Dual thin film precision resistance trimming
US8242876B2 · kind B2 · utility
19Cited by
14References
19Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 17, 2009 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Jul 19, 2030 |
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.