[PCB_FORUM] Re: thermal flash for a slot padstack
- From: "Bolman, Shirley H" <shirley.h.bolman@xxxxxxxxx>
- To: <icu-pcb-forum@xxxxxxxxxxxxx>
- Date: Wed, 16 Jan 2008 09:13:00 -0800
George
Being able to put voids in shapes on any class was the one thing all
Librarians agreed to when we had a phone conference with Cadence last
fall so maybe some day they will think it is a valid idea.
Shirley
It is a PRIVILEGE to be born free.
It is a RIGHT to live free.
It is a DUTY to die free.
-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of
george.h.patrick@xxxxxxxxxxxxx
Sent: Tuesday, January 15, 2008 9:40 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: thermal flash for a slot padstack
OK, we heard you the first time (couldn't resist that, Mitch :)
.bsm are "Old style" thermals that only show up as crosshairs on the
plane. They can be drawn with lines, making it possible to do some
really weird things with them :)
The .fsm are the new "wysiwyg" thermals that can only be done with
shapes. These shapes can't have voids. End of weird stuff.
We do a lot of weird stuff, especially when looking at 20 GHz analog
signals. We can't use WYSIWYG, which means we can't do ODB++ which
means we don't save $100 per setup.
Oh, well, maybe some day Cadence will allow us to put voids in the
shape, then we can do weird things and SEE what they look like in
Allegro.............................
--
George Patrick
Tektronix, Inc.
Central Engineering, EDS Application Support
P.O. Box 500, M/S 39-512
Beaverton, OR 97077-0001
* 503-627-5272 (voice) * 503-627-5587 (fax)
http://www.tektronix.com <http://www.tektronix.com/>
http://www.pcb-designer.com <http://www.pcb-designer.com/>
"Off grid and Proud of it!"
________________________________
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx on behalf of Mitch S. Morey
Sent: Tue 1/15/2008 1:19 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: thermal flash for a slot padstack
It should be whatever FLASH extension your Allegro uses. I can't keep
current with their versions any longer. :)
Good day.
(still on v15.7)
>
> Mitch
> Shouldn't that be a .fsm instead of a .bsm? As a .fsm it can be added
to
>
> a padstack like the circular ones.
> It looks like Cadence hasn't caught up on all of the weird things
> "Librarians" are asked to do.
>
> Shirley
> It is a PRIVILEGE to be born free.
> It is a RIGHT to live free.
> It is a DUTY to die free.
>
>
> -----Original Message-----
> From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
> [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Macindoe,
Gary
> Sent: Tuesday, January 15, 2008 7:56 AM
> To: icu-pcb-forum@xxxxxxxxxxxxx
> Subject: [PCB_FORUM] Re: thermal flash for a slot padstack
>
>
> Hey Mitch,
>
> I created my slotted thermal flash in a similar way, from two circular
> ones.
> I was just wondering if the auto way possible.
>
> Gary
>
>
>
> Gary E. MacIndoe
> PCB Design Engineer
> Fort Collins, Colorado
> amd.com
>
> gary.macindoe@xxxxxxxxxxxxxxxxxxxx Message-----
> From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
> [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Mitch S.
Morey
> Sent: Monday, January 14, 2008 5:38 PM
> To: icu-pcb-forum@xxxxxxxxxxxxx
> Subject: [PCB_FORUM] Re: thermal flash for a slot padstack
>
> Hi Gary,
> I used the "make thermal" SKILL routine (mkth) and added a circle
> thermal.
> I removed the top/bottom etch shapes, and added some rectangle shapes
> top/bottom I can generate a "slotted" thermal flash in a matter or
> minutes. I might not be "blonde" perfect, but I'd use it if I needed
to.
>
> Good day.
> Mitch
>> Hey guys,
>>
>>
>>
>> Ok, I'm trying to create a thermal flash symbol for a slot.
>>
>>
>>
>> I'm in a drawing with the symbol Type set to "Flash".
>>
>>
>>
>> I go Add -> Flash, and in the Thermal Pad Symbol Defaults window, It
>> appears
>> that I can only add the thermal shapes for a circle.
>>
>>
>>
>> Is there any way to automatically create the shapes for a slotted
> thermal?
>>
>>
>>
>> I believe I can create two thermals for circles, then merge them to
> create
>> a
>> slotted thermal. Is that the only way?
>>
>>
>>
>> Thanks for any help!
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Gary E. MacIndoe
>> PCB Design Engineer
>> Fort Collins, Colorado
>>
>> amd.com
>>
>> gary.macindoe@xxxxxxx
>>
>>
>>
>>
>
>
>
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