Patent ID: 6861750
Filing Date: 2005-03-01
Classification: H01L

Abstract:
1. A ball grid array (BGA) package, comprising: a first stiffener that has opposing first and second surfaces, wherein said first surface of said first stiffener is capable of receiving mounting an IC die thereon; a second stiffener that has opposing first and second surfaces, and an opening through said second stiffener that is open at said first and said second surfaces of said second stiffener, wherein a peripheral portion of said second surface of said first stiffener is attached to said first surface of said second stiffener to cover said opening at said first surface of said second stiffener; and a substantially planar substrate that has a plurality of contact pads on a first surface of said substrate that are electrically connected through said substrate to a plurality of solder ball pads on a second surface of said substrate, and an opening that is open at said first and said second surfaces of said substrate, wherein said second surface of said second stiffener is attached to said first surface of said substrate, and wherein said opening through said substrate at least partially coincides with said opening through said second stiffener.