An electromechanical apparatus for testing chips includes a pivoting springy mechanism which squeezes a chip holding subassembly between a temperature regulating subassembly and a power converter subassembly. This mechanism is comprised of a first arm that has a first pivotal joint, and a second arm...http://www.google.de/patents/US6307391?utm_source=gb-gplus-sharePatent US6307391 - Pivoting springy mechanism that opens and closes pressed electrical contacts with a force which is nearly constant over a range of closed positions
