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Reply To: | DesignerCouncil E-Mail Forum. |
Date: | Fri, 9 Oct 1998 14:36:02 -0400 |
Content-Type: | text/plain |
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Lisa,
What about the effects of blowing air over the board surface??
I just finished a board that sits in front of a fan, yet has high current flowing thru it.
Thanks, Cheers, Garry Hammond
Lisa Williams wrote:
> Colleagues:
>
> IPC will hold the first meeting of a new Task Group which will be looking to expand
> on the MIL-D-275 current carrying capacity charts. The following is a list of
> questions for the task group to tackle:
> How to do the following effect the thermal properties of a conductor/board area?
> 1) orientation of board -verticle (conductors on top vs. bottom) vs. horizontal
> 2) length of conductors (shorter)
> 3) pads & leads (adding components; heat generator or heat sink)
> 4) width vs. thickness (form factor)
> 5) dielectric material -negligible
> 6) conductor material effect (electrodeposition, foil, plating)
> 7) adjacent conductors
> 8) internal vs. surface conductors
>
> The new task group will be meeting on Tuesday, October 27 - 5:15pm - 6:30pm during
> IPC/SMTA Electronics Assembly Expo in Providence, RI. Interested parties are invited
> to attend and/or send their comments to the IPC.
>
> For more information visit our website...click on the component labeled IPC/SMTA
> Electronics Assembly Expo.
>
> Lisa Williams
> Technical Project Manager
> IPC
> 2215 Sanders Road
> Nortbrook, IL 60062
> www.ipc.org
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