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ESD Protection Components

An electrostatic discharge protection and electrostatic discharge technology, which is applied in the direction of electrical components, electric solid devices, circuits, etc., can solve the problems of increasing the process, manufacturing time and cost of the electrostatic discharge protection circuit

Active Publication Date: 2019-10-18
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As mentioned above, in order to reduce the impact of electrostatic discharge on the internal circuit, it is often necessary to install an additional electrostatic discharge protection circuit. The design side needs to change the original IC space configuration and component design for the electrostatic discharge protection circuit, and the manufacturing also needs to focus on electrostatic discharge. The protection circuit increases the process, which leads to an increase in manufacturing time and cost

Method used

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Examples

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no. 2 example

[0063] Similar to the second embodiment, the first pad PAD1 and the second pad PAD2 are respectively connected to the ground terminal GND. A plurality of gap structures GAP1 and GAP2 are arranged respectively between the input / output pad I / O PAD and the first pad PAD1 and the second pad PAD2, which are configured so that when an electrostatic discharge event occurs, the electrostatic discharge current Iesd1 depends on There is a conduction path between the input / output pad I / O PAD and the first pad PAD1 connected to the ground terminal GND (as shown by the arrow in the figure), and the electrostatic discharge current Iesd2 depends on the input / output pad I / O There is a conduction path between PAD and the second pad PAD2 connected to the ground terminal GND (shown by another arrow in the figure). In addition, in this embodiment, two gap structures GAP1 and GAP2 are set corresponding to the first welding pad PAD1 and the second welding pad PAD2, the purpose of which is to provid...

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Abstract

The embodiment of the invention discloses an electrostatic discharge protection component which is used to export an electrostatic discharge current between an internal circuit and an input / output end when an electrostatic discharge event occurs. The electrostatic discharge protection component comprises an input / output welding pad, a conductor, and a gap structure. The input / output welding pad is connected between an input / output end and an internal circuit. The conductor is connected with a grounding end. The gap structure is arranged between the input / output welding pad and the conductor, and is configured to enable an electrostatic discharge current to think that there is a conductive path between the input / output welding pad and the conductor connected with the grounding end when an electrostatic discharge event occurs. The burden on the design side can be reduced. The cost can be reduced effectively. The space utilization rate can be increased substantially.

Description

technical field [0001] The present invention relates to an electrostatic discharge (ESD) protection element, in particular to an electrostatic discharge protection element used to derive an electrostatic discharge current between an internal circuit and an input / output terminal when an electrostatic discharge event occurs . Background technique [0002] In an integrated circuit, in order to prevent a large amount of charge from being transferred into the integrated circuit through the I / O pin of the integrated circuit in a very short time, and destroy the internal circuit of the integrated circuit (internal circuit), usually the internal circuit and the I / O An electrostatic discharge protection circuit is provided between the O pins. When excessive transient voltage or current is generated, the electrostatic discharge protection circuit can react immediately and guide the excessive transient voltage or current to the voltage source to avoid damage caused by transient voltag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/02
Inventor 曹太和颜承正
Owner REALTEK SEMICON CORP