Electrostatic discharge circuit, apparatus and method for multi-voltage rail thin-gate output driver
TWI940620BActive Publication Date: 2026-10-01QUALCOMM INC
Patent Information
- Application Number
- TW111121501
- Authority / Receiving Office
- TW · TW
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-06-24
- Filing Date
- 2022-06-09
- Publication Date
- 2026-10-01
- Estimated Expiration
- 2042-06-08
Smart Images
Figure TWG2TB001913250_001 
Figure TWG2TB001913250_002 
Figure TWG2TB001913250_003
Abstract
The ESD protection circuitry in the interface circuitry includes: a first diode coupled between a first power supply of the integrated circuit device and an input / output pad of the integrated circuit device; a second diode coupled between a second power supply of the integrated circuit device and an input / output pad; and a resistive element coupling the second diode to the first diode and the input / output pad. The first power supply powers driver circuitry coupled to the input / output pad. The second power supply powers one or more core circuits of the integrated circuit device. The resistive element can be implemented as an interconnect configured to provide resistance that, during an electrostatic discharge event, generates a voltage difference between the terminals of the second diode and the corresponding terminals of the first diode.
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Citation Information
Patent Citations
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