Selected micro- and nano-systems developed recently at the Physical Electro
nics Laboratory of ETH Zurich are reviewed: (i) a fluxgate microsystem for
detection of the Earth's magnetic field; (ii) a capacitive chemical sensor
microsystem for detection of volatile organic compounds in air; and (iii) a
parallel scanning AFM chip. The micro- and nano-systems combine sensor str
uctures and read-out circuitry on a single chip and are fabricated using in
dustrial CMOS technology in combination with post-processing micromachining
and film deposition.