Patent ID: 11881525
Assignee: IDEAL POWER INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A bidirectional double-base bipolar junction transistor comprising:
a first-upper trench defined on a first side of a substrate of semiconductor material, the first-upper trench defines a proximal opening at the first side and a distal end within the substrate;
an upper collector-emitter region disposed at the distal end of the first-upper trench;
a second-upper trench defined on the first side, the second-upper trench defines a proximal opening at the first side and a distal end within the substrate;
an upper base region disposed at the distal end of the second-upper trench;
a lower base region associated with a second side of the substrate; and
a lower collector-emitter region associated with the second side.