What is the thickness of the conducting part in a PCB?
Answer:
It varies with the requirement of the application. Board shops usually talk about "ounces of copper", having to do with the actual weight of material per square area. To convert from a couple of commonly used thicknesses:
1 ounce copper = 0.0014 inches = 0.0356mm
2 ounce copper = 0.0028 inches = 0.0711mm
Some standard finished thicknesses for boards are
0.031", 0.039" and 0.062" (0.8mm, 1.0mm and 1.6mm)
As far materials go, that is also variable, but there's a lot of commonality between most manufacturers. Here's a link that will show you some of the more commonly used materials and thicknesses, and how they typically stack multilayer boards:
http://www.ul.ie/~rinne/ee6471/ee6471%20...
The blank boards that I buy are .0014" thick copper on a .0625" reinforced epoxy board. The thickness does vary a bit from board to board but that will give you a general idea.
The thickness varies according to the type of circuit u r using(analog/digital) or Supply or ground etc.,
but the ground line is greater than supply than the connecting lines.
Regarding the material for PCB base,epoxy resins which are insulators are used.
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