Coated wire and film resistor
US8138881B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2008 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Jun 29, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49098
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A coated wire is solderable with soft solder while maintaining separate phases of the core and the coating. A 100 μm to 400 μm thick nickel wire may be coated galvanically with silver. For a film resistor with coated wires as connection wires, including a platinum measurement resistor on an electrically insulating substrate and connection wires connected to the measurement resistor, the connection wires have a coated nickel core. The coating may be made of silver or glass or ceramic or a mixture of these materials, or on its outside may be made of glass or ceramic or a mixture of these materials. For producing film resistors a thin metal or glass component is deposited on a connection wire connected to a track conductor arranged on an electrically insulating substrate, and a thick glass paste is deposited and fired on this metal or glass component. For mass production of film, several film resistors encased together in glass may be partitioned by fracturing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.