Patent ID: 9257368
Filing Date: 2016-02-09
CPC Classification: H01L

Claim Text:
1. A microelectronic package, comprising: a microelectronic device having an active surface and an opposing back surface, and at least one through-silicon via extending into the microelectronic device from the microelectronic device back surface; a first bumpless build-up layer structure formed adjacent the active surface and at least one side of the microelectronic device, wherein the first bumpless build-up layer structure includes a first surface extending over the microelectronic device active surface and a second surface substantially planar to the microelectronic device back surface; a second bumpless build-up layer structure abutting the microelectronic device back surface and abutting the first bumpless build-up layer structure second surface; at least one first package conductive route extending through the first bumpless build-up layer structure, extending through the second bumpless build-up layer structure, and electrically connected to the microelectronic device active surface; and at least one second package conductive route extending through second bumpless build-up layer structure and electrically connected to at least one microelectronic device through-silicon via.