Patent ID: 11942473
Assignee: ANALOG DEVICES, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A protection device, comprising:
an anode terminal and a cathode terminal;
a first silicon controlled rectifier;
an NPN bipolar transistor and a PNP bipolar transistor, the NPN bipolar transistor and the PNP bipolar transistor are configured to provide a second silicon controlled rectifier in parallel to the first silicon controlled rectifier, wherein two or more paths for current conduction are present during a positive overstress transient that increases a voltage of the anode terminal relative to the cathode terminal, including a first path through the first silicon controlled rectifier and a second path through the PNP bipolar transistor; and
a plurality of deep N-well (DNW) isolated diodes coupled to a third path of the two or more paths.