Tuesday, June 14, 2016

Well Known Aluminum PCB Manufaturer

If you are looking for PCB manufacturer in Aluminum PCB material, this can be the best for you. Aluminum PCB manufacturer is not easy to dealth with, well let' s have a know on Aluminum PCBs. Aluminum Printed Circuit Board is also named Aluminum clad, Metal clad (MCPCB), Thermally conductive PCBs, Insulated Metal Substrate (IMS or IMPCB),aluminum base PCB, etc., is often used in LED lighting products and power hybrid IC (HTC),it is a metal-based CCL which has good heat dissipation function. Normally, single sided board is consisted of three layers: circuit layer (copper foil), insulation layer and metal substrate.

Aluminum Printed Circuit Boards Contain a Thin Layer of Thermally Conductive Dielectric Material that Transfers Heat。There are many names for these products; Aluminum clad, aluminum base, Metal clad printed Circuit Board (MCPCB), Insulated Metal Substrate(IMS or IMPCB), Thermally conductive PCBs,etc… but they all mean the same thing and perform the same way.

How Layers Are Aluminum PCBs Made

A thin layer of thermally conductive but electrically insulating dielectric is laminated between a metal base and a copper foil. The copper foil is etched into the desired circuit pattern and the metal base draws heat away from this circuit through the thin dielectric。

Benefits of Aluminum PCBs

Heat dissipation is dramatically superior to standard FR-4 constructions.The dielectrics used are typically 5 to 10 times as thermally conductive as conventional epoxy-glass and a tenth of the thicknes.Thermal transfer exponentially more efficient than a conventional rigid PCB.Lower copper weights than suggested by the IPC heat-rise charts can be used.

Applications of Aluminum PCBs

Although Power Converters and LEDs are the largest users of these products, Automotive and RF companies are also looking to take advantage of the benefits of these constructions.
While a single layer construction is the simplest, other configuration options are available at Amitron, including:Flexible Aluminum PCBsFlex.One of the newest developments in IMS materials is flexible dielectrics. These materials.feature a polyimide resin system with ceramic fillers which provides excellent electrical insulation, flexibility and of course thermal conductivity. When applied to a flexible aluminum material like 5754 or similar, the product can be formed to achieve a variety of shapes and angles which can eliminate costly fixtures, cables and connectors. Although these materials are flexible, they are intended to be bent into place and remain in place.They are not suited for applications that are intended to be flexed regularly.

Aluminum PCB for LED

LED heat dissipation problem is LED manufacturers the most difficult problem, but can be used aluminum plates, because of the high thermal conductivity of aluminum PCB, heat, and can effectively export the internal heat. Aluminum plate is a unique metal-based CCL, with good thermal conductivity, electrical insulation properties and machinability. We should try to be close to the aluminum base PCB design, reducing the thermal resistance potting segment generated.

Multilayer Aluminum PCBs

Common in the high performance power supply market, multilayer IMS PCBs are made from multiple layers of thermally conductive dielectrics. These constructions have one or more layers of circuitry buried in the dielectric with blind vias acting as either thermal vias or signal vias. While more expensive and less efficient at transferring heat as a single layer designs, they provide a simple and effective solution for heat dissipation in more complex designs.


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