2023-01-16 02:47 PM
WLCSP12 package in pages 83-85 of:
https://www.st.com/resource/en/datasheet/stm32c011d6.pdf
has defined pad diameter and solder mask aperture diameter but...
where can I find solder paste aperture?
This is very specific package, 0.35mm pitch.
I found some solder paste definitions for other WLCSP with different pad diameter or pitch, but I can't find this one...
Anyone can help?
2023-02-01 07:23 AM
Hello @CNiev ,
The solder paste aperture (or stencil aperture) is 230µm for a 0.35mm pitch. It is missing in the datasheet and it will be added on the next document revision.
Sorry for the delay,
Best regards,
Simon