Method of injection molded flip chip encapsulation

The electrical interconnections between an integrated circuit chip assembly are encapsulated and reinforced with a high viscosity encapsulant material in a single step molding process wherein a mold is placed over an integrated circuit chip assembly and encapsulant material is dispensed through an opening in the mold and forced around and under the integrated circuit chip by external pressure encapsulating the integrated circuit chip assembly. An integrated circuit chip assembly having a reinforced electrical connection which is more resistant to weakening as a result is stress created by differences in coefficient of thermal expansion between the integrated circuit chip and the substrate to which the integrated circuit chip is attached is produced.