Integrated circuits immunity evaluation by different test procedures

In this paper some methods to perform integrated circuit (IC) susceptibility tests are described. The Work Bench Faraday Cage method allows the measurements of small PCBs or ICs immunity to common mode conducted RF interference, while the direct injection method makes possible the evaluation of IC immunity to differential mode disturbance. The evaluation of ICs susceptibility to electromagnetic radiated field can be performed by the TEM cell method. Test benches related with methods summarized in this paper, were realized and used in order to verify experimentally the immunity of a microcontroller IC. In this work the different measurement procedures are compared and the test benches weak points are highlighted.