A leadframe that is configured to be used with an electronic device, e.g., light emitting diode (LED), includes a heat sink supporting ring for supporting a heat sink. An outer frame is spaced apart from the heat sink supporting ring, and encloses the heat sink supporting ring. At least one supporting...http://www.google.fr/patents/US7361940?utm_source=gb-gplus-shareBrevet US7361940 - Leadframe and packaged light emitting diode
