G. Sargsjan et al., ON-WAFER TESTING OF ICS USING FREE-RUNNING OPTOELECTRONIC SAMPLING AND CAPACITIVE COUPLING, Microelectronic engineering, 34(2), 1997, pp. 187-194
A new optoelectronic sampling technique is presented. The technique is
simple and overcomes many considerable difficulties with other sampli
ng techniques such as electro-optic sampling or optoelectronic samplin
g using photoconductive switching. The combination of a high speed dio
de with a load transistor or only one dual gate field effect transisto
r may be used as signal mixing output device for high frequency testin
g directly on the wafer.