| 
             板材  | 
            
             FR-4 / Hi Tg FR-4 / Lead free Materials (RoHS Compliant) /CEM-3, Aluminium, metal based  | 
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| 
             层数  | 
            
             1-16  | 
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             完成板厚  | 
            
             0.2 mm-3.8mm (8 mil-150 mil)  | 
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| 
             板厚  | 
            
             ±10%  | 
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| 
             铜厚  | 
            
             0.5 OZ-6OZ (18 um-210 um)  | 
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| 
             过铜孔尺寸  | 
            
             18-40 um  | 
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| 
             抗阻公差  | 
            
             ±10%  | 
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| 
             翘曲度  | 
            
             0.70%  | 
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| 
             可剥性  | 
            
             0.012"(0.3mm)-0.02 (0.5mm)  | 
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| 
             线路  | 
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| 
             最小线宽 (a)  | 
            
             0.075mm (3mil)  | 
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| 
             最小线距 (b)  | 
            
             0.1mm (4 mil)  | 
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| 
             最小孔  | 
            
             0.1mm (4 mil)  | 
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| 
             贴片螺孔 (a)  | 
            
             0.2 mm(8 mil)  | 
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| 
             BGA 孔(b)  | 
            
             0.2 mm (8 mil)  | 
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| 
             0.05mm  | 
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| 
             阻焊  | 
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| 
             最小阻焊桥宽 (a)  | 
            
             0.0635 mm (2.5mil)  | 
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| 
             阻焊公差 (b)  | 
            
             0.1mm (4 mil)  | 
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| 
             最小SMT盘间距 (c)  | 
            
             0.1mm (4 mil)  | 
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| 
             阻焊厚度  | 
            
             0.0007"(0.018mm)  | 
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| 
             孔  | 
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| 
             最小孔 (CNC)  | 
            
             0.2 mm (8 mil)  | 
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| 
             最小钻孔  | 
            
             0.9 mm (35 mil)  | 
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| 
             孔公差 (+/-)  | 
            
             PTH:±0.075mm;NPTH: ±0.05mm  | 
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| 
             空位公差  | 
            
             ±0.075mm  | 
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| 
             表面处理  | 
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| 
             有铅喷锡  | 
            
             2.5um  | 
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| 
             无铅喷锡  | 
            
             2.5um  | 
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| 
             沉金  | 
            
             镍 3-7um Au:1-5u''  | 
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| 
             抗氧化  | 
            
             0.2-0.5um  | 
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| 
             外形  | 
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| 
             拼版外形公差l (+/-)  | 
            
             CNC: ±0.125mm, Punching: ±0.15mm  | 
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| 
             斜度  | 
            
             30°45°  | 
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| 
             金手指脚  | 
            
             15° 30° 45° 60°  | 
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| 
             证书  | 
            
             ROHS, ISO9001, CE, UL certificate.  | 
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