Patent ID: 11916038
Assignee: CANON ANELVA CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B  C | IPC C  H

Claim 18:
19. A chemical bonding method comprising:
a step of forming a bonding film, which is a thin film of a metal or semiconductor formed by vacuum deposition involving rapid cooling of raw material atoms on base materials, and having many defects and hydrophilicity, and oxidized at least on its surface, on one of the smooth surfaces of two of the base materials having smooth surfaces;
a step of exposing the surface of the bonding films to a space having moisture to hydrophilize the surfaces of the bonding films by which moisture is adsorbed to the surfaces of the bonding films; and
a step of bonding the two base materials by overlaying them so that the surface of the bonding film in a hydrophilic state contacts the smooth surface of the other base material, which comprises a hydrophilized or activated metal or semiconductor, or an oxide thereof.