Chassis with multi-cantilever spring fingers for EMI shielding and ESD protection of electronic devices

摘要: A chassis utilizes spring fingers having contact portions and mid where each finger forms multiple cantilevers to provide different constants. Accordingly, the increase in force resulting from displacement can be better controlled even minimized for certain ranges of displacement. In particular, configured perform an operating range characterized by a smaller constant. As result, this is slower thus accommodating circuit boards with large connector height variations without significantly changing normal force. Such operation enables consistently pass EMI ESD testing, as well more reliable device operation.