JW,

The answer is no.  The OSP is supposed to last up to 6 months.  Once you have process the PWB through the oven the first time the OSP is gone and then oxidation will start to occur so you want to process as soon as possible. Unless you have a harsh environment (high sulfur) you should be good for a few days.


Russell Nowland
Alcatel-Lucent
Advanced Manufacturing Engineer
Address: 14000 Quail Spring Parkway, Suite 300
Oklahoma City, OK 73134
email: [log in to unmask]
Desk: 405-302-1660
Cell: 405-203-0034
Fax: 405-302-1622
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of J W
Sent: Monday, July 19, 2010 7:45 AM
To: [log in to unmask]
Subject: [TN] OSP Coating

Hi,

Is it true when a PCB is OSP coated it needs to be populated within 24 hrs
of opening the package due to oxidation?

Thanks,
JW


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