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Custom OEM ODM Prototype PCB Assembly Service LED Lighting Industry
Led pcb board aluminum circuit boards custom service pcb manufacturers
Aluminum PCB:
Aluminum PCB is a kind of metal-based copper clad laminate with good heat dissipation function. Generally, single panel consists of three layers, namely circuit layer (copper foil), insulation layer and metal base. Used for high-end use is also designed for double panels, the structure is circuit layer, insulation layer, aluminum base, insulation layer, circuit layer. Very few applications are multi-layer boards, which can be made by bonding ordinary multi-layer boards with insulating layer and aluminium base.
LED PCB is Aluminum PCB, which is also the meaning of printed circuit board, but the material of PCB is aluminum alloy. In the past, the material of PCB is glass fiber, but because the heat of LED is bigger, the PCB used for LED lamps is generally aluminum Substrate, which can conduct heat quickly. The PCB used for other equipment or electrical appliances is glass fiber board.
Structure of aluminum PCB
PCB aluminum based copper clad laminate is a kind of metal circuit
board material, which is composed of copper foil, thermal
insulation layer and metal substrate
1. Circuit layer: equivalent to common PCB copper clad laminate,
circuit copper foil thickness from 1oz to 10oz.
2. Insulating layer: insulating layer is a layer of low thermal resistance thermal insulation material. Thickness: 0.003 "to 0.006" inch is the core technology of aluminum based copper clad laminate, which has obtained UL certification.
3. Base: is a metal substrate, generally aluminum or optional
copper. Aluminum based copper clad laminates and traditional epoxy
glass cloth laminates
PCB aluminum substrate is composed of circuit layer, thermal
insulation layer and metal base layer; circuit layer (i.e. copper
foil) is usually etched to form printed circuit, so that the
components of components are connected with each other. Generally,
the circuit layer requires a large current carrying capacity, so
thick copper foil should be used, with a thickness of 35 μ m ~ 280
μ M. Thermal insulation layer is the core technology of PCB
aluminum substrate. It is generally composed of special polymer
filled with special ceramics. It has small thermal resistance,
excellent viscoelastic performance, thermal aging resistance, and
can withstand mechanical and thermal stress. This technology is
used in the thermal insulation layer of High Performance PCB
aluminum substrate, such as IMS-H01, IMS-H02 and LED-0601, which
makes them have excellent thermal conductivity and high strength
electrical insulation performance.
Metal base is the support component of aluminum substrate, which
requires high thermal conductivity. Generally, aluminum plate can
be used, and copper plate can be used (copper plate can provide
better thermal conductivity), which is suitable for drilling,
punching, cutting and other conventional machining. Compared with
other materials, PCB material has incomparable advantages. Suitable
for SMT technology of power module surface mounting. Without
radiator, the volume is greatly reduced, the heat dissipation
effect is excellent, and the insulation and mechanical properties
are good.
No. | Item | Specification |
1 | PCB Layers | 1 to 24 layers |
2 | PCB Max working panel area | 457 x 610 mm |
3 | Min trace width | 0.10mm |
4 | Min spacing | 0.10mm |
5 | Min hole diameter | 0.20mm |
6 | Min Copper thickness in hole | 0.020mm |
7 | PTH size tolerance | ±0.05mm |
8 | NPTH size tolerance | ±0.025mm |
9 | Hole position tolerance | ±0.05mm |
10 | Dimension tolerance | ±0.1mm |
11 | Min solder mask dam | 0.08mm |
12 | Insulation resistance | 1E+12Ω (normal condition) |
13 | Max Board twist and wrap | ≤0.7% |
14 | High Vlotage endurance | 1.3KV/mm |
15 | Copper foil peel off endurance | 1.4N/mm |
16 | Hardness of resist ink | ≥6H |
17 | Flame resistance | 94V-0 |
18 | Impedance control | ±5% |
FAQ:
Q1. How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.1%. Secondly, during the guarantee period, if it's our fault, we will repair them and resend to you or we can discuss the detail, and find the final solution.
Q2: Is it OK to print my logo on product?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Q3: Do you offer guarantee for the products?
A: Yes, we offer 2 years warranty to our products.