Patent ID: 8904627

Claim:
A method for sealing a package comprising: connecting a package and a lid by disposing a reception section receiving alkali metal atom within the package having an opening, providing a tubular member having a first through-hole between the package and the lid covering the opening, one end of the tubular member protruding to the outside, providing a first sealing member between the tubular member and the package or the lid, and providing a second sealing member having a second through-hole between the package and the lid; circulating a coating agent by connecting fluid machinery to the one end of the tubular member to control circulation of fluid, introducing the coating agent into the inner face of the package via the second through-hole using the fluid machinery, forming film on the inner face of the package using the coating agent, and exhausting the coating agent provided in the inside of the package to the outside via the second through-hole using the fluid machinery; sealing a gap between the package and the lid formed when the tubular member is extracted by extracting the tubular member and melting the first sealing member, and sealing the second through-hole by melting the second sealing member; and destroying the reception section by applying a laser beam to the reception section.