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Hobbiest BGA prototyping

2006-04-10 by David Hawkins

Hi all,

We've had the discussion of

'how do I use BGA parts for small quantity designs?'

a few times. With the option of toaster oven reflow
ovens looking like they had the best potential for
a hobbiest.

I was at the embedded systems conference in San Jose
last week (I didn't have time to check out the
Philips booth, so nothing to report there - sorry).

I did find an assembly company ...

http://www.screamingcircuits.com/

click on the quote/order link (it seems to be a bit
slow right now ...)

Then for a totally made-up design (with a single
BGA part, and SMT parts for the rest) I entered:

Board Qty:        10
Total #parts:     20
Double-sided SMT: No
Lead-free:        No
SMT:              20
Fine pitch:        5
Thru-hole:         0
BGA:               1

10-day delivery time was $660 total, so $66 per board.

So, this is far from the $3000 I have paid for a subcontractor
to load lots of BGA parts ... not too unreasonable for a
small run of boards ... perhaps too much for a hobby project.

But hey, I figured someone might be interested in these
numbers, and perhaps you can enter a real design and
tell us how it compares to what you paid :)

Cheers
Dave

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