Patent ID: 9548292
Date: 2017-01-17
CPC Classifications: H01L

Claim:
1. An integrated circuit comprising: a substrate; a resistor having a first terminal, a second terminal, and a resistive body between the first and second terminals, wherein: a diode having an anode and a cathode, wherein the cathode includes the N+ type buried layer, and the anode includes a P+ type buried layer that abuts the N+ type buried layer; a switch having a first current terminal, a second current terminal, and a control electrode, wherein the first current terminal includes a P+ type diffusion layer, the control electrode is coupled to the second terminal of the resistor and the cathode of the diode, wherein the second current terminal includes a P+ drawing layer that abuts the P+ type buried layer and is electrically connected to a second power supply terminal; and a cathode electrode, wherein: