We report the observation of room temperature operation demonstrated by a s
ingle-hole silicon memory cell in which the single-hole silicon transistor
is used as an electrometer. This memory cell is realized on the basis of th
e quantum wire and the quantum dot which are self-assembly formed as a. mul
tiple-tunnel junction by short-time diffusion of boron into the Si(100)-waf
er. The single-hole device obtained exhibits the Coulomb oscillations and t
he memory effects such as the hysteresis in C-V characteristics which are r
espectively revealed by varying the gate and drain-source voltage in the pr
ocess of the local tunneling spectroscopy measurements.