What Does VFB Stand For?

VFB stands for Flat Band Voltage

VFB, or Flat Band Voltage, refers to the voltage at which the energy bands of a semiconductor are flat, indicating that there is no electric field within the material. This condition occurs when the surface potential is equal to the bulk potential, leading to an equal distribution of charge carriers. VFB is a critical parameter in semiconductor device physics, particularly in the characterization of metal-oxide-semiconductor (MOS) structures, as it influences threshold voltage and device performance.