Peter,
 5 zones should do well enough, I think. We solder up to 2,500 ball BGAs in such ovens, all seem to be OK.

Ingemar Hernefjord
Ericsson Microwave Systems


-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Crain, Peter (GE
Energy)
Sent: den 20 september 2004 23:07
To: [log in to unmask]
Subject: [TN] New reflow oven needed for BGAs???


Hi all,

We are looking at placing BGAs. We currently use a 5 zone reflow oven that
does a great job of soldering all other components. In fact, we only have a
few profiles which are used on many products.

Is there a need for more zones when going to BGA? Does size BGA size matter?

Thanks in advance,

Peter

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