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Static protection circuit structure

A circuit structure and electrostatic protection technology, applied in the direction of circuits, electrical components, electric solid devices, etc., to achieve the effect of avoiding disconnection

Inactive Publication Date: 2017-06-20
TRULY HUIZHOU SMART DISPLAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an electrostatic protection circuit structure, which stores electrostatic charge in the capacitor when electrostatic discharge occurs through the capacitor structure, and solves the technical problem of electrostatic protection for semiconductor devices

Method used

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Embodiment 1

[0020] see figure 1 , 2 , 3, this embodiment provides an electrostatic protection circuit structure, which is connected to the first working circuit 1, the second working circuit 2 and the DC signal source 4, and the first working circuit 1 and the second working circuit 2 pass signals The electrostatic protection circuit structure is a capacitor structure 5, the capacitor structure is a single capacitor or at least two parallel capacitors, one end of the capacitor structure 5 is connected to the signal line 3, and the other end is connected to the DC Signal source 4 is connected.

[0021] In this embodiment, the capacitor 51 in the capacitor structure 5 includes a multilayer insulating film layer 515, a first metal film layer 512, a second metal film layer 513 and a third metal film layer 514, and the first metal film layer Layer 512, the second metal film layer 513 and the third metal film layer 514 are arranged in parallel at intervals, and two adjacent metal film layers ...

Embodiment 2

[0023] see figure 1 , 4 , 5, this embodiment provides an electrostatic protection circuit structure, which is connected to the first working circuit 1, the second working circuit 2 and the DC signal source 4, and the first working circuit 1 and the second working circuit 2 pass signals The electrostatic protection circuit structure is a capacitor structure 5, the capacitor structure 5 is a single capacitor or at least two parallel capacitors, one end of the capacitor structure 5 is connected to the signal line 3, and the other end is connected to the DC signal source 4 connections.

[0024] In this embodiment, the capacitor 52 in the capacitor structure 5 includes a multilayer insulating film layer 529 and a fourth metal film layer 524, a fifth metal film layer 525, a sixth metal film layer 526, and a seventh metal film layer 527. and the eighth metal thin film layer 528, the fourth metal thin film layer 524, the fifth metal thin film layer 525, the sixth metal thin film lay...

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PUM

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Abstract

The invention provides a static protection circuit structure. The circuit structure is connected with a first working circuit, a second working circuit and a direct current signal source. The first working circuit is connected with the second working signal through a signal line. The circuit structure is a capacitor structure which is formed by a single capacitor or at least two parallelly connected capacitors. One end of each capacitor is connected with the signal line and the other end is connected with the direct current signal source. The beneficial effects of the circuit structure are that when at least one of the signal line, the first working circuit and the second working circuit is subjected to electrostatic discharge, electrostatic charge will be stored in the capacitor structure, thereby effectively preventing the signal line from being damaged caused by electric shocks, and electrostatic protection is effectively performed on the above three.

Description

technical field [0001] The invention relates to the technical field of electrostatic protection of semiconductor devices, in particular to an electrostatic protection circuit structure. Background technique [0002] With the continuous development of industrial technology, organic light emitting diode (Organic Light Emitting Diode, OLED) display has become a very popular emerging flat panel display product at home and abroad. OLED display has self-illumination, wide viewing angle, short response time, high color saturation and Strong restoring ability and so on. [0003] However, in the manufacturing process of the above-mentioned semiconductor devices, the generation of static electricity has caused a great impact on the normal operation and life of these devices, so the research on electrostatic protection has been paid more and more attention by people. In the field of semiconductor devices, such as integrated circuits, TFT displays and OLED displays, electrostatic damag...

Claims

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Application Information

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IPC IPC(8): H01L23/60
CPCH01L23/60
Inventor 杜茂华陈天佑胡君文苏君海李建华
Owner TRULY HUIZHOU SMART DISPLAY
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