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Great PCB Technology Co.,Ltd.
Heavy Copper PCB

High Power Equipment With 12OZ Copper

Heavy Copper PCB

Thick Copper PCB for Power Supply

Heavy Copper PCB

Heavy Copper PCB for Electric Vehicle Charging Solution

Heavy Copper PCB

Heavy Copper PCB

Heavy Copper PCB

Thick Copper Printed Circuit Board for Power Module

Heavy Copper PCB

Heavy Copper PCBs

Heavy Copper PCB
Heavy Copper PCB
Heavy Copper PCB
Heavy Copper PCB
Heavy Copper PCB
Heavy Copper PCB

Heavy Copper PCB


Our are professional technology research and development team and production experience to manufacturing Heavy Copper boards to be produced up to 20 layers.
We have produce a lot of 25oz per layer with two-sided layer for extreme Heavy Copper pcb on this year. Application to High power planar transformers, Battery Charger and Monitoring Systems, etc...

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Manufacturing Capacity

Definition of Heavy copper circuit board
Heavy copper circuit board refers to the printed circuit board with copper thickness ≥ 2oz on the inner or outer layer. Under the condition of standardizing the design circuit line width and line spacing, increasing the copper thickness is equivalent to increasing the circuit cross-sectional area, which can carry larger Current, copper foil has a small electrical conductivity, and the temperature rise is small under the condition of high current, so the heat generation can be reduced, thereby reducing thermal strain, in addition, copper foil also has high thermal conductivity (thermal conductivity 401W/mK), It can play an important role in improving the heat dissipation performance, so the thick copper circuit board has the characteristics of carrying large current, reducing thermal strain and good heat dissipation.
Copper Inlay PCB
Copper inlay PCB is made of FR4 and heat-dissipating metal materials(MCPCB). This process is realized by embedding copper metal in the circuit board. The heat emitted by the heating element installed on the circuit board can be embedded into the radiator on the bottom side through copper.

EngineerItemManufacturing Capability
MaterialTypeFR-4,HIGH TG FR-4-TG170/TG180,CEM-3,Halogen- Free,Rogers,Arlon,Taconic,Isola,PTFE, Bergquist,Polyimide, Aluminum base, Copper base,Heavy copper foil
Thickness0.2mm~10mm
Production TypeSurface TreatmentHASL,HASL lead-free,HAL,Flash gold,immersion gold,OSP,Gold Finger Palting,Selective thick gold plating, immersion silver,immersion tin, Carbon ink,peelable mask
No.of Layer1L-56L
Cut LaminationWorking Panel SizeMax:650mm×1200mm
Inner LayerInner Core thickness0.1~2.0mm
Conductor Width/spacingMin:3/3mil
Alignment2.0mil
DimensionBoard Thickness Tolerance±10﹪
Inter layer Alignment±3mil
DrillingDrilling DiameterMin:0.15MM   (Laser Drill:0.1MM)
PTH Tolerance±0.075mm
NPTH Tolerance±0.05mm
Hole Position Tolerance±0.076mm
PTH+Panel PlatingHole Wall Copper Thickness≥20um
Uniformity≥90%
Aspect Ratio12:01
Outer LayerConductor WidthMin:3mil
Conductor SpacingMin:3mil
Pattern PlatingFinished Copper Thickness1oz~10oz
EtchingUnder Cut≥2.0
EING/FLASH GOLDNickel Thickness≥100u″
Gold Thickness1~3u″
Solder MaskThickness10~25um
Solder Mask Bridge4mil
Plug Hole Dia0.3~0.6mm
Solder Mask ColorGreen, Matte Green,White,Matte White,Black,Matte Black,Yellow,Red,Blue, Transparent ink
Silkscreen ColorWhite, Black, Yellow, Red, Blue
LegendLine Width/Line Spacing5/5mil
Gold FingerNickel Thickness≥120u″
Gold Thickness1~80u″
Hot Air LevelTin Thickness100-300u″
OSPMembrane Thickness0.2~0.4um
RoutingTolerance of Dimension±0.1mm
Slot sizeMin:0.6mm
Cutter Diameter0.8mm-2.4mm
PunchingOutline Tolerance±0.1mm
Slot SizeMin:0.7mm
V-CUTV-CUT DimensionMin:60mm
Angle15°30°45°
Remain Thickness Tolerance±0.1mm
BevelingBeveling Dimension30-300mm
TestTesting Voltage250V
Max.Dimension540×400mm
Impedance ControlTolerance±10%
Peel Strength
1.4N/mm

Applications:
As automotive electronics, battery charger and monitoring system, power planar transformer and the rapid development of electric power communication technology, more than 5 oz to 20 oz and gradually become a kind of super thick copper foil board has a broad market prospect of application, the special PCB printed circuit board not only for the electrical connection in the electronic components to provide necessary and mechanical support, Also can provide high current and high reliability of ultra thick copper foil printed board.
Applications of Heavy copper pcb: Aerospace, Satellite Communication, Network base load station, Hybrid integrated circuit, Power supply automotive electronics, Battery charger and monitoring system, Power planar transformer, Electric vehicle charging solution infrastructure, Charging Station or Charging Point,Led Lighting and other high-tech field.

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