Lucent Technologies Inc.

Rogelio Pe{acute Over (o)}n

Maarten Visee

A variable resistor, a method of manufacturing the same and a voltage bias circuit that incorporates at least one variable resistor. In one embodiment, the variable resistor includes: (1) a substrate including a doped region having an inherent resistance, (2) a controllable switch formed in the substrate, electrically coupled to the doped region and having a control terminal and (3) a controller, coupled to the control terminal, that toggles the controllable switch to modify a current flow through the doped region and thereby vary a resistance of the variable resistor.

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Gijon, Spain

Rogelio Pe{acute Over (o)}n