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ESD countermeasures

A technology of components and electrostatics, applied in the field of electrostatic response components, to achieve the effects of small electrostatic capacitance, suppression of short-circuit damage or peak voltage, short-circuit rate or excellent durability

Inactive Publication Date: 2016-04-13
TDK CORPARATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, durability problems caused by repeated operations are also listed, and it is necessary to suppress the peak voltage after multiple discharges.

Method used

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Examples

Experimental program
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Effect test

no. 1 Embodiment approach

[0060] figure 1 It is a schematic perspective view schematically showing the electrostatic countermeasure device of this embodiment. figure 2 It is a schematic cross-sectional view schematically showing the electrostatic countermeasure device of this embodiment. image 3 yes figure 2 The II-II line sectional view in.

[0061] The electrostatic countermeasure device 100 includes an insulating substrate 11, a pair of electrodes 21 and 22 arranged on the insulating substrate 11, a discharge triggering part 31 arranged between these electrodes 21 and 22, and a device electrically connected to the electrodes 21 and 22. Terminal electrode 41 (refer to Figure 8 ), and an insulating protective layer 51 formed to cover the discharge triggering portion 31. The discharge inducing part 31 has a structure in which minute voids are dispersed discontinuously, and has a hollow structure having at least one hollow part 31a, 31b. Here, the pair of electrodes 21, 22 is arranged such that...

Embodiment 1

[0087] First, if Figure 6 As shown, the preparation will consist of a principal component of Al 2 o 3 A green sheet obtained by thinning a material composed of a glass component is used as an insulating substrate 11 . On the one insulating surface 11 a , Ag paste was printed by screen printing so as to have a thickness of 0.2 μm, thereby patterning a pair of strip-shaped electrodes 21 and 22 arranged facing each other. For a pair of printed electrodes, the length of the electrodes 21 and 22 is 0.5 mm, the width is 0.4 mm, and the gap distance ΔG between the electrodes 21 and 22 is 40 μm.

[0088] Below, such as Figure 7 As shown, the discharge triggering portion 31 is formed on the insulating substrate 11 and the electrodes 21 and 22 in the following order.

[0089] First, let SiO as the insulating inorganic material 34 2 Glass particles (manufactured by Nippon Yamamura Glass Co., Ltd., product serial number: ME13) as the main component are 10 vol%, and Al as the insula...

Embodiment 2

[0094] Except for the screen printing of the paste-like mixture for forming the hollow part, only one part is screen-printed in an ellipsoidal shape, and the same operation as in Example 1 is carried out to produce a structure composed of micro-voids 35 discontinuously scattered. And it has the discharge trigger part 31 of a hollow structure which has one hollow part 31a, and the electrostatic countermeasure device 100 of Example 2 was obtained.

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Abstract

According to the configuration of the present invention, there is provided an electrostatic countermeasure device that has a small capacitance, is excellent in short-circuit rate and durability, and can suppress short-circuit damage or peak voltage. The present invention provides a static electricity countermeasure device having an insulating substrate, electrodes separated from each other on the insulating substrate and arranged opposite to each other, and a discharge triggering part arranged between the electrodes, the discharge triggering part consisting of a minute gap. Discontinuously distributed porous structure, and has a hollow structure, the hollow structure has at least one hollow part, and the surface forming the hollow structure has a dense structure.

Description

technical field [0001] The present invention relates to an electrostatic countermeasure device, and particularly relates to an electrostatic countermeasure device useful for use in a high-speed transmission system or in combination with a common mode filter. Background technique [0002] In recent years, the miniaturization and high performance of electronic devices have rapidly progressed. In addition, as typified by high-speed transmission systems such as USB2.0, S-ATA2, and HDMI, high-frequency transmission speeds and low drive voltages have been significantly developed. On the other hand, the withstand voltage of the electronic components used for an electronic device decreases with miniaturization of an electronic device or reduction of driving voltage. Therefore, the protection against overvoltage represented by the electrostatic pulse generated when the human body comes into contact with the terminals of electronic equipment has become an important technical issue. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01T4/12H01T1/20H01T4/10
CPCH01T4/12H01T1/20H01T4/10H05F3/04
Inventor 朝仓健作铃木真吾藤森敬洋
Owner TDK CORPARATION
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