pcb
Home > Blog

Posts Tagged ‘MCPCB’

Newer Entries »
Differences in Structure——Aluminum PCB vs Ceramic PCB Series 1
Monday, March 21st, 2022

It is supposed that we are familiar with both aluminum PCB and ceramic PCB. But if juxtaposing them, which one will be better by one tally? So, we are about to talk about some differences between them in terms of structure.

Aluminum PCB

Aluminum substrate namely uses aluminum as substrate, which has a good heat dissipation capacity. Generally, it is single-sided, and also can be double-sided while multi-layer aluminum PCB is a little bit hard to manufacture. Besides, a single layer aluminum PCB is made up of copper layer, dielectric layer and aluminum layer.

Structure of Aluminum PCB

Ceramic PCB

Ceramic PCB namely uses ceramic as substrate. Apart from the material, the structure is the biggest difference between ceramic PCB and aluminum PCB. Since ceramic itself is an insulating material, it does not need a dielectric layer. Its structure is as follows.

Structure of Ceramic PCB

Therefore, whether there is a dielectric layer is the main difference in structure between aluminum PCB and ceramic PCB. And dielectric layer plays an important role in thermal conductivity. So, what is the relationship between dielectric layer and thermal conductivity? And whose thermal conductivity is better between aluminum PCB and ceramic PCB?

We will talk about it next time. And if you would like to know the answer, please feel free to contact us, or you can continuously follow our blog site, we will keep updating more information about the differences between aluminum PCB and ceramic PCB on it.

You may also like

Tags:,
Posted in Ceramic PCB, mcpcb, Metal Core PCB | No Comments »

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 3uâ€Â).

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

You may also like

Tags:
Posted in mcpcb, Metal Core PCB, Our News, PCB News, PCB Technology | No Comments »

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.

You may also like

Tags:, ,
Posted in Metal Core PCB, Our News, PCB News, PCB Technology | No Comments »

What is SinkPad PCB?
Wednesday, June 17th, 2020

SinkPad PCB, also called Heat Sink or DTP (direct thermal path) PCB, it is a type of Copper base PCB used in thermoelectric separation application. It generally used for high power LED, the pad of LED touch the copper base directly, so that the heat generated by LED will dissipate quickly, which can achieve the best heat dissipation and conduction.

SinkPad PCB
SinkPad PCB

Thermoelectric separation technology is based on the higher heat dissipation requirements of high power electronic products, which needs to meet two basic conditions:

1.LED pad touches the base substrate directly.

It means we need to increase the path of the LED pad to the base substrate to accelerate the heat emission from the base material.

Two layers SinkPad PCB Stack up
Two layers SinkPad PCB Stack up

2.Higher heat dissipation substrate materials

Copper has a thermal conductivity of 401W/m·K, while aluminum has a thermal conductivity of 237W/m·K. Obviously, copper has better thermal conductivity because of its high density, high mass. Therefore, a SinkPad PCB usually means a SinkPad copper base PCB.

You may also like

Tags:, ,
Posted in FAQ, Our News, PCB News, PCB Technology | 1 Comment »

Why do High Power LED mostly use COB light sources? What are the advantages?
Tuesday, June 16th, 2020

If we observe carefully, we will find that most of the high-quality surface light lamps in the market use COB light source, such as LED spotlights, Automotive, LED Backlight for LED TV, etc. What are the advantages of such choice?

Automotive
Automotive
LED Backlight for LED TV
LED Backlight for LED TV
LED spotlights
LED spotlights

First of all, we need to how the COB differ from the common MCPCB. “Chip-On-Board” Metal Core PCB is a type of MCPCB used in thermoelectric separation application. By using COB, the micro-chip (also known as “die”) directly touch the metal core where the heat dissipate, and electrically interconnect the trace of circuit board (wire-bonding) so that power supply can be provided.

Stack up
Stack up

Advantages of utilizing COB MCPCB over common MCPCB:

  1. High thermal conductivity(137W/m.K), High insulation, High pressure resistance
  2. High reflectivity: mirror aluminum≥98% (The reflectivity of Taiyo Soldermask used in common MCPCB is 75-80%, the highest is only 90%)
aluminum pcb
BAS15191
metal core pcb
BAS15192

Since the COB is packaged directly on the MCPCB, it’s easy assembly for high powers LED, direct heat dissipation through the substrate can not only reduce the manufacturing process and cost of the bracket, but also have the advantage of reducing heat dissipation resistance. So the spotlight produced by COB technology will be lighter, more flexible and able to realize more possibilities on the stage.

If you are also interested in COB, please feel free to contact me, I’m looking forward to communicating more with you.

You’re welcome to visit our website to learn more about us. https://www.bestpcbs.com/products/COB-MCPCB.htm

You may also like

Tags:,
Posted in FAQ, Our News, PCB News, PCB Technology | No Comments »

Aluminum PCB LED Strip
Friday, March 20th, 2020

With the development of LED technology, LED power keeps increasing. This is closely related to heat dissipation. In order to resolve heat dissipation of LED with big power, aluminum-based copper-clad laminate is highly applied in led strip field.

