一边下奶一吃敷视频53分钟,人人妻人人妻人人片色av,男女猛烈xx00免费视频试看,精品一区国产
 
WPL Board Size     560mm x 640mm
 
Finish Thickness      0.3~3.5mm
 
PCB Layer Count     2~16 Layers
 
Finish Copper     HOZ~6OZ
 
Aspect Ratio      10:1
 
Impedance Requirement      90~100∮10%
 
the Tolerance of Board Thickness  ∮10%
 
Min Finish Hole      0.15mm Laser 0.075mm
 
Hole Position Alignment Extent       ∮2mil
 
Min Trace / Gap of inner layer/ Gap of inner layer    3/3mil
 
Min Trace / Gap of outer layer   3/3mil
 
Min Ring size       4mil
 
Min. S/M Opening ( One Sided )   2mil
 
Min Solder Bridge Design    2mil
 
Plug Hole Size    ∝0.7mm
 
Thickness of Gold Plating   2 ~ 40"
 
the thickness of immersion Gold   2~8u"
 
Width/Height of Silkscreen      5mil/25mil
 
the Tolerance of CNC/PUNCH    ∮0.1mm
 
O/S Test Conditon      50-300V1M-100M
 
CAM Operation System    Orbotech GenesisCAM350
 
surface finish  ENIG Immersion Silver Immersion TinHASL OSP, Gold Finger etc
 
Base Material   CEM-3FR-4HFHigh TgAl laminatecopper laminateTeflon,etc
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Copyright © Digital Printed Circuit Board Co., Ltd 2011
No 298 Chaxing Road Chashan Town Dongguan City Guangdong province
TEL0769-86485066   FAX0769-86485055