US 12,142,661 B2
Automatic reverse blocking bidirectional switch
Jonas Emanuel Huber, Aarau (CH); Johann Kolar, Zurich (CH); and Kennith Kin Leong, Villach (AT)
Assigned to Infineon Technologies Austria AG, Villach (AT)
Filed by Infineon Technologies Austria AG, Villach (AT)
Filed on Dec. 6, 2021, as Appl. No. 17/542,660.
Prior Publication US 2023/0178626 A1, Jun. 8, 2023
Int. Cl. H01L 29/66 (2006.01); H01L 29/10 (2006.01)
CPC H01L 29/66068 (2013.01) [H01L 29/10 (2013.01); H01L 29/66348 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A monolithically integrated bidirectional switch, comprising:
a current input terminal;
a current output terminal;
a control terminal;
a compound semiconductor substrate;
a common drift region in the compound semiconductor substrate and in series between the current input terminal and the current output terminal;
a first gate; and
a second gate,
wherein the first gate is electrically connected to the control terminal and the second gate is electrically connected to the current input terminal, such that the monolithically integrated bidirectional switch is configured to block voltages of both polarities and conduct current in a single direction from the current input terminal to the current output terminal through the common drift region via active control of the first gate.