Ignition circuit
AssigneeSTMicroelectronics S.r.l.
InventorsSamuel Menard, Benjamin Cheron, Arnaud Edet
Life of this patent
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Abstract
A component formed in a substrate of a first conductivity type, having two inputs and two outputs and: a first diode having its anode connected to a first input and having its cathode connected to a first output; a second diode having its anode connected to a second output and having its cathode connected to the first input; a one-way switch having its anode connected to the first output, its cathode being connected to the second output; and a third diode having its anode connected to the second output, its cathode being connected to the first output; the first, second, and third diodes being formed in a first portion of the substrate separated by a wall of the second conductivity type from a second substrate portion comprising the switch.
Claims9
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.
Dependencies are inferred from the claim text.