A failure analysis equipment for an electronic circuit, includes a voltage supply for supplying a constant voltage to a wiring of an electronic circuit to be analyzed, an energy beam or fluid jet generator, an apparatus for irradiating the energy beam or fluid jet to the wiring to thereby vary a temperature...http://www.google.com/patents/US5659244?utm_source=gb-gplus-sharePatent US5659244 - Electronic circuit tester and method of testing electronic circuit