 mm +/- 0.1 mm Accumulated Pitch +/- 0.1 mm +/- 0.05 mm Punching Hole to Hole +/- 0.1 mm +/- 0.05 mm Hole to Outline Edge +/- 0.15 mm +/- 0.07 mm Center of Conduct to Outline Edge +/- 0.15 mm +/- 0.07 mm Roundness +/- 0.1 mm   General Tolerance Item Capability Assembly Accuracy Coverlay Pre-lamination General Special PSA Assembly +/- 0.5 mm +/- 0. 3 mm Stiffener Assembly +/- 0. 5 mm +/- 0. 3 mm Fold Assembly +/- 0. 5 mm   Gold finger Exposure Area +/- 0. 5 mm +/- 0. 3 mm General Tolerance Item Capability Silk Screen Thickness   General Special Silver Paste 5-15 um   Solder Mask 10-20 um   ZIF Area +/- 0.05 mm +/- 0.03 mm FPC Thickness +/- 0.05 mm +/- 0.03 mm Reliability Item Capability Peeling Strength IPC-TM-650 2 . 4 . 9 Flexible Endurance JIS C50168 . 7 Bending Resistance IPC-TM-650 2 . 4 . 3 JIS C6013 Open-Close Lifetime 0~150℃ , 20 time/minute Based on Customer’s Requirement Reliability Item Capability Metal Dome Life Test Force : 120g , 180 time/minute Based on Customer’s Requirement Solder Float Resistance IPC-TM-650 2 . 4 . 13 Dimensional Resistance IPC-TM-650 2 . 2 . 4 Resin Flow IPC-TM-650 2 . 3 . 17 Reliability Item Capability Thermal Shock IPC-TM-650 2 . 6 . 7 Chemical Resistance IPC-TM-650 2 . 6 . 3 JIS C5016 7 . 6 Insulation Resistance IPC-TM-650 2 . 6 . 3 JIS C5016 7 . 6 Withstanding Voltage IPC-TM-650 2 . 5 . 7 Salt Spray IEC 68-2-11