Title :
A programmable intraocular CMOS pressure sensor system implant
Author :
Stangel, K. ; Kolnsberg, S. ; Hammerschmidt, D. ; Hosticka, B.J. ; Trieu, H.K. ; Mokwa, W.
Author_Institution :
Fraunhofer Inst. of Microelectron. Circuits & Syst., Duisberg, Germany
fDate :
7/1/2001 12:00:00 AM
Abstract :
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
Keywords :
CMOS integrated circuits; biomedical electronics; calibration; eye; microsensors; mixed analogue-digital integrated circuits; patient monitoring; pressure sensors; prosthetics; radio data systems; readout electronics; temperature sensors; transceivers; transponders; 1.2 micron; CMOS pressure sensor system; RF transponder; batteryless operation; calibration electronics; digital control unit; implant; intraocular pressure; n-well CMOS process; on-chip micromechanical pressure sensor array; readout electronics; temperature sensor; wireless data transmission; wireless power reception; Calibration; Digital control; Implants; Micromechanical devices; Radio frequency; Sensor arrays; Sensor systems; Temperature sensors; Transponders; Wireless sensor networks;
Journal_Title :
Solid-State Circuits, IEEE Journal of
