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A programmable intraocular CMOS pressure sensor system implant

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6 Author(s)
Stangel, K. ; Fraunhofer Inst. of Microelectron. Circuits & Syst., Duisberg, Germany ; Kolnsberg, S. ; Hammerschmidt, D. ; Hosticka, B.J.
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We present a programmable intraocular pressure sensor system implant integrated on a single CMOS chip. It contains an on-chip micromechanical pressure sensor array, a temperature sensor, readout and calibration electronics, a μC-based digital control unit, and an RF transponder. The transponder enables wireless data transmission and wireless power reception, thus making batteryless operation feasible. The chip has been fabricated in a 1.2-μm n-well CMOS process complemented by additional processing steps

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Solid-State Circuits, IEEE Journal of  (Volume:36 ,  Issue: 7 )