Tunable resistor and method for operating a tunable resistor

US7583527B2 · kind B2 · utility

Assignees

• Infineon Technologies AG · DE
• Altis Semiconductor, SNC · FR

Inventors

• Alexander Duch · Paris, FR
• Michael Kund · Bad Aibling, DE

Key dates

• Filing date: Sep 29, 2006
• Grant date: Sep 1, 2009
• Expiry date: Sep 29, 2026

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N70/8413

Abstract

A tunable resistor includes a resistor input terminal, a resistor output terminal, and at least one current path connected between the resistor input terminal and the resistor output terminal. The at least one current path runs through at least one memory cell of an arrangement of programmable microelectronic memory cells. A resistance adjuster adjusts the current path resistances of the current paths by programming the memory states of corresponding memory cells or which activates/deactivates current paths such that the overall resistance between the resistor input terminal and the resistor output terminal is set to a predetermined resistance target value.