Polytronics Technology Corporation

Chun-Teng Tseng

David Shau Chew Wang

Wen Feng Lee

Yao-Te Chang

A PTC device comprises a laminated substrate, a first PTC material layer, a second PTC material layer, a first metal layer and a second metal layer. The laminated substrate comprises a first conductive layer, a second conductive layer and an insulating layer laminated between the first and second conductive layers. The first PTC material layer is disposed on the first conductive layer, and the second PTC material layer is disposed on the second conductive layer. The first metal layer is disposed on the first PTC material layer, and the second metal layer is disposed on the second PTC material layer. The insulating layer has a through hole filled with PTC material to form a PTC connecting member of which one end connects to the first PTC material layer and another end connects to the second PTC material layer.

PTC device

An over-current protection device is a hexahedron comprising an upper surface, a lower surface and four lateral surfaces. The over-current protection device comprises a PTC device, a first insulating layer, a first electrode layer and a second electrode layer. The PTC device comprises a first conductive layer, a second conductive layer and a PTC material layer laminated therebetween. The first conductive layer comprises a first conductive section and a second conductive section separated by at least one trench. The first insulating layer is disposed on the first conductive layer. The first electrode layer is disposed on the first insulating layer and electrically coupled to the first conductive section. The second electrode layer is disposed on the first insulating layer and electrically coupled to the second conductive section. The trench comprises a primary portion not parallel to a longitudinal direction of the first and second electrode layers.

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Miaoli County, Taiwan

Chun-Teng Tseng