The models presented by Lu and Taur, [1], for lightly doped double gate and surround gate MOSFETs each require numerical solution of a transcendental equation. In this paper we present compact solutions for the equations based on the Lambert function, [2]. These solutions are shown to be accurate compared with exact numerical solutions.

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Abstract-A monolithic integrated chip-scale surface plasmon resonance (SPR) sensor is demonstrated. The device consists of a pn photodiode covered with a periodic modified thin metal film whose lattice constant is on the order of the wavelength of light. The device performs real-time measurement of resonant wavelengths of enhanced optical transmission due to surface plasmon resonance, which are influenced by the presence of chemical or biological materials at the device's surface.

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