Aluminum PCB China Metal Core PCB
Metal Core PCB means the core (base) material for PCB is the metal, not the normal FR4, and currently the most common metal used for MCPCB manufacturer are Aluminum, Copper and steel alloy. Aluminum has good heat transferring and dissipation ability, but yet relatively cheaper; copper has even better performance but relatively more expensive, and steel can be divided into normal steel and stainless steel. It more rigid than both aluminum and copper, but thermal conductivity is lower than them too. People will choose their own base/core material according to their different application.
Aluminum Based PCBs are a unique metal-based copper clad laminate. These types of Printed Circuit Boards have good thermal conductivity, electrical insulation and very solid machining performance. These types of are typically fabricated with a metal base consisting of aluminum (most common) but can also be produced with copper.
Zapon: An Experienced Aluminum Circuit Boards Manufacturer
Zapon has been offering metal core PCB manufacturing services for over ten years. Our full feature aluminum circuit boards making capabilities and value-added options allow you to get high-quality PCBs done within budget. Aluminum printed by us are widely used for LED lighting, power equipment and automotive systems
Soldermask & Silkscreen
Depending on whether light is to be absorbed or reflected, you can select between black or white soldermask
Silkscreen colours of black and white are available in the aluminium core
Metal Core PCB Materials and Thickness
The metal core of the thermal PCB can be aluminum (aluminum core PCB), copper (copper core PCB or a heavy copper PCB) or a mixture of special alloys. The most common is an aluminum core PCB.
The thickness of metal cores in PCB base plates is typically 30 mil – 125 mil, but thicker and thinner plates are possible.
MCPCB copper foil thickness can be 1 – 10 oz.
Our Aluminum core PCB manufacturing capabilities
|Quality Grade||Standard IPC 2|
|Number of Layers||1-4 layers|
|Order Quantity||1pc – 10000+pcs|
|Lead Time||3days – 5weeks|
|Material||Aluminum core (Domestic 1060), Copper core, FR4 covering|
|Board Size||Min 6*6mm | Max 610*610mm|
|Board Thickness||0.8mm – 5.0mm|
|Copper Weight (Finished)||0.5oz – 10.0oz|
|Solder Mask Color||Green, White, Blue, Black, Red, Yellow|
|Silkscreen Color||White, Black, Yellow|
|Surface Finish||HASL – Hot Air Solder Leveling |
Lead Free HASL – RoHS
ENIG – Electroless Nickle/Immersion Gold – RoHS
|Min Drilling Hole Diameter||6mil|
Advantage of MCPCB
Some LEDs dissipate between 2-5W of heat and failures occur when the heat from a LED is not properly removed; a LED’s light output is reduced as well as degradation when the heat remains stagnant in the LED package. The purpose of a MCPCB is to efficiently remove the heat from all topical IC’s (not just LEDs). The aluminum base and thermally conductive dielectric layer act as bridges between the IC’s and heat sink. One single heat sink is mounted directly to the aluminum base eliminating the need for multiple heat sinks on top of the surface mounted components.
2. thermal expansion
Thermal expansion and contraction is the common nature of the substance, different CTE is different in thermal expansion. As its own characterics, aluminum and copper have unique advance than normal FR4, thermal conductivity can be 0.8~3.0 W/c.K.
3. dimensional stability
It is clear that the size of the metal-based printed circuit board more stable than insulating materials. The size change of 2.5 ~ 3.0% when metal core pcb and aluminum sandwich panels was heated from 30 ℃ to 140 ~ 150 ℃.
4. Less expensive.
Aluminum is indigenous to a variety of climates, so it’s easy to mine and refine. That makes it significantly less expensive to mine and refine than other metals. By extension, the manufacturing costs associated with products using aluminum are also less expensive. Aluminum PCBs are also a less expensive alternative to heat sinks.
5. Friendly to the environment.
Aluminum is a non-toxic, recyclable metal. From the manufacturer through to the end consumer, using aluminum in PBCs contributes to a healthy planet.
6. Very durable.
Aluminum is stronger and more durable than base materials like ceramic and fiberglass. It is very sturdy, and reduces accidental breakages that can occur throughout the manufacturing process, and during handling and everyday use.
Considering its durability, aluminum is very lightweight. It adds strength and resilience to PCBs without adding additional weight.