What Techniques are Used to Control Threshold Voltage?
Several techniques are employed to control threshold voltage in nanoscale devices. These include:
High-k dielectrics: Using materials with high dielectric constants to reduce leakage currents and improve control over Vth. Strain engineering: Applying mechanical strain to the semiconductor to alter its electronic properties and adjust the threshold voltage. Doping engineering: Precisely controlling the doping levels in the semiconductor to achieve the desired Vth. Gate work function tuning: Selecting gate materials with specific work functions to achieve the desired threshold voltage.
