초록 ▼

A surface mount conductive polymer device includes a layer of conductive polymer material laminated between first and second metal foil electrodes. A thermal stress relief area is formed as an etched-out area in each of the electrodes. The etched-out areas are equal in surface area, and they are sym

A surface mount conductive polymer device includes a layer of conductive polymer material laminated between first and second metal foil electrodes. A thermal stress relief area is formed as an etched-out area in each of the electrodes. The etched-out areas are equal in surface area, and they are symmetrically disposed on the two electrodes, so that the two electrodes are themselves symmetrical, and are subject to equal degrees of thermal stress relief. First and second opposed end terminals are formed on the opposed ends of the laminated structure to providing electrical connection to the first and second electrodes, respectively.

대표청구항 ▼

1. A method of fabricating an electronic device, comprising the steps of:(1) providing a laminated structure comprising a conductive polymer PTC layer sandwiched between first and second metal layers; (2) isolating selected areas of the first and second metal layers to form, respectively, first and

1. A method of fabricating an electronic device, comprising the steps of:(1) providing a laminated structure comprising a conductive polymer PTC layer sandwiched between first and second metal layers; (2) isolating selected areas of the first and second metal layers to form, respectively, first and second arrays of electrode strips; (3) forming a pattern of thermal stress relief areas in each of the electrode strips in the first and second arrays; (4) forming a first plurality of insulation areas on the exterior surface of each of the first array of electrode strips and a second plurality of insulation areas on the exterior surface of each of the second array of electrode strips; (5) forming a plurality of first terminals, each electrically connected to one of the electrode strips in the first array, and a plurality of corresponding second terminals, each electrically connected to one of the electrode strips in the second array, each of the first terminals being isolated from a corresponding second terminal by one of the first plurality of insulation areas and one of the second plurality of insulation areas; and (6) separating the laminated structure into a plurality of devices, each comprising a conductive polymer layer sandwiched between a first electrode formed from one of the electrode strips in the first array and a second electrode formed from one of the electrode strips in the second array; a first terminal in electrical contact with the first electrode; and a second terminal in electrical contact with the second electrode.