Patent ID: 7992285
Filing Date: 2011-08-09
Classification: H01C,Y10T

Abstract:
1. A method of fabricating a negative temperature coefficient thermistor, comprising the steps of: (A) combining powders having a negative temperature coefficient of resistance, a polymer binder and a solvent to form a mixture, wherein an amount of the polymer binder is 1 to 25 wt % based on a total weight of the mixture, and a weight ratio of the solvent to the powders is in a range of 1:1 to 5:1; (B) removing the solvent and granulating the mixture to form granulous powders; (C) compressing the granulous powders to obtain a thermistor material with a specific shape; (D) curing the thermistor material at a temperature of 80° C. to 350° C.; and (E) mounting an electrode to the thermistor material to form the negative temperature coefficient thermistor.