EP0262601A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Thermistor and method for producing the same
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1987-09-25
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Granted: —
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Expires: 2007-09-25
Abstract
Abstract A thermistor comprising a substrate and a heat sensitive element consisting of a semiconductive thin film diamond, which can measure high temperatures up to 800°C or higher.
Inventors
- 👤 Naoji C/O Itami Works Of Sumitomo Fujimori
- 👤 Takahiro C/O Itami Works Of Sumitomo Imai
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 03:16
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/06; H01C7/00; H01C7/04; H01C7/041
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
16 words
A thermistor comprising a substrate and a heat sensitive element consisting of a thin film diamond.
Claim 2
Dependent Claim
16 words
A thermistor comprising a substrate and a heat sensitive element consisting of a thin film diamond.
Claim 3
Dependent Claim
28 words
The thermistor according to claim 1, wherein the thin film diamond is formed by a vapor phase synthetic method and has a thickness of 0.05 to 100 µm.
Claim 4
Dependent Claim
20 words
The thermistor according to claim 1, wherein the thin film diamond is a semiconductive thin film diamond containing a dopant.
Claim 5
Dependent Claim
32 words
The thermistor according to claim 3, wherein the dopant is at least one element selected from the group consisting of boron, aluminum, phosphorus, arsenic, antimony, silicon, lithium, sulfur, selenium, chlorine and nitrogen.
Claim 6
Dependent Claim
13 words
The thermistor according to claim 1, wherein the substrate is single crystal diamond.
Claim 7
Independent Claim
56 words
A method for producing a thermistor which comprises forming a diamond thin film which optionally contains an impurity element as a dopant on a substrate by a vapor phase synthetic method, forming at least one ohmic electrode on the surface of the diamond thin film and attaching a lead wire to at least one ohmic electrode.
Claim 8
Independent Claim
56 words
A method for producing a thermistor which comprises forming a diamond thin film which optionally contains an impurity element as a dopant on a substrate by a vapor phase synthetic method, forming at least one ohmic electrode on the surface of the diamond thin film and attaching a lead wire to at least one ohmic electrode.
Claim 9
Dependent Claim
20 words
The method according to claim 6, which further comprising trimming the diamond thin film to adjust resistance of the thermistor.
Claim 10
Dependent Claim
13 words
The method according to claim 6, wherein the substrate comprises single crystal diamond.
References Cited (Backward Citations)
No citation records indexed.
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