High-ohmic resistors using nanometer-thin pure-boron chemical-vapour-deposited layers

Integrated resistors are fabricated by using pure boron (PureB) depositions to create a p-type conductive layer on n-type silicon. Sheet resistance values in the 100 kΩ/□ range are reliably and reproducibly realized. The resistors made in this material are linear and display low temperature coefficients of a few hundred ppm/°C and good tolerances.

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