Inorganic Conformal Coating For Implantable Electronic Devices
Original Publication Date: 1982-Mar-01
Included in the Prior Art Database: 2005-Feb-09
Implantable devices, such as pacemakers, or other devices in a corrosive ambient are protected from body fluids or the like by metallic hermetically sealed enclosures. If this seal is broken, the corrosive fluids are allowed into the package and immediate device failure may be caused. Therefore, a back-up seal has been sought. Many types of polymeric coatings have been tried each with major shortcomings such as adhesion loss, high water and ionic permeability, thickness uniformity, and ability to be reworked or removed from the device without damaging the circuitry.