TECHNET Archives

February 1999

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

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

Print Reply
Subject:
From:
Anne Ledger <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 17 Feb 1999 10:27:36 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (32 lines)
Good Morning Technetters,

Thanks for all the help on the board shop for the mil spec multilayer
board.  I have passed the info on to the powers that be.  Today I have a
different problem, pertaining to SMT assy and solder paste.

We have made a board that has 15 mil pitch, using 8 mil pads connected
to 8 mil tracks (some).  The problem is that the SMT is cleared on the
ends by 5 mils and the track width is pulling the paste from the pad and
causing the part not to adhere.  What can we do to block the paste from
traveling down the track at this point.  We have the boards made and
would prefer a good rework procedure instead of remaking the boards.

Thanks in advance for the assistance.

Anne Ledger
Mfg. Engineering Dept
EMDS, Inc.
[log in to unmask]

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet 
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312
################################################################


ATOM RSS1 RSS2