In a message dated 98-06-25 10:18:12 EDT, you write:

<<  > If the solder mask in the vias has been cured (full plug), is there
 > any
 > > way to remove it without damaging the boards ?  There's no solder
 > mask
 > > on the surface beside in the vias. Thanks.
 > > >>
Richard:

A number of vendors to the PCB industry make strippers that stripped full
cured LPI, they do not do it fast, and there can be, but is not always, some
attack on the buttercoat.  We have seen that inexpensive laminate is more
suceptible (sp?) to attack than the costlier stuff (What a surprise!).

If you want more info on one of the better ones available, contact me directly
please.

Rudy Sedlak
RD Chemical Company
Mountain View CA
phone: 650-962-8004
fax 650-962-0370

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