kicad-lib-committers team mailing list archive

[Carl Poirier <carl.poirier.2@xxxxxxxxx>]

It's pretty simple. They are proposing a nominal courtyard excess of 0.25mm
for all THT components. All in all, I would amend rule 6.6 to the
following, breaking it down into two rules:

- Courtyard line has a width 0.05mm. This line is placed so that its
clearance is measured from its center to the edges of pads and body.
- Courtyard clearance is 0.25mm, except for components smaller than 0603 at
0.15mm, aluminum capacitors and connectors at 0.5mm and BGA at 1.0mm, all
rounded on a grid of 0.05mm. (IPC-7251, IPC-7351)

The connector clearance comes from *PCB Design Optimization starts in the
CAD library*. Any comments before I edit the KLC?

On Wed, Jan 14, 2015 at 8:22 PM, Carl Poirier <carl.poirier.2@xxxxxxxxx>
wrote:

> Thank you very much Lorenzo. I will come up with some adjustments to the
> KLC.
>
> On Tue, Jan 13, 2015 at 2:26 AM, Lorenzo Marcantonio <
> l.marcantonio@xxxxxxxxxxxx> wrote:
>
>> On Mon, Jan 12, 2015 at 09:39:44PM -0500, Jean-Paul Louis wrote:
>> > > Thanks for the information. I have looked at some videos. Are you
>> aware of some guidelines for THT courtyards?
>>
>> Here you go for THT:
>>
>> http://www.ipc.org/committee/drafts/1-13_d_7251WD1.pdf
>> (yes, eternal draft:D)
>>
>> --
>> Lorenzo Marcantonio
>> Logos Srl
>>
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>