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Subject:	RE: THERMAL PADS
From:	Chris Taylor <[log in to unmask]>
Date:	Tue, 10 Jun 1997 10:02:37 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (37 lines)

Since a thermal pad is essentially a non-plated-thru hole of a specific diameter which gets filled with a thermally conductive, electrically isolating compound, it can be handled in two different ways. You can create a separate single pin component and associate a padstack to it like a NPTH mounting hole or you can add the pin with its unique pintype to the existing SMT component footprints and save them as a new component (i.e. PLCC44TH.PRT). If you change the component name, remember to update your schematic device attribute or your component part name in the PARTS section of your netlist. An advantage to incorporating the thermal via into the part is that it moves with the part, should you relocate it in a design change. Remember to add the new hole data in your drill chart.

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From:  Trevisan Mauro[SMTP:[log in to unmask]]
Sent:  Tuesday, June 10, 1997 8:14 AM
To:  'E-Mail: Pcad Users Group'
Subject:  THERMAL PADS

Hi all,
I'm an italian user of PCAD v.8.6.
This is the first time for me in this forum, so I don't
know if you have already discussed about the following:
I'd like some tips on which is the easiest and/or the simplier
way to create thermal pads in PCCARDS.

Thanks in advance.

			       ;-)  Mauro.

----
Trevisan Mauro		[log in to unmask]
PCB designer		+39-445-359245
Sicon srl			www.sicon-ups.com
via della Tecnica, 1	36030 Villaverla (VI) ITALY.
----

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