UNIT 1 – BJT & FET
, FIELD EFFECT TRANSISTOR
• Flow of current through the conducting region – controlled by an electric field.
• Current conduction – Majority charge carriers – Unipolar device.
• Based on construction,
• Junction FET (JFET)
• Metal Oxide Semiconductor FET (MOSFET) or Insulated Gate FET (IGFET) or Metal
Transistor(MOST)
• Depending on majority carriers,
• N – Channel JFET (Electrons)
• P – Channel JFET (Holes)
, FIELD EFFECT TRANSISTOR
• Flow of current through the conducting region – controlled by an electric field.
• Current conduction – Majority charge carriers – Unipolar device.
• Based on construction,
• Junction FET (JFET)
• Metal Oxide Semiconductor FET (MOSFET) or Insulated Gate FET (IGFET) or Metal
Transistor(MOST)
• Depending on majority carriers,
• N – Channel JFET (Electrons)
• P – Channel JFET (Holes)
