Patent ID: 6383846
Filing Date: 2002-05-07
Classification: H01L

Abstract:
A method for molding a flip chip semiconductor device, comprising the steps of:providing a substrate (20) having at least one air hole (24); mounting a chip (23) on said substrate (20) by multiple solder balls (220) such that said at least one air hole (24) is beneath said chip (23) and surrounded by said multiple solder balls (230); and placing said substrate (20) mounted with said chip (23) in a mold apparatus (10) that has a lower mold body (12) defined with at least one air channel (13) aligning with said at least one hole (24), such that air can be exhausted via said at least one air hole (24) and said at least one channel (13) when encapsulation material is filling said mold apparatus (10).