 
| Subject: | |
| From: | |
| Date: | Mon, 12 Jun 95 07:18:03 PDT |
| Content-Type: | text/plain |
| Parts/Attachments: |
|
|
Jim Mc Neal asked when "tented" vias are required with LPI soldremask.
Here (Aerojet) our application is space / vacume environment.
_When_ we require a soldermask (smt parts bonded to pwb _with_
vias under the part) we will tent the via. on all other applications
our designs are pads-only (so we don't need _any_ soldermask)
We tent so that we don't entrap air (or contaminants) in the pwb.
HTH,
Bill Gaines
AeroJet (for $) 1100 Hollyvale, Azusa, Calif. 91702-0298
IEPS (for info) [log in to unmask]
IHPVA (for speed & fun) P.O. Box 51255, IN, IN 46251-0255
SCCA (for trophys) Solo II (818-988-RACE)
|
|
|
