A negative temperature coefficient type thermistor that comprises at least two conductor terminals and a thermistor structure formed of particles of lithium manganese oxide in a spinel structure within a polymer binder. The thermistor is configured to operate in a temperature range below a predefined first temperature and the polymer binder is selected so that its heat distortion temperature is higher than the first temperature. The manufacturing process further includes a stage of calendaring the thermistor structure in a temperature that is higher than the heat distortion temperature of the polymer binder.

A ceramic material has a composition represented by Ca.sub.xNa.sub.xMn.sub.yM.sub.yO.sub.12, wherein M denotes at least one of Ni and Cu, and x, x, y, and y satisfy any of (a), (b), and (c) in which x+x=X and y+y=Y:

[00001]$\begin{array}{cc}\frac{0.9}{7.0}\frac{X}{Y}<\frac{1.0}{7.0};& \left(a\right)\end{array}$

at a condition of

[00002]$\begin{array}{cc}\frac{X}{Y}=\frac{1.0}{7.0},\frac{0.03}{8}\frac{x}{X+Y}<\frac{0.30}{8}.Math..Math.\mathrm{and}.Math..Math.0\frac{y}{X+Y}\frac{0.35}{8};\mathrm{and}& \left(b\right)\\ \frac{1.0}{7.0}<\frac{X}{Y}\frac{1.0}{6.9}.& \left(c\right)\end{array}$

Provided are a metal nitride material for a thermistor, which exhibits high reliability and high heat resistance and can be directly deposited on a film or the like without firing, a method for producing the metal nitride material for a thermistor, and a film type thermistor sensor. The metal nitride material for a thermistor consists of a metal nitride represented by the general formula: Ti.sub.xAl.sub.yN.sub.z (where 0.70y/(x+y)0.95, 0.4z0.5, and x+y+z=1), and the crystal structure thereof is a hexagonal wurtzite-type single phase.

An electronic component is disclosed. In an embodiment, the electronic component includes a plurality of functional layers arranged one on top of the other forming a stack, first inner electrodes, and second inner electrodes, each of the first and second inner electrodes arranged between two adjacent functional layers. The electronic component further includes a first outer contact electrically connected to the first inner electrodes and a second outer contact electrically connected to the second inner electrodes, wherein the functional layers are selected such that the first and second outer contacts are electrically conductively connected to one another via the functional layers both in a basic state and in a hot state of the electronic component, wherein a temperature of the hot state is higher than a temperature of the basic state, and wherein the electronic component is an NTC component.

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.

An object is to provide a temperature sensor element that can suppress a reduction reaction of a heat sensitive body, even after a long time usage in a strong reducing atmosphere.

A temperature sensor element 1 includes: a heat sensitive body 11 of which electric resistance changes according to a temperature; a first coating layer 20 that covers a periphery of the heat sensitive body 11; a pair of lead-out wires 15 and 15 that are connected to the heat sensitive body 11, and also are led out in penetration through the first coating layer 20, toward a rear end side; a second coating layer 25 that covers a periphery of the pair of lead-out wires 15 and 15 which are led out in penetration through the first coating layer 20; and a third coating layer 30 that covers peripheries of the first coating layer 20 and the second coating layer 25. The second coating layer 25 is formed of a mixture of glass and at least one of chromium oxide, manganese oxide, ruthenium oxide powder, iridium oxide powder and platinum oxide.

Apparatus and methods related to negative differential resistance (NDR) are provided. An NDR device includes a spaced pair of electrodes and at least two different materials disposed there between. One of the two materials is characterized by negative thermal expansion, while the other material is characterized by positive thermal expansion. The two materials are further characterized by distinct electrical resistivities. The NDR device is characterized by a non-linear electrical resistance curve that includes a negative differential resistance range. The NDR device operates along the curve in accordance with an applied voltage across the pair of electrodes.

An electronic component that includes: a base body; wiring inside the base body; a glass film covering an outer surface of the base body; an underlying electrode electrically connected to the wiring and covering a part of the glass film; and a metal layer covering the underlying electrode, wherein the glass film includes an uncovered portion that is not covered with the underlying electrode and separated from an outer edge of the underlying electrode by more than 10 m, and a boundary portion that is not covered with the underlying electrode and not separated from the outer edge of the underlying electrode by more than 10 m, and a thickness of the boundary portion is larger than a thickness of the uncovered portion.

A composite that includes multiple first metal oxide particles containing at least one metal element that is at least one of Mn or Ni, and a first amorphous phase between the multiple first metal oxide particles and which contains the at least one first metal element.

A temperature sensor element includes: an element main body including a heat sensitive body including a thermistor sintered body of which the electrical characteristics change with temperature, and a pair of lead wires that is connected to the heat sensitive body through electrodes; and a protective layer that protects the heat sensitive body. The protective layer has an inner protective layer covering the heat sensitive body and an outer protective layer covering the outer side of the inner protective layer. The inner protective layer is formed of an aggregate of particles that are chemically stable with respect to the thermistor sintered body and made of non-metal.