18 Years Printed Circuit Board PCB Manufacturer with LF-HASL Finish
How to get quick quotation?
Step 1 Please send us Gerber file with these format: .CAD / .Gerber / .PCB / .DXP / .P-CAD, etc | ||||||||||||||||||||
Step 2 Also please provide us the below details for quick quotation: | ||||||||||||||||||||
Board material: Fr - 4 / CEM - 1 / CEM - 3 / 22F / Fr - 1 / others |
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Material brand: SY / KB / Rogers (optional) | ||||||||||||||||||||
Material Specification:High Tg / copper based / aluminum based or others (optional) | ||||||||||||||||||||
Board thickness: 0.1 - 6.0 mm | ||||||||||||||||||||
Copper thickness: 0.05 Oz - 8 Oz ( 17 um - 288 um ) | ||||||||||||||||||||
Surface Treatment: OSP / ENIG / HASL / Lead Free HASL / Immersion Tin / Immersion Sin | ||||||||||||||||||||
Color of solder mask and silk print: Green / red / blue / black / white / yellow ,etc | ||||||||||||||||||||
Board size and quantity | ||||||||||||||||||||
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SAMPLE: |
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-- We employ 70 professional engineers to ensure our high quality products.
Department | Headcount |
Electronic Eng. | 13 |
R&D Eng. | 15 |
PE Eng. | 10 |
CAM Eng. | 26 |
MI Eng. | 6 |
Now send us your inquiry, and you will be replied within 8 hours!
Comparison of PCB Surface Finish
As we all know, copper is easily oxidized when exposed in the air, which is not good for welding with the electronics components. Therefore, we need to protect the PCB copper by cladding a special film. And we will compare 4 different surface finish as below to make you understand more clearly:
Surface Finish Advantage Disadvantage
OSP Good welding Performance; Smooth Surface; RoHS; Cheap Short-time Storage
HASL(Hot Air Solder Leveling) Good welding Performance; Long-time storage; Cheap Unsmooth Surface; not RoHS compliance
Lead Free HASL Long-time storage; RoHS Unsmooth Surface; a little expensive
ENIG(Immersion Gold) Good welding Performance; Smooth Surface; RoHS Expensive