SiO$_2$ Barriers for Increasing Gain Events in Solid-State Impact-Ionization Multipliers

Improving Gain Efficiency in Planar Impact Ionization Devices

“…SIMs have been fabricated on a p+ substrate with a p-epitaxial layer (Figure 1a). The injection and output electrodes are doped n+ [2][3]. Signal electrons enter the SIM through the input electrode from a current source.…”