pcb pooling for BGAs

[[email protected]]

Guys

In the uk we have easy access to PCB-pool and PCB train. These
companies provide prototypes where the tooling is shared amongst
multiple designs.

However, neither service provides the design rules to fan out a 1mm
pitch pcb. Does anyone know of a company providing this service for
such pcb rules? The problem is that the anti-pad is too big and you
can't route between them when they are 1mm apart.

Any pointers appreciated.

Regards

Colin

 

[Leon]

Guys

In the uk we have easy access to PCB-pool and PCB train. These
companies provide prototypes where the tooling is shared amongst
multiple designs.

However, neither service provides the design rules to fan out a 1mm
pitch pcb. Does anyone know of a company providing this service for
such pcb rules? The problem is that the anti-pad is too big and you
can't route between them when they are 1mm apart.

Any pointers appreciated.

How many layers are you using? You will need at least 6 layers for
most BGAs to route them successfully.

 

[[email protected]]

How many layers are you using? You will need at least 6 layers for
most BGAs to route them successfully.

Six it is.
You can route out on top, bottom and two inner layers, leaving 2 for
ground and a split power.

So, to ask my question more accurately. What's the cheapest
manufacturer in europe or the states to build a single 3 inch square
pcb with design rules to allow a grid of vias on 1mm pitch with six
layers?

Colin

 

[Uwe Bonnes]

Guys

In the uk we have easy access to PCB-pool and PCB train. These
companies provide prototypes where the tooling is shared amongst
multiple designs.

However, neither service provides the design rules to fan out a 1mm
pitch pcb. Does anyone know of a company providing this service for
such pcb rules? The problem is that the anti-pad is too big and you
can't route between them when they are 1mm apart.

Did you look at www.multipcb.com?

 

[[email protected]]

Did you look atwww.multipcb.com?
--
Uwe Bonnes [email protected]-darmstadt.de

Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

I've just taken a look. They would be perfect if I could buy one pcb
from them, but they insist on two. If I could buy one then it would be
a simillar price to pcbtrain but with the design rules I need.

Anyone else out there?

Colin

 

[Mike Harrison]

I've just taken a look. They would be perfect if I could buy one pcb
from them, but they insist on two. If I could buy one then it would be
a simillar price to pcbtrain but with the design rules I need.

Anyone else out there?

Colin

At very low volumes, it is not uncommon for the 1x price to be little more than double the 2x price,
and a spare proto board is often handy to have....