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November 1997

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Subject:
From:
"Lepsche, Thomas G (NM75)" <[log in to unmask]>
Reply To:
TechNet Mail Forum.
Date:
Fri, 21 Nov 1997 14:42:00 -0700
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text/plain (53 lines)
Sheila,

        I believe the answer to be no.  Conformal Coating also provides a
barrier over components, component leads and the reflowed, hand or wave
soldered soldered joints. In order to provide the same protection the
soldermask would need to also be applied after component placement and
soldering and then by definition I believe it to be a conformal coating.
        I hope this answers your question - if not please contact me.
Semper Fi
Tom

>----------
>From:  Sheila Smith[SMTP:[log in to unmask]]
>Sent:  Friday, November 21, 1997 2:10 PM
>To:    [log in to unmask]
>Subject:       [TN] ASSY:  Soldermask vs conformal coat
>
>Technetters,
>
>In a practical sense (specifications and design guidelines aside) can
>permanent soldermask be used instead of conformal coating to provide
>environmental protection to a PWB?????????  Thanks for your
>insight/opinions/etc.
>
>Sheila Smith, Tracor AES
>
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