ESD protection device
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United States of America Patent
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Aug 22, 2017
Grant Date -
May 14, 2015
app pub date -
Jan 20, 2015
filing date -
Aug 13, 2012
priority date (Note) -
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Abstract
An ESD protection device 1 includes a ceramic insulating material 10, first and second discharge electrodes 21 and 22, and a discharge auxiliary section 51. The discharge auxiliary section 51 is an electrode configured to reduce a discharge starting voltage between the first discharge electrode 21 and the second discharge electrode 22. The discharge auxiliary section 51 comprises a sintered body including conductive particles and at least one of semiconductor particles and insulating particles. At least the discharge auxiliary section 51 comprises at least one of an alkaline metal component and a boron component. The content of at least one of the alkaline metal component and the boron component in the discharge auxiliary section 51 is larger than the content of at least one of the alkaline metal component and the boron component in the ceramic insulating material 10.
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