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A programmable intraocular CMOS pressure sensor system implant

: Stangel, K.; Kolnsberg, S.; Hammerschmidt, D.; Hosticka, B.J.; Trieu, H.-K.; Mokwa, W.

Halonen, K.:
ESSCIRC 2000. Proceedings of the 26th European Solid-State Circuits Conference
Gif-sur-Yvette: Ed. Frontieres, 2000
ISBN: 2-86332-249-4
S.400-403 : Lit.
European Solid State Circuits Conference (ESSCIRC) <26, 2000, Stockholm>
Fraunhofer IMS ()
pressure sensor; implant; intraocular pressure sensor; Augeninnendruck; transponder; implantierbares System

In this contribution we present a programmable intraocular pressure sensor system implant integrated on a single CMOS chip. It contains 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.