Patent ID: 8084296
Filing Date: 2011-12-27
Classification: H01L

Abstract:
1. A method for reducing stress in a packaged microelectronic device, the method comprising: providing a first support member having a first side, a second side opposite the first side, a plurality of support member terminals proximate the first side, and a plurality of contact pads proximate the second side; providing a microelectronic die having an active side, a back side opposite the active side, and a plurality of terminals proximate the active side; providing a second support member having a generally uniform thickness throughout; attaching the die to the first side of the first support member; attaching the second support member to the die opposite a side of the die that is attached to the first support member, wherein the second support member at least approximately completely covers the side of the die opposite the side attached to the first support member, and wherein the die is out of electrical contact with the second support member; and disposing a fill material between the first support member and the second support member to at least partially encapsulate the die, wherein the second support member has structural material characteristics that are closer to those of the first support member than to the structural material characteristics of the fill material.