Patent ID: 6617201
Filing Date: 2003-09-09
Classification: H01L

Abstract:
A method of forming a molded semiconductor package comprising the acts of:(a) providing a substrate having a first surface, a second surface and an elongated aperture therethrough, the aperture being defined by a first and a second end and a first and a second side; (b) disposing a fluid barrier between the die and the substrate adjacent the first and second side and the second end of the elongated aperture; (c) adhering a die to the second surface of the substrate, the die having an outer perimeter; (d) locating the die in relation to the substrate such that the first end of the aperture is exposed near the outer perimeter of the die allowing fluid communication through the aperture from the first side of the substrate to the second side of the substrate via the exposed portion of the aperture; (e) providing a mold, the mold having an inlet gate at an edge of the mold for introduction of a mold compound; (f) suspending the substrate within the mold wherein the substrate is placed such that the first end of the aperture is farthest from the inlet gate of the mold; and (g) flowing the mold compound into the mold such that it first flows around the die and then flows through the exposed portion of the aperture from the second surface of the substrate to the first surface of the substrate to form an encapsulated package.