Switch with electrostatic discharge (esd) protection
AssigneeQUALCOMM Incorporated
InventorsMuhammad HASSAN, Bhushan Shanti ASURI, Jeremy Darren DUNWORTH, Ravi SRIDHARA
Life of this patent
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Abstract
According to certain aspects, a chip includes a pad, a power amplifier, a transformer coupled between an output of the power amplifier and the pad, a transistor coupled between the transformer and a ground, and a first clamp circuit coupled between a gate of the transistor and a drain of the transistor.
Claims30
A chip, comprising:
- a pad;
- a power amplifier;
- a transformer coupled between an output of the power amplifier and the pad;
- a transistor coupled between the transformer and a ground;
- and
- a first clamp circuit coupled between a gate of the transistor and a drain of the transistor.
An apparatus, comprising:
- a chip comprising:
- a pad;
- a power amplifier;
- a transformer coupled between an output of the power amplifier and the pad;
- a transistor coupled between the transformer and a ground;
- and
- a first clamp circuit coupled between a gate of the transistor and a drain of the transistor;
- and
- an antenna coupled to the pad.
A method for electrostatic discharge (ESD) protection on a chip, the chip comprising a pad, a power amplifier, a transformer coupled between the power amplifier and the pad, and a transistor coupled between the transformer and a ground, the method comprising:
- during an ESD event, shunting current through a path in parallel with the transistor;
- and
- during the ESD event, clamping a voltage between a gate of the transistor and a drain of the transistor.
Dependencies are inferred from the claim text.