Patent ID: 6673189
Filing Date: 2004-01-06
Classification: H01L

Abstract:
A method for producing a releasable bond being stable at high temperatures and being mechanically stable, which comprises the steps of:placing two wafers to be bonded one on top of another such that a surface of a first wafer is disposed on a surface of a second wafer, resulting in a creation of interspaces between the two wafers, the interspaces at least partially connecting the surface of the first wafer to the surface of the second wafer; introducing a liquid glass compound into the interspaces forming a liquid glass film wetting inner surfaces of the interspaces, in which process, voids connected to an atmosphere surrounding the two wafers remain inside the interspaces wetted with the liquid glass compound; and subjecting the two wafers lying one on top of the other to a temperature treatment to transform the liquid glass film into a solid silicon dioxide film, thereby forming a releasable bond being mechanically stable and stable at high temperatures.