Surface mountable electrical device
AssigneeFuzetec Technology Co., Ltd.
InventorsJack Jih-Sang Chen, Chun-Ta Tseng, Ching-Chiang Yeh
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Abstract
A surface mountable electrical devices includes a PTC resistive element having opposite first and second surfaces and lateral faces interconnecting the first and second surfaces, spaced apart first and third electrode layers formed on the first surface, a second electrode layer formed on the second surface, and a conductive layer. Each two adjacent lateral faces defines a corner that has a terraced face. The conductive layer has a first lateral segment formed on the third electrode layer, a second lateral segment formed on the second electrode layer, and a transverse segment formed on the terraced face of one of the corners and having a terraced cross-section.
Claims4
A surface mountable electrical device, comprising:
- a positive thermal coefficient resistive element having opposite first and second surfaces and a plurality of planar lateral faces transverse to and interconnecting said first and second surfaces, each of two adjacent ones of said lateral faces defining a corner therebetween, said corner being indented relative to said two adjacent ones of said lateral faces and having a terraced face that interconnects said two adjacent ones of said lateral faces and that has a first tread face extending from one of said two adjacent ones of said lateral faces, a first rise face extending from and transverse to said first tread face, a second tread face extending from and transverse to said first rise face in a same direction as said first tread face, and a second rise face extending from and transverse to said second tread face in a same direction as said first rise face to connect with the other one of said two adjacent ones of said lateral faces;
- first and second electrode layers formed respectively on said first and second surfaces;
- a third electrode layer formed on said first surface and spaced apart from said first electrode layer;
- and
- a first conductive layer that has a first lateral segment formed on said third electrode layer, a second lateral segment formed on said second electrode layer, and a transverse segment transverse to and interconnecting said first and second lateral segments, said transverse segment being formed on said terraced face of one of said corners and having a terraced cross-section corresponding to said terraced face of said one of said corners.
Dependencies are inferred from the claim text.