Abstract
Electron emission from single, isolated traps is observed in stepped current transients of micrometer-size metal oxide semiconductor field-effect transistors. Deep level transient spectroscopy evaluation is performed by counting traps to estimate the average state density Dit ≊6 ×1010 eV−1 cm−2 close to the conduction-band edge (Ec−Eit =20–250 meV). The capture coefficient (prefactor for activated emission) is determined to Bn =10−21 cm3 s−1 for these slow traps.