Patent ID: 7185434

Claim:
A heat sink vacuum packaging procedure comprising the steps in series of: (a) delivering a heat sink upper cover and a heat sink bottom cover to a vacuum chamber, said heat sink upper cover having a coupling flange extended around the periphery thereof, said heat sink bottom cover having a coupling flange extended around the periphery thereof; (b) filling pure water in said heat sink upper cover and said heat sink bottom cover; (c) turning said heat sink upper cover and then closing said heat sink upper cover on said heat sink bottom cover for enabling the coupling flange of said heat sink upper cover to be covered on the coupling flange of said heat sink bottom cover; (d) operating a first ramming roller to ram the coupling flange of said heat sink upper cover at an anvil and to deform the coupling flange of said heat sink upper cover, causing the coupling flange of said heat sink upper cover to be preliminary curved and to hook the coupling flange of said heat sink bottom cover; (e) operating a second ramming roller to ram the coupling flange of said heat sink upper cover and the coupling flange of said heat sink bottom cover at said anvil, and to deform the coupling flange of said heat sink upper cover and the coupling flange of said heat sink bottom cover, thereby causing the coupling flange of said heat sink upper cover to be sealed tightly to the coupling flange of said heat sink bottom cover; and (f) delivering the packaged heat sink upper cover and heat sink bottom cover out of said vacuum chamber.