Hi Mike,

Just do not include the gerbers for the soldermask
when you order the boards and note in your readme file
and fabrication drawing (if any) that there is no soldermask.

Regards,
Steve Smith
Product Engineer
Staco Energy Products Co.
Web Site: www.stacoenergy.com


> -----Original Message-----
> From: Robison Michael R CNIN [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, September 18, 2001 10:01 AM
> To: 'Protel EDA Forum'
> Subject: [PEDA] eliminating solder mask ??
> 
> 
> hello,
> 
> well another embarrassing newbie question from someone who should
> no better.
> 
> production is having trouble getting some heat sinks to stay 
> "glued" to
> the solder mask on some prototype boards.  the decision has been 
> made to not use a solder mask.  the boards will be conformal coated
> anyway.
> 
> so how do i eliminate the solder mask?  i know that pads are tented by
> using a negative value equal to the largest pad.  my guess is 
> that i can
> do a design/rules/manufacturing tab, double click the solder mask ex-
> pansion and use a whole board scope with -1mil expansion on 
> it.  is this
> correct?  more so, is this the way to do it?  i played with 
> this and looked
> at the top and bottom solder layers (not the gerbers) using the single
> layer mode and i don't see anything but the pads no matter 
> what i do to
> it.
> 
> i also entertained the thought of right-clicking on the pcb, selecting
> options/board options/layers tab/ and then simply unclicking 
> the top and
> bottom solder, but i'm skeptical of this... i think all this 
> does is control
> the layers that are displayed.
> 
> i apologize for posting on such a basic issue, but i could 
> not find the
> answer in the book, and guessing makes me nervous when we're 
> talking about actually placing an order.
> 
> thank you, miker
> 
> 

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