Patent ID: 7608520

Claim:
A method for laminating substrates, comprising: positioning a lower surface of an upper substrate adjacent to an upper surface of a lower substrate such that the upper surface and the lower surface are mutually facing so as to define an air space between the lower surface and the upper surface; after said positioning of the lower surface of the upper substrate adjacent to the upper surface of the lower substrate so as to define the air space, interposing a volatile liquid into the air space between the lower surface of the upper substrate and the upper surface of the lower substrate so as to replace air in the air space and cause an attracting force to arise between the volatile liquid and the upper and lower substrates; and causing a tightly attached state between the upper substrate and the lower substrate by causing the weight of the upper substrate and said attracting force to bring the lower surface of the upper substrate into a contact state with the upper surface of the lower substrate via the volatile liquid, and by allowing evaporation of the volatile liquid between the lower surface and the upper surface, without application of an external pressing force to the upper substrate or the lower substrate.