System and method for assembling and interconnecting functional components of an active implantable medical device

Abstract

A process for mechanical assembly and electrical interconnection of the functional components of an active implantable medical device. A first step involves preparing an interconnection flex circuit () that is able to be electrically and mechanically linked to an electronic circuit module (), a supply battery () and a series of feedthrough terminals () of the device, prior to being placed in a common case. The flex circuit has a series of pads () for linking to homologous metallizations () of the substrate. The mechanical assembling and electrical linking of these pads () to the metallizations () is performed without either the use of any activation flux or introduction of fusible brazing, and rather by applying an intermediate anisotropic conductive material () placed between the pads () and metallizations (), followed by polymerizing this material. The applying and polymerizing are performed under controlled conditions of pressure, temperature and duration.