Patent ID: 8906175

Claim:
A room temperature bonding apparatus comprising: a load lock chamber provided with a cartridge having a substrate put thereon and having an internal space which is pressure-reduced; a bonding chamber comprising a lower-side stage, and an upper-side stage and a bonding mechanism, wherein said upper-side stage holds another substrate; and a conveyer unit which conveys said cartridge having said substrate from said load lock chamber to said lower-side stage in said bonding chamber, when said bonding chamber is in a pressure-reduced state, such that said bonding mechanism bonds said substrate and said another substrate in said bonding chamber through a pressure welding process, wherein said cartridge comprises a plurality of island portions and a flow passage extending between said plurality of island portions, each island portion having a flat surface, such that the plurality of island portions makes contact with substantially an entire surface of one side of said substrate when said substrate is put on said cartridge, and wherein the flow passage connects a space between said cartridge and said substrate to an outside of said space when said substrate is put on said cartridge.