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55:35 1996 |
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When deciding where to place thermocouples, be careful about jumping to
the conclusion that the centre ball is going to be the coolest. Depending
on the relative sizes of the BGA substrate versus the overmoulding, you
may find the outside balls to be cooler. It is safest to thermocouple
both centre and corner, as well as the top of the package.
Lothar Thole
QPSX Communications Pty Ltd
33 Richardson Street
West Perth WA 6005 Australia
Tel: +61-9-262-2000
Fax: +61-9-324-1642
email: [log in to unmask]
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