A new method is provided for the interconnection of flip chips to a supporting substrate. The invention starts with a conventional first substrate, that serves as a semiconductor device support structure, over the surface of which a first pattern of contacts points has been provided. The invention then uses a second substrate, for instance a glass or quartz plate, and creates over the surface thereof a second pattern of solder bumps separated by solder non-wettable surfaces. The second pattern is a mirror image of the first pattern. By then overlying the first pattern of contact points with the second pattern of solder bumps, a step of reflow can be applied to the solder bumps, transferring the solder bumps from the second substrate to the contact points provided over the first substrate.