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Use CVD.
jk
>-----Original Message-----
>From: TechNet [mailto:[log in to unmask]] On Behalf Of
>Gray, Matthew D HS-SNS
>Sent: Thursday, May 22, 2003 9:54 AM
>To: [log in to unmask]
>Subject: [TN] Conformal Coating Application Method for BGA
>
>
>Hello -
>
>I am requesting feedback to material and processes that have
>provided environmental performance protection for BGAs and
>other large array packages. The performance environment of
>consideration is corrosion and humidity.
>
>Can users provide particular details regarding application
>process spray (inclusion of steps used for flood/fill/etc),
>dip, other, and material that has provided a high amount of
>coverage and ability to protect electrical connections and
>components in humidity and salt fog environments. Ideally,
>these materials are below the parylene step. All feedback is
>appreciated.
>
>Regards - Matt
>
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Technet Mail List provided as a free service by IPC using LISTSERV 1.8e
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the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
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Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/html/forum.htm for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
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