Global Success Circuits Co.,Ltd
Global Success Circuits Co.,Ltd World’s Professional PCB Manufacturer
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4 Layer High TG Heavy Copper PCB Board 3 Oz Copper Thickness Immersion Gold
applications:
Weapons Control Systems
Power Supplies for Radar Systems
Primary and Secondary Windings of High Power Planar Transformers
Power Distribution Panels
Battery Charger and Monitoring Systems
Power electronics products using heavy copper circuitry have been in use for many years in the military and aerospace industry and are gaining momentum as a technology of choice in industrial applications. It's believed that market requirements will extend the application of this type of product in the near future.
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Category |
Description |
Capability |
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Laminate Material |
FR4, High TG FR4(tg150,tg170,tg180) |
We will order other special material accoprding to your request |
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Board Layers |
Maximum layers |
1-18layers |
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Size |
Maximum finished dimensions |
500*1200mm |
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Board Thickness |
Minimum and Maximum |
0.2-3.2mm |
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Copper |
Outer copper weight |
0.5oz (17um) - 4oz (140um) |
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Inner copper weight |
0.5oz (17um) - 4 oz (105um) |
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Drilling |
Minimum drilling size |
0.15mm |
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Drill Deviation (True position size) |
2mil (0.050mm) |
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PTH hole tolerance |
3mil (0.075mm) |
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N-PTH hole tolerance |
2mil (0.050mm) |
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Minimum hole wall thickness |
20um |
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Angle of Countersink |
80°, 90°, 100°, 120° |
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Circuit line |
Minimum width |
0.1mm/ 4mil |
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Minimum space |
0.1mm/ 4mil |
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Inner Layers |
Minimum space from drilling to inner pattern |
6mil (0.15mm) |
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Minimum space from annular ring to inner pattern |
6mil (0.15mm) |
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Layer-to-layer registration |
3mil (0.08mm) |
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Board Profilling |
Hole to board edge tolerance |
±4mil (0.1mm) |
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Pattern to board edge tolerance |
±4mil (0.1mm) |
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CNC Tolerance |
±4mil (0.1mm) |
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Minmum thickness after V-Cut |
12mil (0.3mm) |
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V-Cut tolerance |
±5mil (0.12mm) |
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V-Cut Angle |
20,30,45,60 |
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Solder mask |
Color |
green, light green, matte green, white black,matte black,yellow,red, blue |
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Thickness |
≥17um |
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Silkscreen |
Color |
White, black, yellow, |
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Minimum line height |
≥0.0625mm |
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Minimum line width |
≥0.125mm |
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Surface Finish |
HASL, HASL pb free, immersion gold, immersion silver, O.S.P |
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Certification |
IPC-A-600 Class II/III, UL E324220, ISO 9001,ISO/TS16949, ROHS |
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The construction of a heavy copper circuit endows a board with benefits such as:
Increased endurance to thermal strains.
Increased current carrying capacity.
Increased mechanical strength at connector sites and in PTH holes.
Use of exotic materials to their full potential (i.e., high temperature) without circuit failure.
Reduced product size by incorporating multiple copper weights on the same layer of circuitry (see Figure 1).
Heavy copper plated vias carry higher current through the board and help to transfer heat to an external heatsink.
On-board heatsinks directly plated onto the board surface using up to 120-oz copper planes.
On-board high-power-density planar transformers