Patent ID: 7622753

Claim:
A component formed in a semiconductor substrate of a first conductivity type, comprising two input terminals and two output terminals and comprising: a first diode having an anode connected to a first input terminal and having a cathode connected to a first output terminal; a second diode having an anode connected to a second output terminal and having a cathode connected to the first input terminal; a normally-off one-way switch controllable to be turned on having an anode connected to the first output terminal and having a cathode connected to the second output terminal; and a third diode having an anode connected to the second output terminal and having a cathode connected to the first output terminal; wherein the first, second, and third diodes are formed in a first portion of the substrate and the switch is formed in a second portion of the substrate separated from the first portion by a wall of a second conductivity type crossing the entire substrate thickness and wherein the second diode is formed horizontally and the first and third diodes and the switch are formed vertically.