US 11,855,056 B1
Low cost solution for 2.5D and 3D packaging using USR chiplets
Mohsen F. Rad, Las Vegas, NV (US)
Assigned to Eliyan Corporation, Santa Clara, CA (US)
Filed by NuConcepts Holdings LLC, Las Vegas, NV (US)
Filed on Mar. 6, 2020, as Appl. No. 16/812,234.
Claims priority of provisional application 62/941,461, filed on Nov. 27, 2019.
Claims priority of provisional application 62/818,752, filed on Mar. 15, 2019.
Int. Cl. H01L 23/538 (2006.01); H01L 25/18 (2023.01); H01L 23/00 (2006.01)
CPC H01L 25/18 (2013.01) [H01L 23/5384 (2013.01); H01L 24/06 (2013.01); H01L 24/14 (2013.01); H01L 24/20 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system in a package, comprising:
a first integrated circuit (IC) chip comprising:
a first data interface comprising a first set of M×N input/output (I/O) pads of a first pad pitch, wherein M and N are positive integers, the first data interface configured to transfer first data in a first data stream; and
an ultra short reach (USR) IC chip coupled to the first IC chip via multiple parallel links, the USR IC chip comprising:
a second data interface comprising a second set of M×N I/O pads, the second set of M×N I/O pads coupled to the first set of M×N I/O pads through the multiple parallel links to communicate the first data stream with the first IC chip;
a third data interface comprising a third set of N I/O pads of a second pad pitch that is greater than the first pad pitch and configured to carry a second data stream of the first data, wherein each of the N I/O pads is configured to operate at a first data rate that is M times higher than a second data rate associated with the second set of M×N I/O pads; and
multiplexer/de-multiplexer circuitry disposed between the second data interface and the third data interface, wherein
the multiplexer/de-multiplexer circuitry is configured to multiplex at least a first portion of the first data stream into a first portion of the second data stream, and to de-multiplex at least a second portion of the second data stream into a second portion of the first data stream.