Dual thin film precision resistance trimming
US8493171B2 · kind B2 · utility
10Cited by
35References
18Claims
0Family size
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Key dates
| Filing date | Jul 3, 2012 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Jul 3, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49087
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A trimmable resistor for use in an integrated circuit is trimmed using a heater. The heater is selectively coupled to a voltage source. The application of voltage to the heater causes the heater temperature to increase and produce heat. The heat permeates through a thermal separator to the trimmable resistor. The resistance of the trimmable resistor is permanently increased or decreased when the temperature of the resistor is increased to a value within a particular range of temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.