Patent ID: 7160757

Claim:
A method of forming an electronic assembly, comprising: forming first solder bumps on a package substrate; forming a gap control structure on the package substrate, the gap control structure being spaced apart from the first solder bumps; positioning an interposer on the first solder bumps and on the gap control structure; applying heat to reflow the first solder bumps and to cure the gap control structure, wherein the reflowed first solder bumps are coupled to the package substrate and the interposer, and wherein the gap control structure is positioned between the package substrate and the interposer; forming second solder bumps on a die; positioning the die having the second solder bumps on the interposer so that the interposer is positioned between the die and the package substrate; and applying heat to reflow the second solder bumps on the die, wherein the reflowed second solder bumps are coupled to the interposer and the die.