General specification for multilayer PCB in Cojoin |
|
Layer Count |
4-32 layers |
Board thickness |
0.40-6.0mm |
Laminate type |
High performance FR4, halogen-free FR4, low loss and low Dk materials |
Max base copper thickness |
6oz(inner layer),6oz(out layer) |
Min finished through hole size |
0.15mm(6mil) |
Max panel size |
508*610mm |
Min trace width/spacing |
3/3mil(0.075/0.075mm) based on 1/2oz and 1oz thick copper |
Min width of solder mask bridge |
Base copper≤1 oz: 4mil(Green), 5mil(Other color), 8mil( on copper area)Base copper2 oz-4 oz: 6mil, 8mil( on copper area) |
Min drill size |
0.2mm |
Surface treatment |
HASL Lead free,ENIG(AU:0.025-0.125UM,NI:2-12UM), Immersion Tin(TIN:0.8UM-1.2UM)、Immersion silver(SILVER:0.1UM-0.3UM)、OSP、Hard gold(AU:0.1UM-2UM)、ENIG+OSP,ENIG+Gold finger(AU:0.025-1.5UM,NI:2-12UM),Hard gold+Goldfinger,Immersion silver+Goldfinger,Immersion Tin+Gold finger,Flash Gold,Peelable mask,Carbon ink |