Hall element with segmented field plate

Details Hall element with segmented field plate Hall element with segmented field plate

2006-03-21

2006-03-21

Crane, Sara (Department: 2811)

Active solid-state devices (e.g., transistors, solid-state diode

Responsive to non-electrical signal

Magnetic field

C257S422000, C257S488000

Reexamination Certificate

active

07015557

ABSTRACT:
A Hall element is provided with a segmented field plate. Dynamic bias control is applied to the segments of the field plate. In one embodiment, a feedback signal is derived from an amplified output of the Hall element. The feedback signal is applied to the segments of the field plate in order to control sheet conductivity in specific localized areas. In one embodiment, a metal field plate is split into four segments along lines between bias and sense contacts of the Hall element. Opposing diagonal segments are electrically connected.

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Munter, P., “Spinning-Current Method for Offset Reduction in Silicon Hall Plates”, Delft University Press, Delft, The Netherlands, (1992), 1-149.

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