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A multi-purpose chip electrostatic protection method

An electrostatic protection, multi-purpose technology, applied in the direction of emergency protection circuit devices, emergency protection circuit devices, circuits, etc. used to limit overcurrent/overvoltage, can solve the problems of increasing static leakage, increasing chip area, etc., and achieve reduction Leakage, increased chip area, and improved current protection capabilities

Active Publication Date: 2021-06-11
VERISILICON MICROELECTRONICS SHANGHAI +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to meet the electrostatic protection requirements of the system, more electrostatic protection circuits need to be added, but adding more electrostatic protection circuits not only increases the chip area, but also increases the static leakage

Method used

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  • A multi-purpose chip electrostatic protection method
  • A multi-purpose chip electrostatic protection method
  • A multi-purpose chip electrostatic protection method

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Embodiment Construction

[0040] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0041] see Figure 1 to Figure 5 . It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arb...

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Abstract

The invention provides a multi-purpose chip electrostatic protection method, comprising: distributing idle I / Os in effective I / Os of various packages, setting the idle I / Os as tri-state I / Os through the system, and distributing the idle I / Os The three-state I / O is packaged together with the effective I / O to improve the electrostatic protection capability of the effective I / O, wherein the effective I / O includes an effective I / O pin, an effective power supply pin, and an effective ground pin. The multi-purpose chip electrostatic protection method of the present invention effectively utilizes the idle I / O in the multi-purpose chip, sets the idle I / O as an electrostatic protection circuit, and packages it together with the effective I / O, thereby improving the current protection capability of the chip, At the same time, leakage current is reduced without increasing chip area.

Description

technical field [0001] The invention relates to the field of integrated circuit design, in particular to an electrostatic protection method for a multipurpose chip. Background technique [0002] Electrostatic Discharge (ESD) protection is very important for integrated circuits, and many studies have been conducted in the field of integrated circuit design. Electrostatic discharge may occur no matter in the normal use, transportation and storage of electronic equipment, or in the process of producing and assembling various integrated circuit components. These electrostatic discharges, which are difficult to predict and prevent correctly, will damage integrated circuits, generate defective rates, and even cause serious losses. Special attention is paid to the design of electrostatic discharge protection circuits in the current design and manufacture of integrated circuits. The electrostatic discharge protection circuit is usually connected to the pin and connected in paralle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/02H02H9/04
Inventor 费伟斌肖艳周柏毓邹峰
Owner VERISILICON MICROELECTRONICS SHANGHAI