https://devzone.nordicsemi.com/f/nordic-q-a/123458/nrf52832-wlcsp-x-rayHello, we use nrf52832-ciaa in our project and it is light sensitive. Could we use x-ray to inspect soldering quality or it will damage the mcu? Thank you, Antonen-USTelligent Community 13Tue, 05 Aug 2025 09:51:22 GMThttps://devzone.nordicsemi.com/thread/544584?ContentTypeID=1Tue, 05 Aug 2025 09:51:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:01c27cc8-eb73-4927-8a77-f3cff57ee39cSwRa<p>Hi Anton,</p> <p><span>The WLCSP package is sensitive to visible and infrared light, it&#39;s not more sensitive to X-rays than the QFN packages. X-raying the chip shouldn&#39;t be a issue.</span></p> <p><span>Best Regards,</span></p> <p><span>Swathy</span></p><div style="clear:both;"></div>