Production method null of shi - ruringu for IC seramitsukupatsuke - ji

摘要

PURPOSE:To manufacture a sealing ring having high flatness by coating one surface of the ring with silver brazing paste, and then heating it in a furnace made of nonoxidative atmosphere to form a silver brazing layer. CONSTITUTION:One surface of a sealing ring body is coated with silver brazing paste made of Ag-Cu alloy, it is then heated in a furnace made of nonoxidative atmosphere to form the paste in a semimelted state, the paste is eventually solidified to form a silver brazing layer on the ring. Thus, it prevents a warpage and a wave from occurring, and the ring with the silver brazing layer having excellent flatness can be manufactured.