Archive for the ‘Metal Core PCB’ Category

What are the factors affecting cost of the MCPCB?

Tuesday, September 29th, 2020

Best Technology considers all the factors affecting the cost of MCPCB production while formulating final cost structure. Many customers contact us to know the factors which affecting the price. The factors are Size & Thickness, Number of layers, Cu Thickness, Thermal Conductivity, Surface Finishing etc.

Size & Thickness: Since larger boards require more material.

As you know, 1.6mm is the standard thickness, if you choose non-standar thickness (Thicker or thinner than 1.6mm), sometimes the price will need to increase, it depend on the layers of your MCPCB.

The different number of layers and manufacturer technology:It’s the main factor for affecting the manufacturing price, therefore the circuit board designing is done in such a manner that it comprises a minimum number of circuit layers. 

Thermal Conductivityis one of the most important performances of MCPCB, the higher the thermal conductivity is, the more expensive the price is. At present, the highest thermal conductivity we can provide is 8W/m.K, the commonly used thermal conductivity is 1-3W/m.K

Cu Thickness: The cost will be more expensive if the copper is thicker. We can provide 0.5 OZ, 1.0 OZ, 2.0 OZ, 3.0 OZ, up to 10 OZ.

Surface Finishing: The common Surface Finishing for MCPCB is HASL_LF, OSP  ENIG (The normal thickness of gold is 1u’’). ENIG is more expensive since the gold is expensive and it with good performance for protecting the surface from oxidized.

ENIEPIG is good for wire bonding (the normal thickness of gold is 3u”).

We always strive to formulate a competitive price structure for our customers, this enables to have a considerable reduction in the total prices and deliver superior quality services to them. If you would like to know more about MCPCB, please directly contact our sales Tammy

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If only the LED pad can be made as SinkPAD?

Friday, September 4th, 2020

According to our earlier blogs about SinkPAD introduction,

we can know that the high power LED’s thermal pad can touch the convexity area of copper core directly, so the heat of LED will be dissipated into the air much faster and more efficient than conventional MCPCB, but if only the LED pad can be designed as SinkPAD?

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Actually the pads of other chips or components also can be designed as SinkPAD, one of the most common is the IC pad. In some designs, IC needs to pass through the large current, so it will emit a lot of heat.

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In order to dissipate heat in time, some customers will directly design the IC solder pad as sinkpad to directly contact the copper base, so that the life cycle will be longer.

As you can see the following picture, it’s the copper layer after doing Etching, the area with blue film we normally named it as convexity, the thermal pad of IC will touch the convexity directly to achieve the purpose of dissipating the heat very fast.

This image has an empty alt attribute; its file name is Convexity-s.jpg

If you have other questions about SinkPAD, welcome to contact Tammy (Email:sales9@bestpcbs.com), she will prove you professional suggestions and solutions.

In the end, I’d like to share the manufacturing process of SinkPAD Board with you, please Click here: SinkPAD-Board-Manufacturing-Process-Best-Technology.pdf

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What are the Differences between Double Sided MCPCB and Double/Two Layers MCPCB?

Friday, August 14th, 2020

Metal Core PCB are differentiated on the basis of their construction, which can be divided into following types: single layer, double/two layers, double sided, and multi layer. The double sided and double/two layers MCPCB are commonly used in advanced electronic circuits, some people may be confused about them due to their similar names. So in this blog I’d like to share with you the differences between the two types. 

Actually the main difference is the double sided and double/two layers MCPCB have different layout due to the positioning of the metal core.

Double/two layers MCPCB

As you can see the following stack up, the metal core is at the bottom, with two copper layers on top side, the dielectric layer is between the copper layer and the bottom metal base. In short, the conductor layers is in same side of the metal core. The components can only be assembled on the top layer.

double/two mcpcb stack up
double/two mcpcb

Double sidedMCPCB

As you can see the following MCPCB stack up, the metal core is in the middle of two conductor layers. There is also a dielectric layer between the metal core and a copper layer. The metal core and conductors are connected to each other through PTH (Plated Through Hole). The components can be assembled on both the bottom and top.

double sided mcpcb stack up
double sided mcpcb
Double sided MCPCB

Both double sided and double/two layers aluminum/copper core have the good heat dissipation, reliable performance at high temperatures and excellent thermal expansibility, according to our experience, for the same design, the heat dissipation on Double Sided MCPCB is a little better than Double Layers MCPCB.

The choice of the either type will depend on customer’s application requirements. If you are still confused about the two types and their benefits for your application, please feel free to contact Tammy (Email:sales9@bestpcbs.com), the Metal Core PCB International Sales in Best Technology.

Welcome to visit our website to learn more about us, we can provide different types of MCPCB in diverse specifications.

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