A unitary clip having a base portion and a stake end is used to attach an electronic device package to a heat sink. The stake end of the clip is secured within an aperture such as a groove or slot in the face of the heat sink and connected to the base by a curved spring portion. An electronic device...http://www.google.co.uk/patents/US5068764?utm_source=gb-gplus-sharePatent US5068764 - Electronic device package mounting assembly
