[PCB_FORUM] Re: Heatsink Pad
- From: "David Greig" <david@xxxxxxxxxxxxxx>
- To: <icu-pcb-forum@xxxxxxxxxxxxx>
- Date: Wed, 14 Dec 2005 19:57:29 -0000
Hey, just noticed some new subclasses' in 15.5.0
Package_geo/dfa_bound_top
Package_geo/daf_bound_bottom
Package_geo/pastemask_top
Package_geo/pastemask_bottom
Presumably to address an issue?
Best Regards
David Greig
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From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Musetti, Carl
Sent: 14 December 2005 19:47
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Heatsink Pad
does anyone know if it is fixed in 15.5.1
-----Original Message-----
From: Dave Elder [mailto:dave.elder@xxxxxxxxxx]
Sent: Wednesday, December 14, 2005 2:45 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Heatsink Pad
I have raised a PCR and am hoping that Uncle Ed will get Allegro to do just
that!
Dave Seymour wrote:
arrrgh. Why can't Allegro just map on the way in.
Venting done.
Dave Elder wrote:
Unless you are using 15.5 do not use PACKAGE GEOMETRY/PASTEMASK_TOP as the
user-defined layer name.
In 15.5 this is a system-defined layer and you will get a nasty conflict if you
already have a user-defined layer of this name
in your designs or on symbols when you come to uprev your designs or use 15.x
created symbols in 15.5.
Cheers, Dave
Gerry Meier wrote:
While in symbol - Add polygon on Package Geometry > Pastemask_top then Include
this layer in your film control file
Gerry Meier
Sr. PCB Designer
Freedom CAD Services, Inc.
Voice: (603) 864-1300 x1350
AL Voice: (256) 417-6944
Email: gerry.meier@xxxxxxxxxxxxxx
visit our website at<http://www.freedomcad.com
_____
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Ed Caldwell
Sent: Wednesday, December 14, 2005 10:09 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Heatsink Pad
Hi Gerry,
That is the track I was originally on but I didn't see how to add the paste
pad.
Ed
"Gerry Meier" <gerry.meier@xxxxxxxxxxxxxx>
Sent by: icu-pcb-forum-bounce@xxxxxxxxxxxxx
12/14/2005 11:03 AM
Please respond to
icu-pcb-forum@xxxxxxxxxxxxx
To
<icu-pcb-forum@xxxxxxxxxxxxx>, "Milostnik Matija ITWEH7"
<milostnik@xxxxxxxxxxx>
cc
Subject
[PCB_FORUM] Re: Heatsink Pad
Ed,
You can just add the shape to the symbol on etch > top. When you import the
part into you're board file assign the shape to
whatever net you want and drop in some vias. You can include the soldrmask and
pastemask in the symbol.
This does not require a ninth pin to be added to the logic symbol.
Gerry Meier
Sr. PCB Designer
Freedom CAD Services, Inc.
Voice: (603) 864-1300 x1350
AL Voice: (256) 417-6944
Email: <mailto:gerry.meier@xxxxxxxxxxxxxx> gerry.meier@xxxxxxxxxxxxxx
visit our website at<http://www.freedomcad.com
_____
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Ed Caldwell
Sent: Wednesday, December 14, 2005 9:52 AM
To: Milostnik Matija ITWEH7
Cc: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [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
To
<Ed.Caldwell@xxxxxxxxxx>
cc
Subject
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
Please respond to
icu-pcb-forum@xxxxxxxxxxxxx
To
<icu-pcb-forum@xxxxxxxxxxxxx>
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Subject
[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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