Suggestion For Epoxies for Shielding WLCSP

[mcintoda]

The product spec and experiment have shown that WLCSP (wafer level chip-scale package) are susceptible to ambient light (visible, IR, UV). My observation is increased current draw (>10uA) under fairly normal room ambient light.

Do you have any suggestions for epoxies or similar materials for encapsulating/shielding the package once assembled on PCB?

[Hung Bui]

Hi Mcintoda,

We don't have list of epoxy types or material should be used. Any compound that can block IR can be used.

You can use what we use on the beacon kit. It's called Epo-tek 320. 320.pdf