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Metal Core PCB
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Double Sided Aluminum PCB Dual Layer Metal Core PCB Board for Switch Regulator
Double Sided Aluminum PCB Dual Layer Metal Core PCB Board for Switch Regulator
Printed Circuit Boards are custom-made products; the images and specifications provided are for reference only.
Brief Introduction
This 2-layer metal core PCB features a 2.0mm overall thickness (typical) and provides >2000V AC electrical isolation. The board is constructed with 2oz copper on each layer and a thermally conductive dielectric (1 W/mK) bonded to an aluminum base. Fabrication complies with IPC-6012 Class 2 standards from supplied Gerber files. The solder mask and silkscreen inks are from Taiyo, and the core CCL plate is supplied by Totking. Standard pack quantity is 25 boards per shipment.
PCB Specifications:
| PCB SIZE | 500 x 150mm=10PCS |
| BOARD TYPE | IMS mcpcb |
| Number of Layers | Double sided PCB, Metal core PCB |
| Surface Mount Components | YES |
| Through Hole Components | NO |
| LAYER STACKUP | copper ------- 70um(2oz) |
| dielectric material 75um | |
| copper ------- 70um(2oz) | |
| dielectric material 75um | |
| Aluminum backed 1.8mm | |
| TECHNOLOGY | |
| Minimum Trace and Space: | 5.98mil/6.18mil |
| Minimum / Maximum Holes: | 0.3/2.2mm |
| Number of Different Holes: | 5 |
| Number of Drill Holes: | 548 |
| Number of Milled Slots: | 11 |
| Number of Internal Cutouts: | 0 |
| Impedance Control | no |
| BOARD MATERIAL | |
| Thermal conductivity | 2W / MK |
| Final foil external: | 2oz |
| Final foil internal: | 2oz |
| Final height of PCB: | 2.1mm ±0.2 |
| PLATING AND COATING | |
| Surface Finish | Hot Air Soldering Leveling(HASL),lead free, Sn>=2.54µm |
| Solder Mask Apply To: | Top, 12micon Minimum. |
| Solder Mask Color: | Super White for LED |
| Solder Mask Type: | LPSM |
| CONTOUR/CUTTING | Routing |
| MARKING | |
| Side of Component Legend | TOP |
| Colour of Component Legend | Black |
| Manufacturer Name or Logo: | Marked on the board in a conductor and leged FREE AREA |
| VIA | via tented. |
| FLAMIBILITY RATING | UL 94-V0 Approval MIN. |
| DIMENSION TOLERANCE | |
| Outline dimension: | 0.0059" (0.15mm) |
| Board plating: | 0.0030" (0.076mm) |
| Drill tolerance: | 0.002" (0.05mm) |
| TEST | 100% Electrical Test prior shipment |
| TYPE OF ARTWORK TO BE SUPPLIED | email file, Gerber RS-274-X, PCBDOC etc |
| SERVICE AREA | Worldwide, Globally. |
Applications of Aluminum PCB:
Power Hybrid IC
Audio Frequency Apparatus:
Input / Output Amplifier, Balanced Amplifier, Pre-amplifier, Audio amplifier
Power supply device: Switch regulator, DC/AC Converter, Switch regulator
Communication electronic equipment: High frequency generator, Filter appliance, Transmission circuit
Office automation equipment: Motor drive
Automotive: Electronic regulator, Igniter, Power controller
Computer: CPU board, Floppy disk drive, Power supply unit
Power module: Converter, Solid relay, Rectifier bridge
Lamp lighting: All kinds of energy-saving and gorgeous LED lights
Layer up:
The most common MCPCB construction consists of the following three layers:
Metal Base Substrate, typically aluminum. Copper may be used for applications demanding higher thermal conductivity (401 W/mK versus 237 W/mK for aluminum), though at a greater cost.
