pcb order prototype smt assembly
|Material||Laminate material||FR4, Alu, CEM3,Taconic,Rogers|
|Board cutting||Number of layers||1-58|
Min.Thickness for inner layers
(Cu thickness are excluded)
|Bow and twist||<7/1000|
|Copper weight||outer Cu weight||0.5-4 oz|
|inner Cu weight||0.5-3 oz|
|PTH hole tolerance||±0.002''(0.005mm)|
|NPTH Hole tolerance||±0.002''(0.005mm)|
|Plating||Min hole size||0.0008''（0.02mm）|
|Aspect ratio||20(5 :1)|
|Min solder mask clearance||0.003''(0.07mm)|
Surface Mount SMT PCB Assembly is one of the most popular electronic product assembly methods. It is a new generation of electronic assembly technology that compresses traditional electronic components into devices that are only a few tenths of a volume. Thereby achieving high density, high reliability, miniaturization, low cost and automation of production of PCB proofing electronic product assembly.
The assembly density is high, the size of the electronic product is small, and the weight is light. The volume and weight of the chip components are only about 1/10 of that of the conventional plug-in components. After the SMT is generally used, the volume of the electronic product is reduced by 40% to 60%, and the weight is reduced by 60%. 80%.
High reliability and strong anti-vibration ability. The solder joint defect rate is low.
High frequency characteristics are good. Reduced electromagnetic and radio frequency interference.
Easy to automate and increase productivity. Reduce costs by 30% to 50%. Save materials, energy, equipment, manpower, time, etc.