Operating circuit

A technology for operating circuits and core circuits, applied to circuit devices, emergency protection circuit devices, electrical components, etc., can solve problems such as integrated circuit damage

Active Publication Date: 2021-02-09
VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Especially as the size continues to shrink to the level of deep sub-nanometers, the gate oxide layer of metal oxide semiconduc

Method used

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Embodiment Construction

[0035] In order to make the purpose, features and advantages of the present invention more comprehensible, the following specifically cites the embodiments, together with the accompanying drawings, for a detailed description. The description of the present invention provides different examples to illustrate the technical features of different implementations of the present invention. Wherein, the configuration of each component in the embodiment is for illustration, not for limiting the present invention. In addition, the partial repetition of reference numerals in the embodiments does not imply the relationship between different embodiments for the sake of simplicity of description.

[0036] figure 1 It is a possible schematic diagram of the operating circuit of the present invention. As shown in the figure, the operation circuit 100 includes a core circuit 110 , an N-type transistor NT1 , an ESD protection circuit 120 and a control circuit 130 . The core circuit 110 is co...

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Abstract

An operating circuit is coupled between an input/output pad and a ground terminal, and includes a core circuit, an N-type transistor, an electrostatic discharge protection circuit and a control circuit. The N-type transistor determines whether to conduct a path between the core circuit and the ground terminal according to a voltage level of a specific node. The electrostatic discharge protection circuit is coupled between the input/output pad and the core circuit, is used for preventing the electrostatic discharge current from flowing through the core circuit, and comprises a detection circuitand a release assembly. The detection circuit detects whether an electrostatic discharge event occurs in the input/output pad or not and is used for generating a detection signal. The release assembly provides a release path for releasing the electrostatic discharge current according to the detection signal. The control circuit controls the voltage level of the specific node according to the detection signal.

Description

technical field [0001] The present invention relates to an operating circuit, in particular to an operating circuit with electrostatic discharge (electrostatic discharge; ESD) protection function. Background technique [0002] Component damage caused by electrostatic discharge (ESD) has become one of the most important reliability issues for integrated circuit products. Especially as the size continues to shrink to the level of deep sub-nanometers, the gate oxide layer of metal oxide semiconductors is getting thinner and thinner, and integrated circuits are more likely to be damaged by electrostatic discharge phenomena. Contents of the invention [0003] The invention provides an operation circuit, which is coupled between an input and output pad and a ground terminal, and includes a core circuit, an N-type transistor, an electrostatic discharge protection circuit and a control circuit. The N-type transistor determines whether to conduct a path between the core circuit an...

Claims

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Application Information

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IPC IPC(8): H02H9/04
CPCH02H9/046
Inventor 黄绍璋陈立凡李庆和林庭佑陈俊智许凯杰林志轩王裕凯
Owner VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION
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