Patent ID: 11967445
Assignee: TDK CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. NTC thermistor element comprising:
a thermistor body; and
a plurality of internal electrodes disposed in the thermistor body and opposing each other,
wherein the thermistor body includes a region interposed between adjacent internal electrodes of the plurality of internal electrodes,
wherein the region of the thermistor body includes a plurality of crystal grains arranged in succession between the internal electrodes adjacent to each other, and
wherein the plurality of crystal grains include:
a first crystal grain being in contact with one internal electrode of the internal electrodes adjacent to each other,
a second crystal grain being in contact with another internal electrode of the internal electrodes adjacent to each other, and
a third crystal grain not being in contact with the first crystal grain and the second crystal grain, and
wherein the plurality of crystal grains are made of a semiconductor ceramic material.