Audio preamplifier Aluminum mcpcb aplication

Audio preamplifier Aluminum mcpcb aplication
Aluminum based PCB, also named Aluminium PCB, metal clad(MCPCB) PCB, insulated metal substrate(IMS or IMPCB) PCB, thermally conductive PCBs, etc. It is generally including single layer, double layer and multi layer.
Operating theory:
The power device surface mounting on circuit layer, it is ideally suited for the mounting of high power light emitting diodes (LEDs) easily dissipating the heat generated by power devices.
Aluminum based PCB used:
Aluminum base PCB used:
1. Audio devices: input, output amplifiers, balanced amplifiers, audio amplifier, preamplifier, power amplifier.etc.
2. Power Supply: Switching Regulator,DC / AC converter,SW regulator.
3. Telecommunications electronic equipment: high-frequency electric amplifiers ,Filtering appliance ,Transmitter circuit,etc.
4. Office automation equipment: Electric motor, drives.etc
5. Automotive: Electronic regulator, Ignition, Power Controllers.etc
6. Computer: CPU board ,Floppy drive ,Power Device.etc
7. Power Modules:Converter, solid-state relay ,Power Rectifier bridges,etc
8. Lamps Lighting: with the promotion of energy-saving lamps, Aluminum base PCB , used on LED lights ,begin large-scale application.
1. Single-sided Aluminium pcb
Aluminium PCB (Metal Core PCB for LED Lighting)
Single-Sided board ( SSB)
Base-material: Aluminium Base material
Board thickness: 1.6MM
Solder mask Color: White TaiYo
Silkscreen: Black
Surface Finish: HAL Lead Free
Keyword: Aluminium PCB︱Aluminum PCB Manufacturer︱IMS MPCB, MCPCB︱Metal core PCB︱Aluminium based PCB assembly︱LED lighting PCB︱Copper base board︱Al PCB︱Bergquist Aluminum pcb︱MCPCB supplier
The Single-Layer MCPCB can be used with surface mount and chip & wire components, and provides much lower thermal resistance than FR4 PWB. The metal core provides lower cost than ceramic substrates, and allows much larger areas than ceramic substrates.

Double Layers Metal Core PCB

Double layers MCPCB is consisting of two layers of copper conductor, put them on same side of metal core (usually aluminum, copper or iron alloy). The metal base is on the bottom of whole MCPCB, which is different from double sided MCPCB(the two copper layers were put on the each side of metal core respectively), and you can only populate SMD on top side.

Different with Single layer MCPCB, 2 layers MCPCB requires an additional pressing step to laminate the imaged thermal conductive laminate and metal core (also known as metal base) together.

Compared with normal FR4, this sturcture need more technology and experience on laminating of two layers together with metal core.

The processing steps of the MCPCB with the metal base embedded in the PCB are comparatively complex as hole plugging is required after primary drilling on the metal base in order to isolate it from the circuitry.

Metal Core Printed Circuit Board MCPCB
MCPCB means the metal-based printed circuit board (MCPCB), that is, the original printed circuit board attached to a better thermal conductivity of the other metal, can improvethe heat dissipation of the circuit board.
Currently the most common MCPCB including: Aluminium PCB,Copper base PCB,Iron PCB. Aluminum PCB has good heat transferring and dissipation ability, but yet relatively cheaper; copper PCB has even better performance but relatively more expensive, and Iron PCB 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.

MCPCB Prototype
To correctly cut the metal core layer without breaking the insulation,
Accuracy in depth control when cutting is essential.
When counter is routing an aluminum base, a high torque spindle motor is used.
A MCPCB prototype is produced by using machines with precisely driven
Z-axis, an accurate and ruggedized mechanism, and a flat working table.

Types of MCPCB (Metal core PCB)
Metal core PCB are sorted according to the location of the metal core and the trace layers of the PCB.
There are 5 main types of metal core PCB and these are
-Single Layer MCPCB (one trace layer on one side),
-COB LED PCB (one trace layer),
-Double Layers MCPCB (two trace layers on one side),
-Double Sided MCPCB (two trace layers on both sides) and
-Multi Layers MCPCB (More than two trace layers on every board).

What is MCPCB?

MCPCB: Metal core print circuit board.

Metal Core PCB

Metal core PCB are wide used for LED lighting ,power supply,power amplifier..
Main material is Aluminum , Copper ,Al2Q3 (Ceramics) and iron.
We provides MCPCBs Using aluminum core , copper core, iron core and ceramics pcb.
During for it is Insulated Metallic Substrate circuit board,
some people Called it as IMS PCB. Metal Core PCBs are
thermal management boards used in high Heat generating Applications,
such as LEDs. power supply field., Audio , motor..