Epoxy dielectric layer. This is the most critical layer, governing the board's thermal performance, electrical insulation strength, and solder joint reliability. A standard dielectric thermal conductivity is 1.0 W/mK, with higher values enhancing heat dissipation. While a thinner dielectric layer improves thermal transfer, it may compromise the board's ability to withstand high-voltage tests required by electrical safety standards, such as those in the lighting industry. The typical dielectric layer thickness is 100μm.
Top copper layer. A thicker copper layer improves lateral heat spreading but can challenge the fabrication of fine traces and spaces. Common copper weights are 1 oz (35μm) and 2 oz (70μm).
Manufacturing Process of MCPCB:
The process can be described as a flow diagram as follows.
Metal Core PCB Capability 2022:
| NO. | Parameter | Value |
| 1 | Type of Metal Core | Aluminum, Copper, Iron |
| 2 | Model of Metal Core | A1100, A5052, A6061, A6063, C1100 |
| 3 | Surface Finish | HASL, Immersion Gold, Immersion Silver, OSP |
| 4 | Thickness of Surface plating | HASL: Sn>2.54µm, ENIG: Au 0.025-0.1µm, Ni 2.5-5µm |
| 5 | Layer Count | 1-2 Layers |
| 6 | Maximum of Board Size | 23" x 46" (584mm×1168mm) |
| 7 | Mininum of Board Size | 0.1969" x 0.1969" (5mm×5mm) |
| 8 | Board Thickness | 0.0157" x 0.2362" (0.4-6.0mm) |
| 9 | Copper Thickness | 0.5OZ(17.5µm)，1OZ(35µm)，2OZ(70µm)，3OZ(105µm)，4OZ(140µm) to 10oz (350µm) |
| 10 | Minimum Track Width | 5mil (0.127mm) |
| 11 | Minimum Space | 5mil (0.127mm) |
| 12 | Minimum Hole Size | 0.0197" (0.5mm) |
| 13 | Maximum Hole Size | No limit |
| 14 | Minimum Holes Punched | PCB thickness <1.0mm: 0.0394" (1.0mm) |
| PCB thikness 1.2-3.0mm: 0.0591" (1.5mm) | ||
| 15 | PTH Wall Thickness | >20µm |
| 16 | Tolerance of PTH | ±0.00295" (0.075mm) |
| 17 | Tolerance of NPTH | ±0.00197" (0.05mm) |
| 18 | Deviation of Hole Position | ±0.00394" (0.10mm) |
| 19 | Outline Tolerance | Routing: ±0.00394" (0.1mm) |
| Punching: ±0.00591" (0.15mm) | ||
| 20 | Angle of V-cut | 30°, 45°, 60° |
| 21 | V-cut Size | 0.1969" x 47.24" (5mm×1200mm) |
| 22 | Thickness of V-cut Board | 0.0236" x 0.1181" (0.6-3mm) |
| 23 | Tolerance of V-cut Angle | ±5º |
| 24 | V-CUT Verticality | ≤0.0059" (0.15mm) |
| 25 | Minimum Square Slots Punched | PCB thickness < 1.0mm: 0.0315" x 0.0315" (0.8 x 0.8mm) |
| PCB thickness 1.2-3.0mm: 0.0394" x 0.0394" (1.0 x 1.0mm) | ||
| 26 | Minimum BGA PAD | 0.01378" (0.35mm) |
| 27 | Minimum Width of Solder Mask Bridge. | 8mil (0.2032mm) |
| 28 | Minimum Thickness of Solder Mask | >13µm (0.013mm) |
| 29 | Insulation Resistance | 1012ΩNormal |
| 30 | Peel-off Strength | 2.2N/mm |
| 31 | Solder float | 260℃3min |
| 32 | E-test Voltage | 50-250V |
| 33 | Thermal Conductivity | 0.8-8W/M.K |
| 34 | Warp or Twist | ≤0.5% |
| 35 | Flammability | FV-0 |
| 36 | Minimum Height of Component indicator | 0.0059"(0.15mm) |
| 37 | Minimum Open Solder Mask on Pad | 0.000394" (0.01mm) |