Heavy Copper PCB are printed circuit boards with 3 or more ounces of finished copper in the inner and/or outer layers.
While there is no standard definition of Heavy Copper, it is generally accepted that if 3 ounces (oz) of copper or more is used on the internal and external layers of a printed circuit board, it is called a heavy copper PCB. Any circuit with a copper thickness of more than 4 oz per square foot (ft2) is also categorized as a heavy copper PCB. Extreme copper means 20 oz per ft2 to 200 oz per ft2.
When the electronic device need high power or current through, Then we need consider heave copper to control the thermal on PCB
The benefits of heavy copper in PCBs:
Reduction of thermal strain
Better current conductivity
Can survive repeated thermal cycling
Smaller PCB size due to layering of copper
Increased connector site strength
Payment & Shipping Terms:
|Material:||Fr4 Double Sided Pcb||Color:||Green|
|Min Hole Size:||0.2MM||Surface Finish:||HASL|
|Layer:||2||Min Line Width:||8mil|
double sided pcb board,
double side pcb
Electronic Double Sided Pcb&Pcba Manufacturing Elevator Pcba/Pcb Assembly for Electronics
|Product Name||PCB/Circuit board|
|3||Min.Board Thickness||2-layer 0.15mm|
|10||Hole position deviation||±0.05mm (2mil)|
|11||Outline tolerance||±0.10mm (4mil)|
|13||Insulation Resistance||>1012 Ω Normal|
|16||Thermal stress||288 ℃ 10 Sec|
|19||Surface Finished||HAL,ENIG,Imsn OSP,Plating AG,Plating gold|
Including Engineering, layout, programming,protyping, components sourcing, surface-mount assembly,through-hole assembly,inspection, test
2.Finished product manufacture: electronic PCBA part+housing+package...
Including plastic part, molding enclosure,metal processing,packages, etc.
3.Guarantee Period of Product and After-sale Service
1) Define warranty periold in the contract.
2) Within the warranty period, free maintenance or replacement of parts for the products,if any quality problem.
3) Beyond the warranty period ,charge for maintenance material only.
4) If products can not be mantained any more,we dispose the waste reasonablly, do not pollute the environment is very important!