Patent ID: 9129978
Filing Date: 2015-09-08
Classification: H01L

Abstract:
1. A method of manufacture of an integrated circuit packaging system comprising: providing a mold chase having an air vent; providing a singulation substrate having an air vent portion, a dielectric layer, and metallic blocks embedded in the dielectric layer; forming longitudinal grooves in the air vent portion of the singulation substrate, the longitudinal grooves all parallel to each other and oriented parallel to an air flow direction out of the mold chase; forming transverse grooves in the air vent portion and across the longitudinal grooves, the transverse grooves oriented perpendicular to the longitudinal grooves, the longitudinal grooves and the transverse grooves partially overlapping the metallic blocks; positioning the air vent portion of the singulation substrate within the air vent of the mold chase; attaching an integrated circuit die to the singulation substrate; and flowing a molding compound on the singulation substrate and the integrated circuit die, the molding compound flowing over the air vent portion of the singulation substrate and into a portion of the longitudinal grooves, the molding compound pushing air out of the mold chase in the air flow direction through the longitudinal grooves.