2007-01-19 03:53:46 · 6 answers · asked by rsola63 1 in Science & Mathematics ➔ Engineering
Not very much. The plating is usually very thin.
2007-01-19 04:00:49 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The Gold content of a circuit board depends on the application, if you are making a low speed circuit there will be no gold it will be mainly copper as they are very close to having the same conductance, if you where to start increasing the speed of a circuit you would want the tracks time constant to be as low as possible so a lot of emphasis will be put onto good layout disipline to reduce the tracks cross talk, you would then also reduce the tracks resistance, this is intially done by using gold plating as gold has a very low contact resistance much lower than either silver or copper, if you needed to reduce the resistance even further you would make the track out of silver as this has the lowest resistance
2007-01-19 04:34:23 · answer #2 · answered by Anonymous · 0⤊ 0⤋
It depends on the circuit board of course. The first poster is correct in that it is plated, so there is not much to begin with. It is widely used for CPU's because it conducts electricity much better than silver, copper, etc.
And why gold plated you may ask? Well an electrical charge is carried by the outside of a conductor. It would not help more to make the whole thing gold.
-Dio
2007-01-19 04:03:36 · answer #3 · answered by diogenese19348 6 · 0⤊ 0⤋
I would think that would depend on the circut board. Different ones do different things and have various functions and each kind is different. My father used to fix televisions and so I've seen them for that, but of course something more complex like a computer would be different.I don't think it's very much.
2007-01-19 04:04:15 · answer #4 · answered by Anonymous · 0⤊ 0⤋
.100 mg per board
6.5 gm in one kg
2015-07-22 21:43:26 · answer #5 · answered by sandeep 1 · 0⤊ 0⤋
Pretty much zero. It contaminates solder.
2007-01-19 04:08:05 · answer #6 · answered by Gene 7 · 0⤊ 0⤋