you need a new vendor to satisfy your boss.  possibly more expansive  
one (with additional vendor qualification process ;-).

On May 1, 2018, at 5:54 PM, Frank Kimmey wrote:

> How narrow a plated slot can be done without premium?
> I realize this is very objective but my bosses want some number.
> They won't be satisfied with what my vendor says unless I can back  
> it up
> I'm thinking 0.5 mm but would like to know what others think
> Any help is appreciated,
> FNK
>
> Frank N Kimmey CID+
> Electrical Engineer/PCB Design
>
> Verifone
> 1400 W Stanford Ranch Road
> Rocklin, CA 95765
> T: 916-625-1818
> M: 916-833-9877
>
> *********************************************************
> This electronic message and any attachments are intended only for  
> the use of the addressee. The information in this electronic  
> message is confidential and proprietary, and may include privileged  
> information. If you are not the intended recipient, please delete  
> this electronic message and any attachments and notify the sender  
> of the error. Please be aware that any unauthorized use,  
> dissemination, distribution or copying of this message or any  
> attachments is strictly prohibited.