Aluminum Printed Circuit Boards (PCBs) are a type of Metal Core PCBs (MCPCBs) that are well-known for their heat dissipation properties. The heat dissipation is conducted through a thin layer of thermally conductive dielectric material. These circuit boards are also referred as Aluminum base PCBs or Aluminum Clad PCBs. These types of PCBs are not only good at dissipating heat, but also help cool components, which improves the overall performance of the circuit. What is so significant about these PCBs? What are their benefits? Where are these PCBs used? Read on to get answers to all these questions.

The Structure of an Aluminum PCB:

A metal PCB is made from Aluminum base Copper Clad Laminate (CCL), which acts as a raw material. These PCBs are made up of three layers, and contain metal substrate, copper foil, and thermal infusion layer. The three layers are:

Metal Core PCB uses - LED Applications & More

Heavy Copper Core PCB
Photo Credit: Robert Tarzwell
Applications that generate a large amount of heat often cannot be adequately cooled using just traditional fans. Conductive cooling through metal core PCBs are an ideal production option.

MCPCBs are most widely found in LED technologies, as they reduce the number of LEDs required to produce a specific illumination. Light emitting diodes release a great amount of heat in applications such as:

Double layers MCPCB is consisting of two layers of copper conductor, put them on same side of metal core (usually aluminum, copper or iron alloy). The metal base is on the bottom of whole MCPCB, which is different from double sided MCPCB(the two copper layers were put on the each side of metal core respectively), and you can only populate SMD on top side.

Different with Single layer MCPCB, 2 layers MCPCB requires an additional pressing step to laminate the imaged thermal conductive laminate and metal core (also known as metal base) together.

Compared with normal FR4, this sturcture need more technology and experience on laminating of two layers together with metal core.

The processing steps of the MCPCB with the metal base embedded in the PCB are comparatively complex as hole plugging is required after primary drilling on the metal base in order to isolate it from the circuitry.

Double Sided Metal Core PCB

It also has same two layers of copper conductor like Double layers MCPCB, but the metal core is in the middle of two conductor, so there're conductors (trace) on both sides of metal core, and were connected to each other by Vias. So we named it "Double sided MCPCB", and you can populated SMD on both top and bottom.

Different with Single layer MCPCB, double sided MCPCB also requires an additional pressing step to laminate the imaged thermal conductive laminate and metal core (also known as metal base) together. But sometimes, some raw Metal Clad material vendor will supply board material which already laminated.

Compared with normal FR4, this sturcture need more technology and experience on laminating of two layers together with metal core.

Multi Layers Metal Core PCB

Just like FR4 PCB, we can also make boards with more than 2 layers of traces and we named it "
Multi Layers MCPCB
". The structure is similar with FR4 Multi Layers, but it much more complex to make.

You can populated more components on the boards, put signal and ground layer into seperated layers, to achieve better performance in electrical performance.

Compared with normal FR4, this sturcture need more technology and experience on laminating of more than two layers together with metal core and the cost is much higher than 2 layers MCPCBor double sided MCPCB.

Application of MCPCB

LED lights:High-current LED, Spotlight, high-current PCB

Industrial power equipment:High-power transistors, transistor arrays, push-pull or totem pole output circuit (to tem pole), solid-state relay, pulse motor driver, the engine Computing amplifiers (Operational amplifier for serro-motor), pole-changing device (Inverter)

Cars: firing implement, power regulator, exchange converters, power controllers, variable optical system

Power:voltage regulator series, switching regulator, DC-DC converters

OA: Printer driver, large electronic display substrate, thermal print head

Audio: input - output amplifier, balanced amplifier, pre-shield amplifier, audio amplifier, power amplifier

Others:Semiconductor thermal insulation board, IC arrays, resistor arrays, Ics carrier chip, heat sink, solar cell substrates, semiconductor refrigeration device

Back light unit applications
Street safety applications (streetlights, lighting, etc.)
General lighting applications
System automotive LED applications
Power converters: telecom, industrial, high voltage regulator, power supplies
Hybrid/electric motor control applications
Photovoltaic
Using a metal core PCB in these LED products and applications help to greatly reduce the heat emitted.

Other applications that are ideal for MCPCB integration are solar panels and motion control applications. We can also combine metal core with our HDI PCB technology. We also offer other advanced circuit technology including microwave RF PCB, flex PCB and rigid flex PCBs.

MCPCB Design & MCPCB Manufacturer

The manufacturing process and design rules are similar to conventional PCBs. We provide metal core pcb prototype fabrication and mcpcb fabrication quantities for both aluminum core and heavy copper PCBs.

Thermal management PCBs or MCPCBs are processed with standard SMT assembly equipment in the PCB manufacturing process.

