Even on the Cray computer boards we build, we are phasing out vapor phase.
As many, we have no problems with BGA's, CCGA's (over 1100 I/O's), and the
rest using more "modern" convection technology as well as reworking with
more advanced equipment types.

Earl Moon
----- Original Message -----
From: Martin Farrell <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, September 02, 1999 8:54 AM
Subject: [TN] Vapour Phase vs Convection Reflow


> Recently it was mentioned to me that some companies have reverted to
> vapour phase (from convection reflow) when reflowing BGA's. My boss
> has thus sent me on the case. Has anyone out there reverted back to
> vapour phase for this purpose? If so, what has vapour phase added to
> your process which convection reflow could not?
> Apologies for another question!!
>
> Martin Farrell (Chemist/ Quality Engineer),
> Marconi Electronic Systems,
> Edinburgh.
>
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