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Ic providing ESD protection and ESD protection system

A technology for electrostatic discharge protection and integrated circuits, applied in the direction of emergency protection circuit devices, emergency protection circuit devices, circuits, etc. for limiting overcurrent/overvoltage, and can solve problems such as complex design of highly sensitive input and output connectors

Active Publication Date: 2015-03-25
FAIRCHILD SEMICON SUZHOU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ESD protection can complicate the design of highly sensitive input and output connectors

Method used

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  • Ic providing ESD protection and ESD protection system
  • Ic providing ESD protection and ESD protection system
  • Ic providing ESD protection and ESD protection system

Examples

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example 1

[0022] Example 1 includes subject matter (such as a device or integrated circuit) that includes: an external IC connector, a high impedance circuit, a bias circuit communicatively connected to the external IC connector through the high impedance circuit, connected to the bias circuit to form a circuit shunt path Electrostatic discharge (ESD) protection circuit. The circuit shunt path leads from the external IC connector through the high impedance circuit to the ESD protection circuit.

[0023] In Example 2, the subject matter of Example 1 can optionally include an external IC connector, which can be an input connector that receives an electrical input signal. The biasing circuit may optionally include a common-mode biasing circuit configured to bias the received electrical input signal to a common-mode voltage, and wherein the biasing circuit includes a high-impedance circuit connected to Output from external IC connector.

[0024] In Example 3, the subject matter of one or ...

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Abstract

An apparatus comprises an integrated circuit (IC) including an external IC connection, a high impedance circuit, a biasing circuit communicatively coupled to the external IC connection via the high impedance circuit, and an electro-static discharge (ESD) protection circuit coupled to the biasing circuit to form a circuit shunt path leading from the IC external connection to the ESD protection circuit via the high impedance circuit.

Description

technical field [0001] In general terms, this article is concerned with providing ESD protection for ICs, and more specifically, it is concerned with providing ESD protection for the inputs and outputs of ICs with specific impedance requirements. Background technique [0002] An integrated circuit (IC) can receive electrical signals from off-chip electronics. Electrostatic discharge (ESD) protection is a concern for integrated circuits that cannot use large capacitive circuits to sink current from an ESD event. Typically, the input and output connections of the IC include circuitry to prevent damage to the IC by an ESD event by routing the ESD to ground. However, ESD protection can complicate the design of highly sensitive input and output connections. Contents of the invention [0003] An example device includes an IC having an external IC connector, a high impedance circuit, a bias circuit communicatively connected to the external IC connector through the high impedanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H9/02
CPCH02H9/046H01L27/0288H01L27/0292H01L2924/3011Y10T29/49117
Inventor 克里斯托弗·A·贝内特科奈斯·P·斯诺登
Owner FAIRCHILD SEMICON SUZHOU