Patent ID: 6988882

Claim:
A mold for encapsulating and underfilling an integrated circuit chip assembly including an integrated circuit chip mounted on a substrate in a standoff relationship, said mold comprising: a first mold portion having first and second cavities and a channel interconnecting said first and second cavities, said first cavity being adapted for enclosing said integrated circuit chip on said substrate; a second mold portion; said first and second mold portions being adapted to clamp the substrate between the first and second portions with the integrated circuit chip located within said first cavity; a vent for exhausting air from said first cavity; and injecting structure for injecting encapsulant into said first cavity of said first mold portion at two spaced locations in said first portion remote from the point of connection of said channel to said first cavity generally in the direction toward said channel, such that encapsulant flows around and underneath said integrated circuit chip and through said channel into said second cavity to thereby underfill and encapsulate said integrated circuit assembly.