kicad-lib-committers team mailing list archive

[Cirilo Bernardo <cirilo_bernardo@xxxxxxxxx>]

>________________________________
> From: Carl Poirier <carl.poirier.2@xxxxxxxxx>
>To: "kicad-lib-committers@xxxxxxxxxxxxxxxxxxx" <kicad-lib-committers@xxxxxxxxxxxxxxxxxxx> 
>Sent: Sunday, September 21, 2014 1:58 AM
>Subject: [Kicad-lib-committers] Fwd: question about SMD_Packages
> 
>
>
>Hi folks,
>
>
>We have some great contributions here prepared by Michal Stec. He's generating SMD packages appropriate for the convention, however we were unsure how to make the silkscreen for QFN packages. If it's done the same as TQFP, it yields, for the pin one indication, a bar so short it's going to be difficult to see. We thus tried to find something else. Please have a look at the two screenshots below. The first one has a more visible mark, but I'm unsure if there are QFN packages with pins in the reverse order, in which case we can't tell from the silkscreen. Any comments? I have attached the file.
>
>


A mark to help machines orient the package is enough; the machines don't
care at all about pin numbering, only orientation. Pin numbering is only
of interest to the PCB designer to ensure that tracks are routed to the
correct pin; in most cases there is no useful purpose of indicating them
on the board.

- Cirilo