Interposer
An interposer is an electrical interface routing between one socket or connection to another. The purpose of an interposer is to spread a connection to a wider pitch or to reroute a connection to a different connection.[1]
Interposer comes from the Latin word "interpōnere", meaning "to put between".[2] They are often used in BGA packages, multi-chip modules and high bandwidth memory.[3]
A common example of an interposer is an
NoC technology which combines small dies ("chiplets"), fabricated at the FDSOI 28 nm node, on a 65 nm CMOS interposer.[10]
Another example of an interposer would be the adapter used to plug a
SAS backplane with redundant ports. While SAS drives have two ports that can be used to connect to redundant paths or storage controllers, SATA drives only have a single port. Directly, they can only connect to a single controller or path. SATA drives can be connected to nearly all SAS backplanes without adapters, but using an interposer with a port switching logic allows providing path redundancy.[11]
See also
- Die preparation
- Integrated circuit
- Semiconductor fabrication
References
- ^ a b Package Substrates/Interposers
- ^ interposes - definition of interposes by the Free Online Dictionary, Thesaurus and Encyclopedia
- ^ "2.5D".
- ^ Silicon interposers: building blocks for 3D-ICs Archived 2018-01-30 at the Wayback Machine / ElectroIQ, 2011
- ^ 2.5D Interposers; Organics vs. Silicon vs. Glass Archived 2015-10-10 at the Wayback Machine / Rao R. Tummala, ChipScaleReview Volume 13, Number 4, July–August 2013, pages 18-19
- ISBN 978-0-7918-4461-8.
- ^ "SEMICON Singapore 3D IC Wrap-Up: Bring down the cost and bring out the TSV alternatives - 3D InCites". 3D InCites. 2013-05-22. Retrieved 2017-08-21.
- ^ "The AMD Radeon R9 Fury X Review: Aiming For the Top". Retrieved 2017-08-17.
- ^ "White Paper: Virtex-7 FPGAs" (PDF).
- ^ "Leti Unveils New 3D Network-on-Chip | EE Times". EETimes. Archived from the original on 2016-07-15. Retrieved 2017-08-17.
- ^ Willis Whittington (2007). "Desktop, Nearline & Enterprise Disk Drives" (PDF). Storage Networking Industry Association (SNIA). p. 17. Retrieved 2014-09-22.