> I routinly make two layer boards but do not plate thru holes. I find
> that by adding bottom traces and resistors or DIP chips, I can make a
> smaller board without adding to the costs. Actually saving board
> material saves on costs.
Of course, sorry, i meant that too..
I too make 2-layer boards with no plating just fine...
Somehow in my head "multilayer" was linked to "more than 2"
I find it still a bit harder to do 2-sided with toner transfer so i try
to keep it on one.
Often i have to etch away the other side blank because my pcb material is
mostly
two-sided.. Waste, i know, i ought to get the 2-sided thing working as
good as the
one-sided.
>
> I made a 4 layer board by overlapping 2 2 layer boards. I needed
> huge power traces and could not get them to the TSSOP chip and add
> all the support caps and resistors. Simple square posts standoffs
> carry the current.
How did you contact the middle layer? with no throughhole plating?
ST