From Power Electronics Handbook: Devices, Circuits and Applications, Second Edition
Bogdan M. Wilamowski,
Alabama Microelectronics Science and Technology Center, Auburn University,
Alabama , USA


Several devices from the static induction family such as: static induction transistor (SIT), static induction diode (SID), static induction thyristor, lateral punch-through transistor (LPTT), static induction transistor logic (SITL), static induction MOS transistor (SIMOS), and space charge limiting load (SCLL) are described. The theory of operation of static induction devices is given for both a current controlled by a potential barrier and a current controlled by space charge. The new concept of a punch-through emitter (PTE), which operates with majority carrier transport, is presented.

9.1 Introduction

Static induction devices were invented in 1975 by J. Nishizawa [1] and for many years Japan was the only country where static induction family devices were successfully fabricated. Static induction transistor can be considered as a short channel junction field effect transistor (JFET) device operating in pre-punch-through region. The number of devices in this family is growing with time. The SIT can operate with the power over 100 kW at 100 kHz; above 150 W at 3 GHz. [2]. These devices may operate upto THz frequencies [3, 4]. Static induction transistor logic had 100 times smaller switching energy than its I 2 L competitor [5, 6]. Static induction thyristor has many advantages over the traditional silicon controlled rectifier (SCR), and SID exhibits high switching speed, large reverse voltage, and low forward voltage drops [7].

9.2 Theory of Static Induction Devices

The cross section of the SIT is...

Products & Services
Transistors are electronic devices made of semiconductor material that amplify a signal or open or close a circuit.
Thyristor Surge Suppressors
Thyristor surge suppressors are semiconductor chips used to protect circuits and devices from over-voltage and over-current.
Small-Signal Bipolar Transistors (BJT)
Small-signal bipolar transistors (BJT) are semiconductors that amplify small AC or DC signals. They consist of a base n-type or p-type layer sandwiched between emitter and collector layers of the opposite type.
Optocouplers are capable of transferring an electrical signal between two circuits while isolating the circuits from each other.
Induction Heaters
Induction heaters use an electrical source to drive alternating current (AC) through a coil to heat metal objects.

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