TECHNET Archives

March 2013

TechNet@IPC.ORG
Options: Use Monospaced Font
Show Text Part by Default
Condense Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Sender:
TechNet <[log in to unmask]>
X-To:
[log in to unmask]
Date:
Sat, 16 Mar 2013 11:10:07 -0500
Reply-To:
TechNet E-Mail Forum <[log in to unmask]>, Ramakrishnan Saravanan <[log in to unmask]>
Subject:
Solder Mask sensitivity to environment
MIME-Version:
1.0
Message-ID:
<[log in to unmask]>
Content-Type:
text/plain; charset="UTF-8"
Content-Transfer-Encoding:
quoted-printable
From:
Ramakrishnan Saravanan <[log in to unmask]>
Parts/Attachments:
text/plain (10 lines) 
Hi, 

Our contract suppliers have supplied a batch of PCBs with less solder mask thickness. ( 4 micron on the knee and 8 microns on the track center). Since we specified only solder mask coverage in the procurement spec, we can't reject.  The PCBs are meant for High reliability applications. 

Is there any way to find out moisture sensitivity of the solder mask on actual board where IPC comb pattern is not available ?.

regards,

R.Saravanan

ATOM RSS1 RSS2