Patent ID: 7866364
Filing Date: 2011-01-11
Classification: H01L

Abstract:
1. A fabrication tool to press a first device surface against a second device surface, to bond the first device surface with the second device surface, the fabrication tool comprising: a bonding piston to exert force on the first device surface to press the first device surface against the second device surface; and, a pressure plate situated between the bonding piston and the first device surface; and, a mechanism to ensure that the force exerted by the bonding piston on the first device surface via the pressure plate is initially exerted at one or more first locations on the first device surface and subsequently exerted at one or more second locations on the first device surface, wherein the mechanism comprises: and wherein second contact is made with the first device surface at the second locations thereof by the profiled insert so that the force is subsequently exerted at the second locations thereof.