Globalfoundries extends 22nm FDSOI; next node will wait

September 24, 2020 //By Peter Clarke
Globalfoundries extends 22nm FDSOI; next node will wait
Globalfoundries has announced it has extended its 22FDX manufacturing processes based around the 22nm FDSOI but that its12nm 12FDX process will not be in production until 2023 or 2024.

Back in 2016 Globalfoundries was planning for customer tape-outs on 12FDX in the first half of 2019 (see Globalfoundries preps 12nm FDSOI process).

Meanwhile the 22FDX platform has been in production since 2017/2018 with the inclusion of MRAM as an embedded non-volatile memory option. More than 350 million chips have been shipped and generated more than $4.5 billion in revenue.

FDSOI, or fully-depleted silicon-on-insulator, is alternative manufacturing option to the FinFET beyond bulk CMOS at 28nm, that brings a number of advantages. The buried oxide layer reduces parasitic capacitance, which improves power consumption and allows for back-biasing to actively trade off power consumption and performance. It can also reduce temperature dependency due to less doping and allows high density circuitry and better wafer utilization. This can bring a number of advantages in mixed-signal and RF circuits, an area where Globalfoundries has been concentrating.

Globalfoundries has also enjoyed success with its 45nm RFSOI manufacturing process (see CEO interview: The joy of RFSOI with MixComm's Mike Noonen).

At its virtual Global Technology Conference on September 24 Globalfoundries announced 22FDX+ with a broader set of features and options to address IoT, 5G, automotive and satellite communications applications.

The first specialty solution within 22FDX+ will be 22FDX RF+, the company said. With both digital and RF enhancements, the new 22FDX RF+ solution is optimized to boost the performance of front-end-module (FEM) designs. The 22FDX RF+ specialty solution will be available in 1Q21, and manufactured at Globalfoundries Fab 1 in Dresden, Germany.

Cadence Design Systems Inc. also announced the availability of a mixed-signal OpenAccess process design kit (PDK) that supports 22FDX platform. The PDK enables Cadence's digital, custom and RF design tools to work with the 22FDX platform supporting 5G mmWave, edge artificial intelligence (AI), IoT and automotive application design.

When asked about any implications for the next node version of FDX – 12FDX – Bami Bastani, senior vice president of general manager of the mobile and wireless business unit at Globalfoundries said: "The 12FDX program is alive and well. It has a lot in common with our 12nm FinFET process so we are about 60 percent done. We are optimizing the process." Bastani added that Globalfoundries expects to be in production on 12FDX in 2023 or 2024.

Tom Caulfield, CEO of Globalfoundries, commented: "We are not a slave to device sizes. We are application focused. We offer what applications need such as embedded memory. 12nm will come not because it is 12nm but because it can add features that only we can supply."

Related links and article:

News articles:

Globalfoundries preps 12nm FDSOI process

Globalfoundries offers embedded MRAM on 22nm FDSOI

GloFo 45nm RFSOI process ready for 5G

CEO interview: The joy of RFSOI with MixComm's Mike Noonen

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