Murata Manufacturing Co., Ltd.

Takahiro Kitadume

Jun Adachi

Takahiro Sumi

Takayuki Tsukizawa

Jun Urakawa

Masanori Okamoto

An ESD protection device includes a ceramic base material, a pair of opposed electrodes provided on a surface of or in the ceramic base material, and a discharge auxiliary electrode film arranged to connect the pair of opposed electrodes, wherein the discharge auxiliary electrode film is composed of a material containing, as its main constituents, metallic particles and glass covering the metallic particles. The discharge auxiliary electrode film is formed by providing an electrode paste containing glass-coated metallic particles that have an approximately 15% rate of increase in weight at about 400&#xb0; C. for about 2 hours in air, a resin binder, and a solvent so as to connect the pair of opposed electrodes to each other, and then firing at a temperature of about 600&#xb0; C. or more, higher than a softening point of glass of the glass-coated metallic particles, and not +200&#xb0; C. higher than the softening point.

ESD protection device and manufacturing method thereof

An ESD protection device includes a ceramic multilayer substrate, at least one pair of discharge electrodes provided in the ceramic multilayer substrate and facing each other with a space formed therebetween, external electrodes provided on a surface of the ceramic multilayer substrate and connected to the discharge electrodes. The ESD protection device includes a supporting electrode obtained by dispersing a metal material and a semiconductor material and being arranged in a region that connects the pair of discharge electrodes to each other.

Growing community of inventors

Nagaokakyo, Japan

Takahiro Kitadume