Resistance material with colloidal AlOOH
US3989874A · kind A · utility
2Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1975 |
| Grant date | Nov 2, 1976 |
| Priority date | — |
| Expiry date | Jan 23, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C17/0658
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a noble-metal containing resistor paste, there is added a quantity of colloidal aluminum oxide hydroxide (AlOOH) in order to make an upward adjustment in the TCR of the fired resistor film. The additions of AlOOH have only a small effect on the resistivity and usually causes a downward change in the resistivity value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.