Positive coefficient thin-film thermistor
US5214738A · kind A · utility
6Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1991 |
| Grant date | May 25, 1993 |
| Priority date | — |
| Expiry date | Mar 22, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C7/021
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive coefficient thin-film thermistor which is a thin film exhibiting a positive temperature coefficient (PTC) characteristic and having a thickness of 0.005 to 5 .mu.m and electrodes as constituting elements, and wherein the thin film is compound of a barium titanate based composition and the PTC characteristic is represented by a resistance variation in the transition of region of 1-10 orders of magnitude and a maximum resistance temperature variation rate of 1-20 orders/.degree.C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.