Gas sensor, and air-fuel ratio controller and transportation apparatus incorporating the same

摘要

A gas sensor according to the present invention includes: a sensor element having a gas detection layer for detecting a predetermined gas; a lead for allowing electrical input/output to occur between the sensor element and the exterior; a terminal for electrically connecting the sensor element to the lead; and a bonding portion for connecting the terminal to the sensor element. The bonding portion contains a glass material and a metal material which has a melting point of 1000°C or above.