I don't think there's any spec as the minimum may vary from shop to
shop. We use 0.1mm as our minumum by design.

Denis Lefebvre, CID+
Sr. PCB Designer
Finisar Corp
(408) 542-3832


-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of
Narinder
Sent: Friday, March 03, 2006 6:08 AM
To: [log in to unmask]
Subject: [DC] Soldermask Web


Is there any standard or specification or a guideline for Soldermask web
between smd pad other then BGA.


thanks

Narinder
----- Original Message -----
From: <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, March 02, 2006 8:07 PM
Subject: Re: [DC] Manufacturer for Cavity board


> Carol,
> There are numerous PCB Fabricators with cavity build experience. I 
> would recommend two, in the US try Merix, in Asia try  Topsearch. I 
> have had good luck and relationships with both of these large scale 
> manufacturers. For smaller scale there are lots of houses in the 
> Silicon Valley still that
> specialize in small quantity exotic builds.
> Try Steamline Circuits in San Jose.
> If you ask nice any house will likely be glad to  do prototype
> quantities(read this as cavity builds equal high margins for  fab).
> Good Luck,
> FNK
>
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