An implantable medical device substrate is free form cut to the shape of the interior of the device. The free form shape allows more efficient use of not only the interior space of the device but also of the substrate itself. Integrated circuit components are formed to fit the shape of the substrate,...http://www.google.fr/patents/US7335530?utm_source=gb-gplus-shareBrevet US7335530 - Freeform substrates and devices
