TSMC unveils 1.6nm process technology with backside power delivery

elorant | 398 points

Comments about the marketing driven nm measurements aside, this still looks like another solid advance for TSMC. They are already significantly ahead of Samsung and Intel on transistor density. TSMC is at 197 MTr/mm2 wile Samsung is at 150 MTr/mm2 and Intel is at 123 MTr/mm2. This 1.6nm process will put them around 230 MTr/mm2 by 2026. When viewed by this metric, Intel is really falling behind.

futureshock | 14 days ago

>1.6nm

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

Havoc | 14 days ago

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...

654wak654 | 14 days ago

It seems the actually impressive thing here is the 15-20% less power consumption at same n2 complexity/speed.

sylware | 14 days ago

The "Hollywood accounting" transistor density aside, I think a new metric needs to become mainstream: "wafers per machine per day" and "machines per year manufactured".

Getting these machines built and online is more important than what one machine (that might be less than 6 per year) can do.

The information, I'm sure, is buried in their papers, but I want to know what node processes are in products available now.

gosub100 | 13 days ago

could someone ELi5 the backside power delivery please ?

tvbv | 14 days ago

I am not sure I understand backside in this instance and the illustration in the article didn't entirely help.

In general, at least in older time, one side of the CPU has all the nice pins on it, and the motherboard has a pincushion that the pins match nicely. At the top of the CPU you put a HUGE heatsink on it and off you go.

In this configuration the power delivery must be via the pincushion, through some of the pins.

Intuitively that sounds to me like the power is coming in the backside? But given that it is a big deal I am missing something.

Is the power fed from the "top" of the cpu where the heatsink would sit?

ThinkBeat | 13 days ago

A16 in 2027 vs Intel's 18A in full swing by 2026 feels like a miss on TMSCs behalf. This looks like an open door for fabless companies to try Intel's foundry service.

tgtweak | 14 days ago

if people find the topic interesting, I recommend the book "Chip War" [1]

It's a great read. very dense in narrative facts.

[1] https://www.amazon.com.au/gp/aw/d/1398504122/ref=ox_sc_act_i...

drekipus | 13 days ago

Available in Apple products this Christmas, everybody else's in the back half of the decade, maybe.

bitwize | 13 days ago

I love that they're using the back side now. It reminds me of finally using the back of a PCB.

RecycledEle | 13 days ago

So much for physical limitations, it seems you can keep halving smaller till infinity.

m3kw9 | 14 days ago

[dead]

zzz999 | 14 days ago

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

Uh?

gtirloni | 14 days ago