PTC DEVICE AND METHOD FOR PRODUCING THE SAME

Title:

PTC DEVICE AND METHOD FOR PRODUCING THE SAME

Document Type and Number:

WIPO Patent Application WO/2001/006521

Kind Code:

A1

Abstract:

Conductors (13) are buried by pressing in a composition formed body (12) prepared by kneading 35-60 vol% of a conductive powdery filler with a crystalline polymer component in such a way that the conductors (13) are partly exposed from the surface of the composition formed body. Plating electrodes (14A, 14B) are formed by plating on the composition formed body (12). The conductive powdery filler contains at least one kind of TiC, WC, W¿2?C, ZrC, VC, NbC, TaC, and Mo¿2?C. The adhesion between the PTC composition and the electrodes are good, and the contact resistance between them are low. Such a PTC device is excellent in stability against repeated current application.

Inventors:

TAKAHATA OKIKUNI (JP)
KATAOKA MITSUHIRO (JP)

Application Number:

PCT/JP2000/004777

Publication Date:

January 25, 2001

Filing Date:

July 14, 2000

Export Citation:

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Assignee:

TOKIIN CORP (JP)
TAKAHATA OKIKUNI (JP)
KATAOKA MITSUHIRO (JP)

International Classes:

H01C1/142; H01C7/02; H01C7/04; H01C17/065; H05B3/14; (IPC1-7): H01C7/02; H05B3/14

Foreign References:

JPH10208902A	1998-08-07
JPH10125504A	1998-05-15
JPH11144906A	1999-05-28
JPH10140004A	1998-05-26
JPH0969409A	1997-03-11

Other References: