https://devzone.nordicsemi.com/f/nordic-q-a/112922/ultrasonic-welding---nrf52840Hi, I want to weld my product that contains NRF52840, using an ultrasonic welding machine. Currently I&#39;m thinking of a welding frequency of 20KHz or 40KHz. 1. Is there one frequency that should be better than the other one? 2. Are there anyen-USTelligent Community 13Thu, 11 Jul 2024 12:45:32 GMThttps://devzone.nordicsemi.com/thread/493426?ContentTypeID=1Thu, 11 Jul 2024 12:45:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c14c0579-c698-412c-84de-f03415c838d2Menon<p>Hello,</p> <p>Ultrasonic welding should be fine, but we don&#39;t have any specific recommendations or suggestions for your query. We don&#39;t recommend any particular frequency since we don&#39;t test or practice ultrasonic welding here. However, we haven&#39;t encountered any issues with other customers using ultrasonic welding, so you can probably select a frequency that suits your needs.</p> <p>Kind regards,</p> <p>Abhijith</p><div style="clear:both;"></div>