search

pointhi / kicad-footprint-generator

creating kicad footprints using python scripts
GNU General Public License v3.0
186 stars 175 forks source link

Add Infineon_LFBGA-292_17x17mm #641

Closed cronJ closed 3 years ago

cronJ commented 3 years ago

grafik

https://www.infineon.com/cms/en/product/packages/PG-LFBGA/PG-LFBGA-292-11/

codeclimate[bot] commented 3 years ago

Code Climate has analyzed commit bfa238b6 and detected 0 issues on this pull request.

View more on Code Climate.

cpresser commented 3 years ago

The datasheet is weird. I cant see if the ball-size is 0.5 or 0.35mm. image

Also, it seems this is a SolderMaskDefined example footprint. However, I see a postive mask_margin in the changeset.

chschlue commented 3 years ago

The drawing is... highly original, but I think they suggest 0.5mm mask, 0.35mm copper, making it NSMD. (The hatched "blob" is supposed to be mask and if you look closely, the diagonal lines stop at the 0.5mm circles, so that's supposedly the mask cutout.)

Edit: oh, and the actual balls are 0.5mm according to the first image on the package page.

cpresser commented 3 years ago

I think you are right.. I checked the PDF again, one can zoom in: image

IPC suggest a 0.4mm pad for a 0.5mm ball image But the numbers are pretty close.

@cronJ Please get rid of the mask_margin parameter. Then the mask will be controlled by the board settings.

cpresser commented 3 years ago

Is there also a footprint PR? If yes, please update it with the generator output and ping me so I can merge it.