# PCB copper thickness

oskaratk 2014-04-12 01:04:57 8012 Views6 Replies
Howdy,

I am designing a board where some tracks need yo carry up to 1.5A

So, how thick are the copper layers on a 2 layer board, please?

Thanks
Oskar
2022-04-17 22:01:54

when designing in EDA software, just specify 2.75 mils and I think your copper traces will be good to handle most forms of current. Check on this article to have a clue on how you should do the calculations of the copper traces and tracks when doing the actual design of a printed circuit board.

simonmugo
2015-01-13 08:19:06 i used to have a little kit from maplins that i used when making circuit boards it removes the copper
Ron
KavomatovlKiz
2014-04-15 14:05:17 Hey guys,

2oz copper is available from DFRobot PCB service. If you do require, please directly email [email protected]

Attach you design and detail requirements about the PCB production. ;)

Best
Lauren
Lauren
2014-04-13 02:18:20 That sounds closer to 2oz copper thickness.  You will probably have to ask the board house if they carry that kind. kc9on
2014-04-12 12:35:18 [quote="kc9on"]
I am not sure what DFRobot uses but most places I believe use 1oz for 2 sided boards.

That translates to 1oz of copper over a square foot of PCB which is somewhere around .00137"  (1.37mils)
[/quote]

that then would be 35 micrometer and requiring  track width of approx 30mils .. argh. I was hoping for a 70 micrometer ( 2.75 mils) thinkness

Take a TI DRV8844 for example. Package HTSSOP, the pins are .3mm wide (12mil) for an 2.5 A current. That plain and simple requires a copper thickness of 70 micrometer( 2.75mil) or 2oz

Thanks
Oskar
oskaratk
2014-04-12 11:51:55 I am not sure what DFRobot uses but most places I believe use 1oz for 2 sided boards.

That translates to 1oz of copper over a square foot of PCB which is somewhere around .00137"  (1.37mils)
kc9on