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October 2002

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Subject:
From:
"Nowland, Russell Howard (Russell)" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 2 Oct 2002 16:47:48 -0500
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Paul,

We prefer 0.020-inch clearance but have gone as low as 0.016-inch without solder bridges.  We have also shrunk the soldermask to gain additional metal-to-metal clearance.

Russell Nowland
Lucent Technologies
Oklahoma City Works
Phone: (405) 782-7765
Fax: (405) 782-7905
email: [log in to unmask]


-----Original Message-----
From: Paul Truit [mailto:[log in to unmask]]
Sent: Wednesday, October 02, 2002 3:30 PM
To: [log in to unmask]
Subject: [TN] Via clearance


On High density designs that will be wave soldered, What should the
minimum clearance from one unmasked via to another unmasked via be so
that solder bridges are not a problem?
--
Paul Truit, Mfg. Eng.
RBB Systems, Inc.
4265C E. Lincolnway
Wooster, OH  44691
Ph. (330) 567-2906 ext 514
Fax (330) 263-5324
Email: [log in to unmask]

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