Patent ID: 8046910

Claim:
A method of manufacturing a surface mounted crystal device, the method comprising the steps of: providing an aggregated sheet material in which a plurality of container main bodies having concavities are provided lengthwise and crosswise, accommodating at least a crystal piece inside said concavities of the plurality of container main bodies formed in said aggregated sheet material; providing annular grooves on outer perimeters between said container main bodies of said aggregated sheet material; positioning an outer peripheral edge of an inclined face of an electrode roller of a seam welder inside said annular groove; abutting said inclined face against a metal cover tacked to said container main body; bonding said metal cover directly to said aggregated sheet material on an aperture end face of said container main body, by seam welding using the electrode roller positioned inside said annular groove; and parting said aggregated sheet material into individual container main bodies.