ROHS SMD 5630 2835 Prototype PCB Assembly LED PCBA Circuit Board
Aluminum PCB Circuit Board ROHS 2835 LED SMD 5630 PCBA LED PCB
Manufacturing Difficulties of Aluminum PCB:
The manufacturing process for nearly all aluminum PCBs is essentially the same. Here we will discuss the major manufacturing processes, the difficulties and their solutions.
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Copper Etching: the copper foil used in Aluminum PCBs is comparatively thicker. If the copper foil is over 3oz however, the etching requires width compensation. If it is not according to the demand of the design, the trace width will be out of tolerance after etching. Therefore the trace width compensation should be designed accurately. The etching factors need to be controlled during manufacturing process.
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Solder Mask Printing: due to the thick copper foil there is a difficulty in solder mask printing of aluminum PCB. This is because if the trace copper is too thick then the image etched will have a large difference between trace surface and base board and solder mask printing will be difficult. Therefore, the two-time solder mask printing is used. The solder mask oil used should be of good quality and in some cases the resin filling is done first and then solder mask.
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Mechanical Manufacturing: the mechanical manufacturing process involves mechanical drilling, molding and v-scoring etc. which Is left on internal via. This tends to reduce electrical strength. Therefore, the electric milling and professional milling cutter should be utilized for low-volume manufacturing of products. The drilling parameters should be adjusted to prevent burr from generating. This will help your mechanical manufacturing.
| PCB Capactity |
| Base Material | FR-4, CEM-3, aluminum |
| Layers | 1-22 layers |
| Max Panel | 1550mm*800mm |
| Copper Thickness | 0.5oz, 1oz, 2oz, 3oz,4oz |
| Dielectric Thickness | 0.05mm, 0.075mm, 0.1mm,0.15mm,0.2mm |
| Board Core Thickness | 0.4mm,0.6mm, 0.8mm, 1.0mm, 1.2mm,1.5mm, 2.0mm, 3.0mm and 3.2mm |
| Board Thickness | 0.4mm - 4.0mm |
| Thickness Tolerance | +/-10% |
| Aluminum Machining | Drilling, Tapping, Milling, Routing, Die-Punching, Break-off tab available |
| Min Hole | 0.2 mm |
| Max Working Voltage | 2.5kVDC(0.075mm Dielectric), 3.75kVDC (0.15mm Dielectric) |
| Min Track Width | 0.2mm (8mil) |
| Min Track Gap | 0.2mm (8mil) |
| Min SMD Pad Pitch | 0.2mm (8mil) |
| Surface Finishing | HASL lead free, Immersion Gold, Immersion Silver |
| Solder Mask Color | Green, Blue etc |
| Legend Color | Black, White etc |
| E-test | Yes |
| Certificate | UL / ROHS / ISO9001 |
Applications:
1. Indoor out door decoration.
2. Architectural and boutique atmosphere lighting.
3. Street lamp,Spotlight.
4. Emergency & security, advertisement sign lighting.
5. Holiday Decoration.
FAQ:
Q1. Do you have MOQ limited?
A: We don’t have any MOQ limited, the minimum order we accept is 1pcs. .
Q2. How can I get a sample to check your quality?
A: After price confirmation,you can place orders for samples for your testing and evaluation.
Q3: How about your supply capacity?
A: Our supply capacity is around 2000sqm each day. where our 25 000 sqm factory space hosts R&D, marketing, logistics and procurement operations.
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