Patent ID: 7126210
Filing Date: 2006-10-24
Classification: H01L,H05K,Y02P

Abstract:
1. An integrated circuit comprising: a substrate having an opening therethrough; at least one metal layer on said substrate having portions that form a plurality of electrical conductors; an integrated circuit die mounted within said opening through said substrate and electrically connected to said plurality of electrical conductors of said at least one metal layer; a solder mask deposited over portions of said at least one metal layer, wherein said solder mask is formed defining a plurality of solder mask vents around said opening; and a lid covering said opening through said substrate and soldered to portions of said at least one metal layer around said opening; wherein said plurality of solder mask vents result in a plurality of vapor pressure vents through a solder material and into a cavity between at least part of the integrated circuit die and said lid after said solder material is used to solder said lid to said portions of said at least one metal layer, the vapor pressure vents preventing an increase in vapor pressure in the cavity in the integrated circuit during a surface mount process where the integrated circuit is mounted onto a circuit board.