Aluminum PCB(metal-based heat dissipation board) is a kind of unique metal-based copper-clad laminate. It has good head conductivity, electrical insulation and machining performance. Single-sided aluminum pcb consists of three layers of structures:circuit layer(copper foil), insulation layer and metal-based layer. Circuit layer requires large current-carrying capability, so we should use thick copper foil(generally 35um to 280um). The insulation layer for heat conduction is the core technology of aluminum pcb. It is general composed of special polymer filled with special ceramic. Small heat resistance, excellent viscoelasticity and anti-aging are all its advantages. And it is also able to bear mechanical and heat stress. Metal-based layer is the supporting component of aluminum pcb, and it needs to have high heat conductivity, so we generally use aluminum board, or copper board(which can provide higher conductivity). And it is suitable for regular machining such as drilling, punching and cutting. Techniques include gold plating, solder levelling, osp, ENIG, lead-free ROHS and so on.

single-layer-mcpcb-stackup
single-layer-mcpcb-stackup

Aluminum pcb is commonly seen in LED products and has two sides(the front side and the reverse side). The white face is used to solder LED pin, and the other face presents natural color. It is generally painted with thermal conductivity paste and then contacted with heat conduction part. LED aluminum pcb is mainly used in power amplified mixed integrated circuits for STK series, motor cycles, automobile and electronics field.

There are many kinds of aluminum pcb for led tube, which varies based on the length and width of led tube. Aluminum pcb for led tube is popular with people due to its good quality, and durable and energy-saving features.

led strip
led strip

Aluminum pcb for led tube can save electricity as high as 70%. The light intensity of 12W Led tube is equal to 40w fluorescent tube. The service life of LED tube is is more than 10 times that of general fluorescent tube. It can be free of maintenance. Also, there is no need to change LED tube, barratter and starter frequently.

Generally, fluorescent tube has high temperature inside and needs to be used for more than 10 hours everyday in most cases. This problems are perfectly resolved by aluminum pcb for led tube.

If you have any queries, comments or suggestions on aluminum pcb for led, welcome to leave your message.

You may also like

Tags:, , ,
Posted in FAQ, Our News, PCB News, PCB Technology | No Comments »

LED Lighting: MC-PCBs
Wednesday, November 13th, 2019

LEDs are pretty hot nowadays! Not just the biggest tendency in lighting, but also require a lot of heat dissipation that standard PCB material just can’t handle. So what’s the solution? Metal PCBs. Standard PCB material typically has a thermal conductivity of 0.5 W/m K; which is not adequate for the current high intensity LEDs. With MCPCB materials you can increase the life of your LEDs with better heat dissipation.

What’s the thermal conductivity of MCPCB material?

Up to now, Best Technology has helped many customers with their MCPCB needs and have found the most common questions as shown below:

What is the most cost effective MCPCB?

How do you layout an MCPCB?

Can I get a different dielectric thickness between the metal and circuit layer?

Can I put plated through holes on an MCPCB?

Can I do more than one layer with an MCPCB?

How quick can a MCPCB be manufactured?

What Metals can be used?

The professional staff at Best Technology can help you resolve these questions and even more. Need help getting started? Contact us today.

You may also like

Tags:,
Posted in Uncategorized | No Comments »

MCPCB can be without solder mask?
Friday, March 25th, 2016

MCPCB can be without solder mask

Yes, we can make the MCPCB without solder mask! How to do MCPCB without solder mask?

 

  • First step, we use our dielectric layer and laminate with copper, so we get the material of this stack up

Top: copper foil

Middle: dielectric layer

Bottom: Aluminum or Copper or Iron substrate

 

  • Second step, etch copper to get the trace, the areas without trace will expose the dielectric layer, the color of 1W/m.K & 2W/m.K raw material is white, 3W/m.K is light blue.

 

 

3 w m/k dielectric layer is light blue

3 w m/k dielectric layer is light blue

2 w m/k dielectric layer is white

2 w m/k dielectric layer is white

  • Third step, do the surface finish, HAL-LF, OSP, ENIG, etc…，here you will kow for no Soldermask ,it have to do surface finishing for all circuits,so if you would like to protect parts of circuits layer and which don’t need do surface finishing.

MCPCB without solder mask have no bad influent the function of the board, so solder mask with or without, only depends on your requirement.please visit for metal core PCB if you would like to know more.

You may also like

Tags:
Posted in FAQ, PCB Technology | No Comments »

The advantage and disadvantage of aluminum PCB
Friday, March 18th, 2016

The aluminum PCB is a unique metal base copper clad laminate , it has good thermal conductivity, electrical insulation properties and machining property.

The structure of aluminum PCB is divided into three layers.

First layer: base layer, it is the metal substrate, which can choose copper or aluminum.

Second layer: dielectric Layer, its thickness be from 0.003 inch to 0.006 inch.

Third layer: circuit layer, the copper thickness of the circuit is from 1oz to 10oz.

The advantage of aluminum PCB:

  • it has good heat radiation and better strength.

 

The disadvantage of aluminum PCB:

  • High cost.
  • The current mainstream can only do single aluminum PCB, it is difficult to do double sided aluminum PCB.
  • The product will be more easily to have matter in electrical strength and pressure.

Aluminum core PCB have good thermal conductivity but Ceramic PCB will better,if you would like to know more about the different from FR4,MCPCB and Ceramic PCB,pls visit to for more information.

 

You may also like

Tags:
Posted in FAQ, PCB Technology | No Comments »

Newer Entries »