Patent ID: 8425715

Claim:
A multi-pair wafer bonder apparatus comprising: a wafer bonder chamber extending along a main axis and comprising a plurality of chamber zones, a plurality of heater/isolator plates, a guide rod system extending along said main axis, a pair of parallel track rods extending along said main axis, and first pressure means; wherein said plurality of chamber zones are separated from each other and thermally isolated from each other by said plurality of heater/isolator plates; wherein said plurality of heater/isolator plates are oriented perpendicular to said main axis, are movably supported and guided by said guide rod system and are configured to move along the direction of said main axis; wherein each of said plurality of chamber zones is dimensioned to accommodate an aligned wafer pair and wherein said wafer pairs are configured to be supported by said parallel track rods; and wherein said first pressure means is configured to apply a first force perpendicular to a first end heater/isolator plate and wherein said applied first force causes the plurality of heater/isolator plates to move toward each other along said main axis and thereby causes the collapse of each chamber zone volume and the application of bonding pressure onto said wafer pairs.