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TSMC unveils 1.6nm process technology with backside power delivery

tomshardware.com

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Re: TSMC unveils 1.6nm process technology with backside power delivery

#71

> This technology is tailored specifically for AI and HPC processors that tend to have both complex signal wiring and dense power delivery networks Uh?

As opposed to low power processors (e.g laptops/phones), that tend to have less complex wiring and less dense power delivery networks

Re: TSMC unveils 1.6nm process technology with backside power delivery

#72
post #8

>1.6nm Gotta love how we now have fractions of a near meaningless metric.

Number represents transistor density. 2nm has ~twice the density of 4nm. If you ignore nm as unit of distance it makes sense.

Nope that's what it meant a long time ago. Nowadays, the nm number represents the smallest possible element on the chip, typically the gate length, which is smaller than the size of a transistor.

This means that when different manufacturers use a different transistor design, their 'nm' process could be the same but their transistor density different.

Re: TSMC unveils 1.6nm process technology with backside power delivery

#73
post #46

Earlier quoted context omitted.

You're the one calling it a feature size, not TSMC.

I’m sure you agree that the measurement given is a marketing term and is generally unhelpful beyond ‘it’s smaller than the current number’.

it also seems to be a roughly proportional change in density so why would it be unhelpful?

Just because you can't point to a specific feature and say that is 1.6nm, doesn't make the label meaningless as so many try to assert. It is a label that represents a process that results in a specific transistor density. What label would you prefer?

Re: TSMC unveils 1.6nm process technology with backside power delivery

#74

Sounds like a response to Intel's 18A process [0], which is also coming in 2026. [0] https://www.tomshardware.com/tech-industry/manufacturing/int...

Intel is the one trying to catch up to TSMC, not vice versa!

The link you give doesn't have any details of Intel's 18A process, including no indication of it innovating in any way, as opposed to TSMC with their "backside power delivery" which is going to be critical for power-hungry SOTA AI chips.

Re: TSMC unveils 1.6nm process technology with backside power delivery

#76
post #69

Earlier quoted context omitted.

Intel has a 1.4nm process in the pipeline for ~2027. They just took delivery on their first high NA EUV machine in order to start working on it. Their gamble however is that they need to figure out DSA, a long storied technology that uses self-forming polymers to allow less light to sharply etch smaller features. If they figure out DSA, they will likely be ahead of TSMC. If not, it will just be more very expensive la…

Do you know the name of the company that produces the EUV machine? is it ASML? It is my understanding that only ASML had cracked the EUV litography, but if there's another company out there, that would be an interesting development to watch.

It’s ASML.

Re: TSMC unveils 1.6nm process technology with backside power delivery

#77
post #49

Earlier quoted context omitted.

[flagged]

> I detest ELI5 as it's managerial nonsense. I thought it came from Reddit, which is about as far from ‘managerial’ as one can get.

What is it you think managers do, if not waste all day on reddit?

Re: TSMC unveils 1.6nm process technology with backside power delivery

#78
post #35
post #2

could someone ELi5 the backside power delivery please ?

ELI5: ICs are manufactured on silicon disks called wafers. Discs have two sides, and traditionally, everything was done on top. We can now do power on the bottom. This makes things go faster and use less power: * Power wires are big (and can be a bit crude). The bigger the better. Signal wires are small and precise. Smaller is generally better. * Big wires, if near signal wires, can interfere with them working optima…

There's still the question though of why they didn't do this decades ago - seems very obvious that this layout is better. What changed that made it possible only now and not earlier?

Re: TSMC unveils 1.6nm process technology with backside power delivery

#79

Sounds like a response to Intel's 18A process [0], which is also coming in 2026. [0] https://www.tomshardware.com/tech-industry/manufacturing/int...

Intel is the one trying to catch up to TSMC, not vice versa! The link you give doesn't have any details of Intel's 18A process, including no indication of it innovating in any way, as opposed to TSMC with their "backside power delivery" which is going to be critical for power-hungry SOTA AI chips.

While you are correct that it is Intel trying to catch TSMC, you are wrong about the origin of backside power delivery. The idea originated at Intel sometime ago, but it would be very ironic if TSMC implements it before Intel...

Re: TSMC unveils 1.6nm process technology with backside power delivery

#80
post #66
post #34

Earlier quoted context omitted.

thanks, I've fixed them btw, you appear to be shadow banned, probably on account of being downvoted for making short comments like "good" or "I don't get it" Short & simple responses may be adequate at times, but usually people will view it as not adding anything Perhaps reviewing guidelines https://news.ycombinator.com/newsguidelines.html will give an idea of the ideal being yearned for (granted, it's an ideal). In…

How can you tell someone is shadowbanned?

Their new posts will be dead. You can enable seeing dead posts in settings. Then if you click on their account & view their comments, it'll all be grayed out

I vouched for barfard's comment in this thread

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