Abstract:
Embodiments of a microelectronic assembly comprise a package substrate, including: a first layer comprising a first plurality of mutually parallel channels of a first material; a second layer comprising columns of the first material; and a third layer comprising a second plurality of mutually parallel channels of the first material. The second layer is between the first layer and the third layer, at least some columns extend between and contact the first plurality of mutually parallel channels and the second plurality of mutually parallel channels, and at least a portion of the first layer, the second layer, and the third layer comprises a second material different from the first material.
Abstract:
Embodiments of the present description include stacked microelectronic dice embedded in a microelectronic substrate and methods of fabricating the same. In one embodiment, at least one first microelectronic die is attached to a second microelectronic die, wherein an underfill material is provided between the second microelectronic die and the at least one first microelectronic die. The microelectronic substrate is then formed by laminating the first microelectronic die and the second microelectronic die in a substrate material.