기술분야
FPCB 구조

| ITEM | SPEC | 
|---|---|
| Layers | 3~8 | 
| Base Material | Polyimide or Polyester | 
| Cover-lay | Polyimide or Polyester or Solder Mask | 
| Thickness | 0.2mm~0.8mm | 
| Line Width/Space | Normal Min, 0.07/0.07mm, Special Min. 0.06/0.06mm | 
| Conductor | 1/3oz, 1/2oz, 1oz, ED or RA Copper | 
| Surface finish | Electroless nikel immersion Gold, Direct Gold,soft gold, Hard Gold | 
| Stiffener | Polyimide, Glass epoxy, Steel use stainless | 
| Double coated tape | Coated Tape 3M 467 , 966 ,Sony D3410 , T4100 etc | 
| Min. through hole diameter | Bit Drill Via Normal Min. 0.02mm Special Min. 0.150mm | 
| Hole diameter tolerance | 10% | 
| Solder resist | Photo Solder Resist, Polyimide flim |