The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 21, 2016
Filed:
Jul. 16, 2014
Murata Manufacturing Co., Ltd., Kyoto, JP;
Takahiro Sumi, Kyoto, JP;
Kumiko Ishikawa, Kyoto, JP;
Jun Adachi, Kyoto, JP;
Takayuki Tsukizawa, Kyoto, JP;
MURATA MANUFACTURING CO., LTD., Kyoto-Fu, JP;
Abstract
Provided is an ESD protection device having excellent discharge characteristics at a low applied voltage. An ESD protection device includes a first discharge electrode and a second discharge electrode that are disposed so as to face each other, a discharge auxiliary electrode formed so as to span between the first discharge electrode and the second discharge electrode, and an insulator base that holds the first discharge electrode, the second discharge electrode, and the discharge auxiliary electrode. The discharge auxiliary electrode includes a plurality of metal particles () containing a first metal as a main component. Fine irregularities are formed on the surfaces of the metal particles (). More specifically, the metal particles () has a fractal dimension D of 1.03 or more. Since electric charges are concentrated on the fine irregularities, discharge can be generated in the discharge auxiliary electrode by applying a relatively low voltage.