I recently read about having the pcb fab house drill out vias from the
surface to some depth. The article discussed using this technique to
reduce stubs in the Z-axis, but I think it would work in your case too.
I have no experience here though, and can't say if the operation is an
having slept on this
You can do this as a single project.
But you need to split the plated cnc file up into two files. One file
for your blind vias and a second for the vias that penetrate all layers.
My understanding is that if you do this as a four layer board, the fab
shop will build the
Hi Steve,
Sorry I should have described things better. The non-component side of
the board has exposed pads that make deliberate contact with the body
for a couple of selected nets on the PCB. All other nets on the PCB (eg
power) can not be exposed on this side of the board. I had considered
Neil,
Another way to do this is to break your design up into two boards or two
sets of gerber files and then combined the two sets of gerbers into one
complete set.
The first set would have your top layer and all routing layers on it.
The second set would contain your bottom layers. You will
Neil,
If the requirement is not to have the board not make electrical contact
with skin, why not put an insulator on the back of the board? There are
various types of tapes and even sprayes that can be used to encapsolate
one or both sides.
Steve Meier
Neil Webster wrote:
Hi all,
I have an
Hi all,
I have an application where I am creating a small PCB as the basis of an
active electrode. The non-component side of the board is in contact with
skin and exposed vias on this side of the board therefore must be
avoided. In the previous generation of the design, the circuit was
simple
Sorry, no change in the blind/buried via front yet.
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