If you need only small sizes of boards you may hot tin them.
I don't like those "you certainly die within a year if you only look at
this stuff" safety datasheets.
I would rather have uncoated copper, if you protect it with laquer i see no
disadvantage.
What about electroplating? i mean making negative photoresist and then
electroplating.
after that remove the resist and etch. Wouldn't this allow for less
dangerous chemicals
than electroless plating?
st
On Thu, 13 Nov 2003 11:37:03 -0800 (PST), mpdickens <
md30022@...>
wrote:
>
> --- Ted Huntington <thunting@...> wrote:
>> I bought some of this but have not tried it yet. Does it work?
>
> It works. You can expect a layer of tin around 0.0003
> to 0.0004 of an inch in thickness depending on the
> temperature of the tinning bath, how long the pcb is
> in the tinning bath and how clean the board (And
> tinning environment is...).
>
> Always clean and degrease the board prior to tinning.
> Make sure the tinning environment is clean (Whatever
> you have the solution in...) and the temperature of
> the tinning bath is reasonable.
>
>
> Best regards
>
> Marvin Dickens
> Alpharetta, Georgia USA
>
> =====
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