Base Layer: This layer is made from a metal core. Most commonly, copper base and aluminum base are used in this layer.
Dielectric Layer: This layer consists of a dielectric, and provides low thermal resistant and thermal insulation. This layer has a thickness that varies between 0.003ʺ and 0.006ʺ.
Circuit Layer: The circuit layer is made up of PCB copper clad laminate. The thickness of copper foil can vary from l oz to 10 oz.
Beneficial Features of Aluminum PCBs

A lot of beneficial features of these metal core PCBs make them an ideal choice for a number of applications. So, what are these features? They are as follows:

These PCBs offer good electrical insulation, which facilitates excellent performance.
Aluminum PCBs have a good thermal conductivity.
All components on these PCBs are surface mounted.
These PCBs require smaller footprints, which helps reduce overall assembly and hardware costs.
Aluminum PCBs have a good mechanical durability, and are a great replacement to ceramic based PCBs.
Aluminum made PCBs lower the operating temperatures of products, thus increasing the power density and reliability of the circuit. This property helps the product to have a longer shelf life.

How many advantage of MCPCB?

1 . High thermal conductivity
General Aluminum core PCB
could be 0.8/1.0/1.5/ 2.0 w/m.k up to 10 W/m.k

Special technical Aluminum PCB
could 173 w/m.k (direct chip on Aluminum)

Special technical Copper Substrate PCB
could be 384 w/m.k (direct chip on copper)

FR4 is approx only 0.3 W/m.K

Nowadays, most of metal core PCB are Aluminum PCB due to the Aluminum are cheap and its useful characteristic, see below:

● Have a nice heat-conducting property, Good electrical insulation properties and machining property

● In a same condition, compare with Fr4 material, the Aluminum PCB can carry a more higher current, and pressure can up to 4500V, Coefficient of thermal conductivity is greater than 2.0.

● Lower the operation temperature, improve the Product power density and reliability so that lengthen the product using life.

● Help reduce the size of product so that cut down the product cost and assembly cost.

● Can replace the brittle ceramic PCB, Get a better mechanical endurance.

Character

I think, after know the advantage of the MCPCB, you may have a question: what kind of product mainly applicate the MCPCB?

MCPCB Benefits VS FR4 PCB
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.
Flatness maintained in all 3 layers
High Heat Dissipation
High density of components
Reduced PCB size / Small footprint
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 Aluminum PCB and aluminum sandwich panels was heated from 30 ℃ to 140 ~ 150 ℃.
Components operate at lower temperatures
Durable
Higher Watt Density
Longer component life
Less hardware (topical heat sinks, screws, clips, etc)
Lower Manufacturing Cost
Selective dielectric removal can be used to expose inner-layer and or the baseplate for component attachment to these layers which also reduces thermal resistance.

Double Sided Metal Core PCB

It also has same two layers of copper conductor like Double layers MCPCB, but the metal core is in the middle of two conductor, so there're conductors (trace) on both sides of metal core, and were connected to each other by Vias. So we named it "Double sided MCPCB", and you can populated SMD on both top and bottom.

Different with Single layer MCPCB, double sided MCPCB also requires an additional pressing step to laminate the imaged thermal conductive laminate and metal core (also known as metal base) together. But sometimes, some raw Metal Clad material vendor will supply board material which already laminated.

Compared with normal FR4, this sturcture need more technology and experience on laminating of two layers together with metal core.

Multi Layers Metal Core PCB

Just like FR4 PCB, we can also make boards with more than 2 layers of traces.

Express PCB		Rigid PCB Rapid Prototype,24 hours
Fr4 PCB		prototype Lower to 15USD !
Rapid Prototype		Fr4 Rigid PCB Rapid Prototype China,

MCPCB		MCPCB Manufacturer China, Shenzhen
Aluminum PCB:		Aluminum Metal Core PCB manufacturing, Fabrication
Aluminum PCB:		single side, double side MCPCB, 0.5-5mm or more

Rogers 4350B		Rogers 4350,Rogers 4003 Manufacturing
Rogers 4350B		Rogers 4350B,4003C PCB Manufacturer
Ro4350B		Rogers High Frequency PCB Manufaturing China

Turnkey Services		Turnkey PCB Assembly Services,
Turnkey services		Print circuit board Manufacturing, Turnkey Services
Turnkey Assembly		Through Hole PCB components wave soldering Assembly

Audio preamplifier Aluminum mcpcb aplication

PCB Supplier Shenzhen, China, PCB Manufacturer, Turnkey services

Express PCB

Rigid PCB Rapid Prototype,24 hours

MCPCB

MCPCB Manufacturer China, Shenzhen

Rogers 4350B

Rogers 4350,Rogers 4003 Manufacturing

Turnkey Services

Turnkey PCB Assembly Services,

Audio preamplifier Aluminum mcpcb aplication