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US 2019/0296545 A1Published application
Circuit of protection against electrostatic discharges
AssigneeSTMicroelectronics (Tours) SAS
InventorMathieu ROUVIERE
Life of this patent
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Abstract
A circuit for protecting against electrostatic discharges includes two avalanche circuit components having different turn-on delays with respect to a beginning of an electrostatic discharge. The two avalanche circuit components are coupled in parallel. The avalanche circuit component closer to an output node has a turn-on delay on the order of 30 ns, while the avalanche circuit component closer to an input node has a turn-on delay on the order of 1 ns.
Claims22
A circuit for protection against electrostatic discharges, comprising:
- a first avalanche circuit component;
- a second avalanche circuit component;
- wherein the first and second avalanche circuit components are coupled in parallel;
- and
- wherein the first and second avalanche circuit components have different turn-on delays with respect to a beginning of an electrostatic discharge.
2 more elements
An electrostatic discharge (ESD) protection discharge circuit, comprising:
- an input node;
- an output node;
- a first avalanche circuit component coupled between the input node and a reference node;
- and
- a second avalanche circuit component coupled between the output node and the reference node;
- wherein the first avalanche circuit component has a turn-on delay longer than a turn-on delay of the second avalanche circuit component.
3 more elements
Dependencies are inferred from the claim text.