SMD 94v0 LED Light Circuit Board Assembly Thickness 0.4mm To 4.0mm
Custom Aluminium Pcb Led Lighting 94v0 Pcb Board oem smd led pcba
Types of Aluminum PCB:
There are a number of types of aluminum PCBs which are used in many
applications based on their construction and design. However, the
main purpose of all the aluminum PCBs is almost the same; providing
heat dissipation solutions for applications involving high
temperature. Following are the main types of aluminum PCBs.
1. Hybrid Aluminum PCB
In hybrid aluminum construction, non-thermal material is processed
and refined separately before it is applied to the thermal
materials with an aluminum base.
The most common practice is developing 2 layers or 4 layers
structure that comprises of FR4 material normally.
A non-thermal material that is bonded with thermal material and the
aluminum base provides rigidity and helps in the dissipation of
heat.
This non-thermal bonding is preferred over using all thermal
materials because it features less cost and encompasses efficient
thermal conductance over regular FR4 products.
No heat sinks or assembly steps are required for the development of
this product.
Through-hole components can be easily adjusted using component
windows on the aluminum base.
This helps in passing the cables and connectors through the
substrate. Also, the seal created by the solder fillet eliminates
the need for costly adapters.
2. Multilayer Aluminum PCBs are very common in power supply
products and come with multiple layers of thermally conductive
dielectrics.
These materials are very useful when they are combined with one or
more layers of circuitry in which thermally conductive dielectric
is buried between the layers with the help of blind vias which also
act as a signal or thermal vias.
Single-layer construction of these designs is not very effective,
however, when they come with more complex designs they provide an
ideal solution for many applications involving heat dissipation.
3. Through-Hole Aluminum PCB
When it comes to most complex constructions, a single layer of
aluminum is back-filled and pre-drilled with before applying
lamination, forming a Core of multilayer constructions.
Thermal bonding materials are then used to laminate the thermal
materials on both sides of the aluminum.
Once lamination is done, drilling is applied to the assembly.
In order to maintain proper electrical insulation, the plated
through holes created as the result of drilling must pass through
aluminum clearances.
PCB Item | Manufacture Capacity |
Copper thickness | 0.5oz, 1oz, 2oz, 3oz and 4 oz |
Dielectric Thickness (to Substrate) | 0.4mm,0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm,2.0mm, 3.0mm and 3.2mm |
Finished Board Thickness | 0.4mm To 4.0mm |
Thickness Tolerance | +/-10% |
Aluminum Machining | Drilling,Tapping,Milling,Routing, Die-Punching,break-off tab
available |
Min. Finish hole size | 0.25mm |
Max.working voltage | 2.5kVDC(0.075mm Dielectric), 3.75kVDC (0.15mm Dielectric) |
Min.Track Width | 0.2mm (8mils) |
Min.Track gap | 0.2mm (8mils) |
Min. SMD pad pitch | 0.2mm (8mils) |
Surface Finishing | HASL, HASL Leadfree, Immersion gold, Flash gold, OSP |
Soldermask color | White, Black, others Available |
Legend color | Black, White, others Available |
Etest | YES |
RohsL | YES |
FAQ:
Q1: 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.
Q2: What about the transportation and delivery date?
A: Normally,we use international express(such as,Fedex,DHL,TNT) to
deliver samples and small volume orders. For large mass order, we
can arrange shipping by sea.
