Thyristor Which Can Be Triggered Electrically And By Radiation, And Methods For Making Contact With It

摘要

A thyristor has a radiation-sensitive breakdown structure ( 20 ), a gate electrode ( 92 ) that is placed at a distance from the latter in a lateral direction and an ignition stage structure having at least one ignition stage ( 51, 91 ) equipped with an n-doped auxiliary emitter ( 51 ), which forms a pn-junction ( 55 ) together with the p-doped base ( 6 ), the thyristor being both electrically and radiation-ignited. In a method for contacting a thyristor that can be ignited by radiation with a gate electrode ( 92 ), a contact ram ( 200 ) that is adapted to the geometry of the gate electrode ( 92 ) is pressed against the thyristor. In a method for monitoring the ignition of a thyristor that is ignited by incident radiation, the electric voltage that is applied to the gate electrode ( 92 ) or the electrically conductive electrode ( 105, 201 ) is monitored.