A method of bonding includes using a bonding layer having a fluorinated
oxide. Fluorine may be introduced into the bonding layer by exposure to a
fluorine-containing solution, vapor or gas or by implantation. The
bonding layer may also be formed using a method where fluorine is
introduced into the layer during its formation. The surface of the
bonding layer is terminated with a desired species, preferably an
NH.sub.2 species. This may be accomplished by exposing the bonding layer
to an NH.sub.4OH solution. High bonding strength is obtained at room
temperature. The method may also include bonding two bonding layers
together and creating a fluorine distribution having a peak in the
vicinity of the interface between the bonding layers. One of the bonding
layers may include two oxide layers formed on each other. The fluorine
concentration may also have a second peak at the interface between the
two oxide layers.