Aluminum base board PCB ABC

What is the aluminum base board PCB?

Aluminum base pcb is an unique metal-based CCL, aluminum PCB is with good thermal conductivity, electrical insulation and mechanical processing performance.

Characters of aluminum base PCB:

● Aluminum base PCB surface with a mount technology (SMT)

● Aluminum base PCB has good heat dissipation in the circuit design

● Aluminum core pcb can reduce the temperature, increase power density and reliability, extend product life

●Aluminum board PCB can reduce size, lower hardware and assembly costs

●Aluminum substrate PCB can replace ceramic substrates board, to obtain better mechanical endurance.

PCB aluminum structure

Aluminum PCB copper clad is a metal circuit board materials, composed with copper foil, insulation layer and the metal substrate, its structure is divided into three layers:

Circuit layer: same with general PCB CCL, copper foil thickness could be 1oz to 10oz.

Insulation: insulation layer is a layer materials with low thermal resistance, thickness from 0.003 "to 0.006”, is the key technology of aluminum core board, has received UL certification.

Base layer: is metal substrate, usually aluminum or copper. Aluminum circuit boards and traditional FR4 laminated sheet

PCB aluminum board consist of circuit layer, insulation layer and metal core .Circuit layers (copper foil CCL) is usually formed after printed circuit etching, which make each components connected. In general, the circuit layer requires a great currency loading ability, that needs thicker foil, usually 35μm ~ 280μm.

Insulation layer is the core point of PCB aluminum board. It is usually filled by a special ceramic special polymer, with feature of thermal resistance, excellent viscoelastic properties, heat resistant and aging-resistant, could withstand mechanical and thermal stresses.  Insulation layer of IMS-H01, IMS-H02, LED-0601 and other high-performance aluminum plate PCB use such technology, which enable it with an extremely excellent thermal properties and high electrical insulation strength.

Metal substrate is the support part of aluminum board, which requires a high thermal conductivity. Usually use aluminum core, sometimes also copper core (copper core pcb can provide better thermal conductivity), suitable for drilling, punching, cutting and other conventional machining. Compared with other PCB material, it has its own advantages, suitable to SMT surface mount assembly process, no radiator, much smaller, excellent heat dissipation, good insulation properties and mechanical performance.

PCB aluminum board applications:

1. Audio device: input, output amplifiers, balanced amplifiers, audio amplifiers, preamplifiers, power amplifiers, etc.

2. Power supply: switching regulator, DC / AC converter, SW regulator and so on.

3. Communication Electronic Equipment: Electric high-frequency amplifier, filtering, transmitter circuits.

4. Office Automation Equipment: motor drives.

5. Car: Electronic regulator, igniter, power controller.

6. Computer: CPU boards, floppy drives, power devices.

7. Power Modules: solid state relay inverter, rectifier bridges.