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  Artwork Design Rules
 
  Artwork Design Rules Low Cost High Cost
A Line Width 80 70
B Line to Line Pitch 160 140
C Coverlay Attachment Tolerance ¡¾150 ¡¾100
D Final Surface Electro Ni/Au
Ni : 3~8 Au : 0.3~0.8
Direct Gold(Electro) Min 0.8
Elect Sn/Pb 2~10
Immersion Tin Min 0.4