Thermistor paste and manufacturing method thereof
AssigneeYageo Corporation
InventorsShen-Li HSIAO, Kuang-Cheng LIN, Wei-Chen HUANG, Ren-Hong WANG
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Abstract
The present invention relates to a thermistor paste and a manufacturing method thereof. The thermistor paste includes specific contents of thermistor powder, a glass powder, and an organic carrier, in which the organic carrier includes an organic solvent, a binder, and an additive. A thermistor semi-finished product slurry of the present invention has been sintered. The thermistor paste of the present invention excludes a precious metal, such as ruthenium, gold, or platinum, etc., so the production cost can be reduced.
Claims15
A thermistor paste, based on a total weight of the thermistor paste as 100 weight percent, comprising:
- 50 to 89 weight percent of a thermistor powder, wherein a main component of the thermistor powder is MnxCo1-xNiyO1.6, x is from 0.4 to 1.0, and y is from 0.07 to 0.75;
- 1 to 5 weight percent of a glass powder;
- and
- 10 to 45 weight percent of an organic carrier, wherein based on a total weight of the organic carrier as 100 weight percent, the organic carrier comprises:
- 80 to 92 weight percent of an organic solvent;
- 5 to 15 weight percent of a binder;
- and
- 3 to 5 weight percent of an additive;
- wherein an average grinding fineness of the thermistor paste is smaller than 20 μm.
A manufacturing method of a thermistor paste comprising:
- providing a thermistor semi-finished product slurry;
- providing glass powder;
- providing an organic carrier, wherein the organic carrier comprises an organic solvent, a binder, and an additive;
- mixing the thermistor semi-finished product slurry, the glass powder, and the organic carrier to obtain a thermistor semi-finished product slurry mixture, wherein based on a total weight of the thermistor semi-finished product slurry mixture as 100 weight percent, the thermistor semi-finished product slurry mixture comprises:
- 40 to 70 weight percent of the thermistor semi-finished product slurry;
- 1 to 5 weight percent of the glass powder;
- 10 to 40 weight percent of the organic solvent;
- 5 to 15 weight percent of the binder;
- and
- 0.5 to 5 weight percent of the additive;
- using three rollers to roll the thermistor semi-finished product slurry mixture;
- and
- filtering the thermistor semi-finished product slurry mixture after using the three rollers to roll the thermistor semi-finished product slurry mixture to obtain the thermistor paste.
Dependencies are inferred from the claim text.