Patent ID: 8388781

Claim:
An apparatus for attaching substrates, comprising: a main frame; a first chamber mounted on the main frame, wherein the first chamber holds a first substrate; a second chamber mounted on the main frame, wherein the second chamber holds a second substrate, and wherein the first and second chambers can be brought together to form a sealed attaching space therebetween; and an alignment control device located between the first and second chambers, wherein the alignment control device comprises: a body located between the first and second chambers and having a first side thereof facing the first chamber and a second side thereof facing the second chamber; a fixation device that extends through an installing hole in the body and into a fixation hole in the second chamber so as to movably couple the body to the second chamber such that the body is slideable relative to the second chamber while the fixation device remains fixed in the fixation hole in the second chamber; a main seal provided between the first side of the body and the first chamber; and an auxiliary seal provided between the second side of the body and the second chamber, wherein the fixation device provides close contact of the auxiliary seal with the body and the second chamber.