Method for manufacturing a thermistor having a negative temperature coefficient in multi-layer technology
US5500996A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1993 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Feb 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49085
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a method for manufacturing a thermistor having a negative temperature coefficient in multi-layer technology, a plurality of layers are produced of ceramic material by producing a suspension and then drawing out with a stripping technique to form an extremely thin film from which the individual ceramic material layers are formed. By a silk screening technique, metal coats are applied onto the ceramic metal layers, the metal coats containing at least one precious metal as a critical constituent selected from the group consisting of Hg, Au, Pd, and Pt. The metal layers extend from one side edge of the ceramic layer over the ceramic layer and stop short of and are spaced from the opposite side edge. The ceramic layers are stacked on top of one another, but with an alternating offset of the metal coats. A solderable metallization is applied at sides of the stack and is connected to every other coat at the respective sides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.