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Connection pad electrostatic protection element of integrated circuit

An integrated circuit, electrostatic protection technology, applied in electrical components, circuits, electrical solid devices, etc., can solve problems such as core circuit damage

Inactive Publication Date: 2017-01-04
ADVANCED ANALOG TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the connection pad generates static electricity, the static electricity will enter the core circuit through the connection pad, which may cause the core circuit to be damaged by static electricity

Method used

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  • Connection pad electrostatic protection element of integrated circuit
  • Connection pad electrostatic protection element of integrated circuit
  • Connection pad electrostatic protection element of integrated circuit

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Embodiment Construction

[0037] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0038] An integrated circuit mainly includes a substrate and a conductive layer and a bondpad located above the substrate. The substrate forms various circuit elements (such as resistors, capacitors, transistors, etc.) by means of doping, diffusion, or ion implantation. These circuit elements are electrically connected to each other through the conductive layer to form a core circuit (core), and the connection pads are electrically connected to the conductive layer and can be used as signal input / output (I / O) terminals or power terminals.

[0039] Taking any connection pad as an example, the electrostatic protection device of the present invention includes an electrostatic discharge structure and a plurality of conductive layers arranged at intervals up and down. The electrostatic discharge structure is formed inside the substr...

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PUM

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Abstract

Disclosed is a connection pad electrostatic protection element of integrated circuit. The integrated circuit comprises a substrate and a connection pad formed over the substrate. The electrostatic protection element comprises an electrostatic discharge structure and a plurality of conductive layers arranged up and down. The electrostatic discharge structure is formed inside the substrate and located below the connection pad. The plurality of conductive layers are formed over the substrate, and are located between the electrostatic discharge structure and the connection pad. The plurality of conductive layers are electrically connected to the electrostatic discharge structure and the connection pad; when there is static electricity generation of connection pad, static electricity energy enters the electrostatic discharge structure through the conductive layers. Static electricity is guided to ground by the electrostatic discharge structure for achieving effect of static electricity protection.

Description

technical field [0001] The invention relates to an electrostatic protection element, in particular to an electrostatic protection element for a connection pad of an integrated circuit. Background technique [0002] The integrated circuit mainly includes a core circuit (core), which is located under the connection pad (bondpad), and the connection pad is electrically connected to the core circuit (core), and the connection pad can be used as a signal input / output (I / O) terminal or a power supply (power) terminal use. With the advancement of semiconductor technology, the size of integrated circuits has become smaller and smaller, and the layout of its internal core circuits has become more and more precise. However, when the connection pads generate static electricity, the static electricity will enter the core circuit through the connection pads, which may cause the core circuit to be damaged by static electricity. Contents of the invention [0003] Therefore, the main pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L23/60H01L27/02
CPCH01L2224/05
Inventor 林硕彦
Owner ADVANCED ANALOG TECH INC