The Frohmann-Bentchkowsky EPROM cell is programmed by utilizing biasing
voltages which are sufficient to induce hot punchthrough holes to flow
from the source region to the drain region, and insufficient to induce
avalanche breakdown at the drain-to-semiconductor material junction. In
addition, the Frohmann-Bentchkowsky EPROM cell is programmable with CMOS
compatible voltages by forming the physical floating gate length of the
cell to be less than the minimum physical gate length of the CMOS devices.