Electron device with ring-less getter, method for affixing ring-less getter, and method for activating the same

A method for activating a ring-less getter, comprising the steps of:

• disposing a ring-less getter on a glass substrate in an electron device;
• wherein a surface of said ring-less getter is in direct contact with said glass substrate;
• irradiating an optical energy onto said ring-less getter from a surface of said glass substrate, opposite to a surface of said glass substrate on which said ring-less getter is disposed;
• fusing the contacting surfaces of said ring-less getter and glass substrate by said optical energy;
• bonding said ring-less getter on said glass substrate by cooling the fused contacting surfaces of said ring-less getter and glass substrate;
• and
• irradiating an optical energy on a surface of said ring-less getter opposing the fused contacting surfaces to activate said ring-less getter.

An electron device comprising:

• a hermetic container formed with a glass substrate;
• and
• a ring-less getter disposed in said hermetic container;
• wherein a surface of said ring-less getter is in direct contact with said glass substrate;
• said ring-less getter being fused onto said glass substrate by irradiating a laser beam on the contacting surfaces of said ring-less getter and said glass substrate from a surface of said glass substrate opposite to the surface of said glass substrate on which said ring-less getter is disposed.