Ngk Spark Plug Company, Limited

Jun Suzuki

Hiroaki Yamamoto

Naoki Kito

Kazushige Akita

Yoshitaka Yoshida

Takatoshi Tojo

A ceramic package includes a package main body which is formed of a ceramic material, which has a front surface and a back surface having a rectangular shape in plan view, and which has a cavity opening toward the front surface; a first metalized layer which has a frame shape in plan view and is formed on the front surface; and a second metalized layer which is formed on the front surface of the first metalized layer so as to assume a frame shape, and which has a width smaller than the width of the first metalized layer, wherein the width of the second metalized layer at each corner portion of the front surface in plan view is smaller than the width of the second metalized layer in a region other than the corner portion in plan view.

Growing community of inventors

Nagoya, Japan

Jun Suzuki