Patent ID: 6094129
Filing Date: 2000-07-25
Classification: H01C,H02H

Abstract:
An electronic assembly comprising:a cooling layer;a PTC thermistor, the PTC thermistor comprising a resistive track that has a meandering path, the resistive track comprising a first main surface and a second main surface, the first main surface opposite the second main surface;an electrically insulating ceramic layer between the first main surface and the cooling layer;an electrically insulating thermally conductive layer between the first main surface and the electrically insulating ceramic layer;a pressure compensator, the pressure compensator applying pressure to the second main surface when a force is applied to the pressure compensator, wherein the pressure compensator comprises a metal film that forms a closed shell that is filled with a dielectric or electrically conductive fluid having a boiling temperature above 150.degree. C.; anda flexible, thermally conductive polymer sheet, the polymer sheet interposed between the pressure compensator and the second main surface such that it is in direct contact with the second main surface.