Tetrode Transistor - Modern Tetrode Transistors

Modern Tetrode Transistors

• Dual emitter transistor, used in two input transistor-transistor logic gates.
• Dual collector transistor, used in two output integrated injection logic gates.
• Diffused planar silicon bipolar junction transistor, used in some integrated circuits. This transistor, apart from the three electrodes, emitter, base and collector, has a fourth electrode or grid made of conducting material placed near the emitter-base junction from which it is insulated by a silica layer.
• Field effect transistors having two gates.