[PCB_FORUM] Re: Heatsink Pad

Sorry - didn't mean to seem unfriendly

First, I generated the unique pad shape with the Allegro editor...

Start new
enter a unique file name
select drawing type - Shape symbol
in the editor - go to Shape add polygon
draw the shape
save (Important - make sure the Setup Drawing Parameters is set to Type: 
Shape)

Open padstack editor
go to layers tab
select each appropriate layer and change the geometry to shape (under 
Regular Pad)
pick the nav button beside Shape and find the unique file name you 
assigned to the pad shape

This still leaves a problem in my symbol. It has 8 pins and the heatsink 
adds a 9th pin. This means I have to add another pin to the schematic 
symbol in order to tie the heatsink to the appropriate same net pins.

Hope this helps

Ed




"Milostnik Matija    ITWEH7" <milostnik@xxxxxxxxxxx> 
12/14/2005 10:21 AM

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RE: [PCB_FORUM] Re: Heatsink Pad






Hello,
 
very unfriendly from you, not to tell HOW did you figure it out.
 
It is nice that you found a solution, but it would be even nicer, if you 
just would tell something like this:
==============================
never mind - figured it out by pushing on the third button from the left 
on the opening page.
Ed
==============================
 
Bye
  Matija
 
 

From: icu-pcb-forum-bounce@xxxxxxxxxxxxx 
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Ed Caldwell
Sent: Wednesday, December 14, 2005 3:58 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Heatsink Pad


never mind - figured it out 
Ed 


Ed Caldwell <Ed.Caldwell@xxxxxxxxxx> 
Sent by: icu-pcb-forum-bounce@xxxxxxxxxxxxx 
12/14/2005 09:11 AM 

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[PCB_FORUM] Heatsink Pad









How do I generate a polygon Heatsink solderpaste pad? The symbol editor 
accommodates copper and soldermask but no solderpaste. Is this done with a 
custom padstack? If so, how do I generate the polygon padshape so that I 
can import it into the padstack editor? 

Thanks,
Ed 

Ed Caldwell
Circuit Board Designer
Voice: 770-622-8707
Email: mailto:ed.caldwell@xxxxxxxxxx 

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