Patent ID: 9659812
Date: 2017-05-23
CPC Classifications: H01L,Y10T

Claim:
1. A method of fabricating a microelectronic unit, comprising: placing a microelectronic element having a top surface and a bottom surface remote from the top surface, and a plurality of contacts at the top surface into a recess of a carrier structure having a front surface and a rear surface remote from the front surface, the carrier structure including at least one of semiconductor material or glass, and electrically interconnecting the contacts with terminals of the carrier structure, the top or bottom surface of the microelectronic element being placed adjacent an inner surface of the carrier structure within the recess, the microelectronic element having edge surfaces adjacent lateral edge surfaces of the recess; applying a dielectric region to the recess, the dielectric region contacting at least the top surface and the edge surfaces of the microelectronic element and extending between the lateral edge surfaces of the recess and the edge surfaces of the microelectronic element; planarizing the dielectric region to define a planar surface located coplanar with or above the front surface of the carrier structure; and forming a plurality of conductive vias extending from the planar surface through the dielectric region between the lateral edge surfaces of the recess and the edge surfaces of the microelectronic element to the rear surface.