| abstract |
The present invention, which is provided, can reduce the Esd protection device of discharge ionization voltage.Esd protection device (1) includes ceramic multi-layer baseplate (2) and is arranged on some height and position of ceramic multi-layer baseplate (2) to cause first, second sparking electrode (4,5) of front end (4a, 5a) toward each other, and comprising metal and at the temperature at which being burnt till to obtain ceramic multi-layer baseplate (2), contraction of the shrinkage factor less than the metal suppresses material to first, second sparking electrode (4,5). |