1mm BGA virgin

So, having had one of those SMD-friendly infra-red oven heaters bought
for me as a birthday present, I'm trying to get my first ever BGA pcb
made, and I'm finding it more difficult than I'd expected. It's been
pretty easy to get PCBs manufactured before, so I'm wondering if I'm
doing something fundamentally wrong...

There's an image of the prototype board (it's basically a pin-header
mount for an ADV212 part so I can easily test out my connectivity) at
http://www.gornall.net/misc/adv212.gif. Each of the balls is 1mm
apart, and there's an array of them 11x11. I need to run vias in-
between the balls to other layers in order for it to route correctly,
and those vias have therefore to be rather small (6mil seems to fit
nicely between the balls).

My problem is finding somewhere that can drill such small vias
(pcbpool's DRU file prevents this, as does SunStone's, as does
custompcb.com, as does pcbzip.com, as does silvercircuits.com, as
does ... you get the picture). So, with no-one being able to
manufacture it, and this being my first ever BGA, I assume I'm doing
something wrong.


So:
o Is there a PCB manufacturer who can drill tiny vias like this ?
o Am I doing this wrong ? Better: How am I going wrong ? :)
o What SMT pads / via sizes would you use for a 1mm BGA part ?


Ideally I'd like to use a PCB manufacturer who takes Eagle BRD files -
I think I failed dismally at making the Gerber 274X files for
pcbfabexpress.com, though their customer service hasn't been wonderful
so far, so I'm not sure...

Anyone any ideas ?

Any help gratefully received :)

Simon
.

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