Method and apparatus for use in improving linearity of MOSFETS using an accumulated charge sink

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United States of America Patent

PATENT NO RE48944
SERIAL NO

16738787

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Abstract

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A method and apparatus for use in improving the linearity characteristics of MOSFET devices using an accumulated charge sink (ACS) are disclosed. The method and apparatus are adapted to remove, reduce, or otherwise control accumulated charge in SOI MOSFETs, thereby yielding improvements in FET performance characteristics. In one exemplary embodiment, a circuit having at least one SOI MOSFET is configured to operate in an accumulated charge regime. An accumulated charge sink, operatively coupled to the body of the SOI MOSFET, eliminates, removes or otherwise controls accumulated charge when the FET is operated in the accumulated charge regime, thereby reducing the nonlinearity of the parasitic off-state source-to-drain capacitance of the SOI MOSFET. In RF switch circuits implemented with the improved SOI MOSFET devices, harmonic and intermodulation distortion is reduced by removing or otherwise controlling the accumulated charge when the SOI MOSFET operates in an accumulated charge regime.

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Patent Owner(s)

Patent OwnerAddress
PSEMI CORPORATION9369 CARROLL PARK DRIVE SAN DIEGO CA 92121

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brindle, Christopher N Poway, US 62 2795
Burgener, Mark L San Diego, US 90 5755
Imthurn, George P San Diego, US 19 1300
Kelly, Dylan J San Diego, US 48 2805
Kemerling, Clint L Escondido, US 27 1545
Stuber, Michael A Carlsbad, US 91 3161
Welstand, Robert B San Diego, US 34 1308

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