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LT CIRCUIT CO.,LTD Printed Circuit Board Manufacturer, focus on Multilayer PCB and Metal Core PCB.
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Lead Free HASL 4 OZ Heavy Copper PCB Printed Circuit Board Manufacturing

LT CIRCUIT CO.,LTD
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LT CIRCUIT CO.,LTD
Country/Region: China
Tel: 86-755-23005997
Contact Person:
Ms Ashley

Lead Free HASL 4 OZ Heavy Copper PCB Printed Circuit Board Manufacturing

Brand Name : LT Circuit
Certification : UL E354810,SGS
Place of Origin : China
MOQ : NO MOQ
Price : Negotiable
Payment Terms : T/T,OA, L/C, Western Union
Supply Ability : Ten thousand square meters/month
Delivery Time : 5-12Days
Packaging Details : 20pcs/vacuum bag+export packing
Copper Thickness : 4 OZ
Surface Plating : Lead Free HASL
Layer : 2
Material : FR4
Board Thickness : 2.0mm
Solder Mask : Green
Silkscreen : White
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Lead Free HASL 4 OZ Heavy Copper PCB Printed Circuit Board Manufacturing


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


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).


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 thickness1.2mm

0.15mm

0.2mm

Board thickness2.5mm

0.2mm

0.3mm

Board thickness2.5mm

Aspect Ration13:1

Aspect Ration13:1

Aspect Ration

Aspect Ration13:1

Aspect Ration13:1

Board thickness

MAX

8mm

7mm

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

610*1200mm

610*1200mm

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 thickness1.0mm:+/-0.1mm
1.0mm<Board thickness
2.0mm:+/-10%
Board thickness>2.0mm:+/-8%

Board thickness1.0mm:+/-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


Capability of Heavy Copper PCB

Base material: FR4/Aluminum

Copper thickness: 4 OZ~10 OZ

Extreme Heavy Copper: 20~200 OZ

Outline: Routing, punching, V-Cut

Soldermask: White/Black/Blue/Green/Red Oil

Surface finishing: Immersion Gold, HASL, OSP



Product Tags:

blank copper pcb board

      

Printed Circuit Board Manufacturing

      
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