May 26, 2020 by Sophia Zeng
This is the design guidelines for aluminium core circuits, want to know more PCB design guidelines,contact us!
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What is ‘’Aluminum Board”?
Aluminum PCB is the most common type of all Metal Core PCB (MCPCB) also known as IMS (Isolated Metal Substrate). Aluminum Board are a unique metal-based copper clad laminate excellent thermal conductivity, high mechanical strength and dimension stability.
A copper foil is laminated onto an aluminium base using a prepreg.
Normally, this variant only has drill holes for fastenings.
Copper foils are laminated onto both sides of an aluminium core using prepreg. The PCB can be through-plated.
Completed PCBs are press-moulded to an aluminium carrier using a prepreg. Benefit: Multilayers can also be used (only single-sided SMD). Disadvantage: Poor heat dissipation, as the heat has to be dissipated through the entire PCB.
Technical data
• Thickness of the aluminium core: 0,5–2,0 mm
• Copper thickness: 0.5OZ–8OZ
• Thermal conductivity: Standard materials: 1-3W/m.k, Specified materials : 4-12W/m.k
• minimum drill hole diameter PCB (PTH): ≥ 0,2 mm
• minimum drill hole diameter PCB (NPTH): ≥ 1,0 mm
• minimum drill hole diameter for aluminium: ≥ 1,0mm
• Min distance Drill to Drill: > 1,0 mm
• minimum router diameter: ≥ 1,6 mm
• Surfaces: HAL, HAL free lead, OSP, ENIG (not recommended!)
• Machining:Produced like standard PCBs in multiples or individually, as well as being milled and scored.If any other questions, you can send emails to [email protected] and tell us what you want to know.
This is Sophia Zeng from Shenzhen
