Double Sided Thick Copper PWB Finished Copper Thickness 3oz 2.4mm manufacturer from China China PCB Board Online Market

Double Sided Thick Copper PWB Finished Copper Thickness 3oz 2.4mm

Place of Origin:

Zhejiang, China (Mainland)


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Double Sided Thick Copper PWB Finished Copper Thickness 3oz 2.4mm

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Double Sided Thick Copper PWB Finished Copper Thickness 3oz 2.4mm

Heavy Copper PCB General Info

Heavy Copper Board does not have a set of definition per IPC. According to PCB industry, however, peopel generally use this name to identify a printed circuit board with copper conductors 3 oz/ft2 - 10 oz/ft2 in inner and/or outer layers. And Extreme heavy copper PCB refers to 20 oz/ft2 to 200 oz/ft2 printed circuit board

Heavy copper normally used for a various products but not limited to: high power distribution, heat dissipation, planar transformers, power convertors, and so on

PCB Capability

		High precision prototype	PCB bulk production
Max Layers		1-28 layers	1-14 layers
MIN Line width(mil)		3mil	4mil
MIN Line space(mil)		3mil	4mil
Min via (mechanical drilling)	Board thickness≤1.2mm	0.15mm	0.2mm
	Board thickness≤2.5mm	0.2mm	0.3mm
	Board thickness2.5mm	Aspect Ration≤13:1	Aspect Ration≤13:1
Aspect Ration		Aspect Ration≤13:1	Aspect Ration≤13:1
Board thickness	MAX	8mm	7mm
Board thickness	MIN	2 layers:0.2mm;4 layers:0.35mm;6 layers:0.55mm;8 layers:0.7mm;10 layers:0.9mm	2 layers:0.2mm;4 layers:0.4mm;6 layers:0.6mm;8layers:0.8mm
MAX Board size		*6101200mm**	*6101200mm**
Max copper thickness		0.5-6oz	0.5-6oz
Immersion Gold/ Gold Plated Thickness		Immersion Gold:Au,1—8u” Gold finger:Au,1—150u” Gold Plated:Au,1—150u” Nickel Plated :50—500u”
Hole copper thick		25um 1mil	25um 1mil
Tolerance	Board thickness	Board thickness≤1.0mm:+/-0.1mm 1.0mm<Board thickness≤2.0mm:+/-10% Board thickness>2.0mm:+/-8%	Board thickness≤1.0mm:+/-0.1mm 1.0mm<Board thickness≤2.0mm:+/-10% Board thickness>2.0mm:+/-8%
	Outline Tolerance	≤100mm:+/-0.1mm 100< ≤300mm:+/-0.15mm >300mm:+/-0.2mm	≤100mm:+/-0.13mm 100< ≤300mm:+/-0.15mm >300mm:+/-0.2mm
	Impedance	±10%	±10%
MIN Solder mask bridge		0.08mm	0.10mm
Plugging Vias capability		0.25mm--0.60mm	0.70mm--1.00mm

Design Guide for Heavy Copper PCB

Typical conductor width/spacing/thickness tolerance is +/-20%, although tighter tolerance is achievable.

The minimum width and thickness of a heavy copper PCB conductor is determined primarily on the basis of the current carrying capacity required and the maximum permissible conductor temperature rise.

A circuit board trace, depending on its size and manufacturing process, may not be rectangular in shape. Heavy copper conductors can significantly add to the overall board thickness.

Additive (plating) processed are preferred to subtractive (etching) processes but are more expensive).