NRF51822-CEAA WLCSP Optical Protection

[Jamie]

Hi,

I am using the NRF51822-CEAA flip chip package for my custom board.

Because this package has an optical vulnerability from the sides, could you please advise how to properly protect it?

Thank you, Jamie

[Hung Bui]

Hi Jamie,

The WLCSP package is IR sensitive, it should be covered by IR blocking material, typically epoxy or other potting compound.