Patent ID: 6020808
Filing Date: 2000-02-01
Classification: H01C,Y10T

Abstract:
A conductive polymer PTC device, comprising:a first upper electrode portion;a second upper electrode portion, coplanar with and isolated from the first upper electrode portion, and having a greater surface area than the first upper electrode portion;a first lower electrode portion;a second lower electrode portion, coplanar with and isolated from the first lower electrode portion, and having a greater surface area than the first lower electrode portion;a center electrode;a first PTC layer of conductive polymer material between and contacting the upper electrode portions and the center electrode;a second PTC layer of conductive polymer material between and contacting the lower electrode portions and the center electrode;an input terminal electrically connecting, through a metallized channel, the first upper electrode portion, the first lower electrode portion, and the center electrode to each other;a first output terminal on the second upper electrode portion; anda second output terminal on the second lower electrode portion;whereby a current path is established from the center electrode to the first and second output terminals through the first and second PTC layers, respectively.