QFN-12 footprint for MMZ09332B

pointhi / kicad-footprint-generator

creating kicad footprints using python scripts

GNU General Public License v3.0

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QFN-12 footprint for MMZ09332B #640

Closed drid closed 3 years ago

drid commented 3 years ago

https://www.nxp.com/docs/en/data-sheet/MMZ09332B.pdf

One issue regarding EP. Mechanical has dimensions 1.4mm-1.6mm which result in 1.5mm EP but recommended land pattern has 1.6mm EP

How is this resolved in the generator? Also is there a way to create a 3-2-3 thermal via pattern?

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chschlue commented 3 years ago

The desired EP size is set using EP_size_[xy]_overwrite (see https://github.com/pointhi/kicad-footprint-generator/tree/master/scripts/Packages/Package_NoLead__DFN_QFN_LGA_SON#exposed-pad-handling). The via pattern is not possible at this time.

myfreescalewebpage commented 3 years ago

@drid thanks

[ ] lead_width minimum value should be 0.18
- [ ] You should remove all the comment lines

Else @chschlue @poeschlr it seems ok for me but because it's a bit specific I prefer you have a second look

Joel

myfreescalewebpage commented 3 years ago

@chschlue the footprint name and EP eventually but if my understanding is correct, this is the best we can do to have something closed to the datasheet definition, isn't it ?

chschlue commented 3 years ago

Ah. Wasn't paying attention to the name. Footprint doesn't look very special to me, unless I'm missing something NXP_ isn't necessary and the size def can be moved to qfn-1x.yaml.