Voltage regulating semiconductor device

Claim 1

A SEMICONDUCTIVE VOLTAGE REGULATING DEVICE COMPRISING A PLURALITY OF LAYERS IN A SEMICONDUCTIVE MATERIAL, ADJACENT LAYERS BEING OF OPPOSITE CONDUCTIVITY TYPE, SAID LAYERS FORMING AT LEAST EMITTER AND COLLECTOR JUNCTIONS SAID EMITTER JUNCTION INCLUDING MEANS FOR PRODUCING AN EMITTER EFFICIENCY WHICH INCREASES WITH INCREASING CURRENT TO THEREBY GIVE A NEGATIVE RESISTANCE, OHMIC CONTACTS FORMED WITH THE OUTER LAYERS, MEANS FOR APPLYING A VOLTAGE TO BE REGULATED ACROSS SAID DEVICE IN SUCH A DIRECTION AS TO REVERSE BIAS THE COLLECTOR JUNCTION, MEANS CONNECTED IN CIRCUIT WITH SAID DEVICE FOR LIMITING THE CURRENT THROUGH SAID DEVICE AS A RESULT OF THE UNREGULATED VOLTAGE SO THAT IT IS OF SUCH MAGNITUDE THAT THE NEGATIVE RESISTANCE DUE TO INCREASED EFFICIENCY SUBSTANTIALLY CANCELS THE POSITIVE RESISTANCES IN THE DEVICE WHEREBY THE DEVICE HAS NEGLIGIBLE DYNAMIC IMPEDANCE OVER A LIMITED RANGE OF CURRENT, SAID DEVICE HAVING AN EMITTER TO BASE LAYER ALPHA IN THE RANGE OF 0.0001 TO 0.3 AND MEANS FOR OBTAINING A REGULATED VOLTAGE ACROSS SAID TERMINALS.