2025-09-03 2:32 PM
Hello,
I'd like to use the STM32WLE5 in an upcoming design. Looking at the datasheet, I noticed the recommendation for the BGA package is to have the stencil opening larger than the pad diameter, instead matching the ball diameter . To me this seems counterintuitive, as I would typically reduce the paste for balls <0.4mm in diameter. Can anyone help me understand this recommendation?
Thanks,
Billy