When GlobalFoundries claims 2X 'digital performance' comparable to that of 7nm-class technologies, it doesn't reveal whether it means transistor switching speed, standard cell performance, achievable operating frequency, or something else. In addition, the company promises more than twice the logic density of its first-generation FDX technology, although the firm does not reveal any actual numbers. Consequently, it is unclear how FDX Fusion will compare with established 7nm-class FinFET technologies, which offer mature defect density and yields, plenty of supply, an established design ecosystem, and predictable pricing among other things, in terms of transistor density, performance, power consumption, and production costs. While CEA-Leti's comment seems promising, actual numbers are always better.
The very fact that GF's FDX Fusion planned 2028 introduction will come roughly nine years after the originally anticipated first 12FDX tape-outs illustrates significant technological and/or financial difficulties associated with the development of FD-SOI beyond the 22nm generation. So, while GlobalFoundries' FDX Fusion initiative certainly looks promising, it remains to be seen how that is going to play out for the contract chipmaker and its clients.
For now, the lineup of supporters from the automotive and industrial sectors — BMW, Bosch, Infineon, NXP, Siemens, and Tesla — certainly looks promising. But what about other applications? While established semiconductor companies such as Infineon and NXP already possess extensive processor IP portfolios, smaller fabless developers could benefit from GF’s MIPS and ARC processor cores, RISC-V expertise, and custom chip design capabilities, which could substantially reduce the cost and complexity of developing specialized SoCs. Still, to attract a broader range of chip developers, GlobalFoundries will need a mature ecosystem of EDA tools, standard-cell libraries, memory compilers, interface IP, and other silicon-proven building blocks. These are the things that GlobalFoundries has not touched upon in its press release.
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Anton Shilov Social Links Navigation Contributing Writer Anton Shilov is a contributing writer at Tom’s Hardware. Over the past couple of decades, he has covered everything from CPUs and GPUs to supercomputers and from modern process technologies and latest fab tools to high-tech industry trends.
bit_user It's nice to see they're getting the ball rolling on process improvements, at least. I hope it won't be nearly as long before their next node introduction. Reply
thestryker As far as I'm aware they haven't acquired any EUV machines so it's probably a safe bet that the node won't match existing "7nm" nodes. I believe all of the nodes on the market with similar application are based on 20nm or higher original nodes though so there's definitely a lot of room for improvement. Given that their aborted "12" node was based on their 14nm process it has always made me wonder if there was something simply unsuitable which would require a purpose built node. It definitely sounds like this forthcoming node isn't going to be built directly off of anything existing. Reply
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Reference reading
- https://www.tomshardware.com/tech-industry/semiconductors/SPONSORED_LINK_URL
- https://www.tomshardware.com/tech-industry/semiconductors/globalfoundries-unveils-7nm-class-fdx-fusion-node-fd-soi-node-doubles-22fdx-transistor-density-comes-7-years-after-firm-abandoned-finfet#main
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