G. Baur et al., HIGH-VOLTAGE RESOLUTION WITH A LASER-DIODE BASED ELECTROOPTIC MEASUREMENT SYSTEM, Microelectronic engineering, 24(1-4), 1994, pp. 393-400
A laser diode based measurement system with low invasiveness for the d
etection of fast electrical waveforms on lines in integrated circuits
has been developed. The system employs an external electro-optic cryst
al sensor with a reference electrode for calibrated amplitude measurem
ents. Its high voltage sensitivity of 2 mV/square-root Hz and high tem
poral resolution are demonstrated by measurements of a FM-IF-demodulat
or circuit and CMOS handshake circuits.