Live data from Hacker News

Britain buys semiconductor factory for defence purposes

ukdefencejournal.org.uk

91–100 of 119 posts

Re: Britain buys semiconductor factory for defence purposes

#91
post #47
post #45

Earlier quoted context omitted.

So they would start a war and kill people for economy's sake? In this case what make them any different from any other war criminals?

Ya just don’t buy EU or UK would start ww3. There are much smarter and better economics and influence strategies to play out that are much less bloody to its own population.

It may not make WW status and they might not be directly involved in fighting it

Re: Britain buys semiconductor factory for defence purposes

#92

Seems like it was previously owned by Coherent, like some kind of III-V (specifically GaAs mentioned) photonics processes there in the past. This kind of technology is typically quite useful for lasers, LEDs, or potentially image sensors as well. Many LIDAR sensors and even light sources can notably depend on III-V semiconductor sensors. Also widely used by the telecom industry. Outside photonics definitely useful fo…

They were closing because their major contract had been with Apple for FaceID components https://www.euronews.com/business/2024/05/27/apple-changes-l...

Re: Britain buys semiconductor factory for defence purposes

#93
post #35

Why gallium arsenide? It's quite fussy. "This facility is the only secure site in the UK capable of manufacturing gallium arsenide semiconductors, a vital component in military platforms such as fighter jets."

It's much more effective at extremely high frequencies used in compact radars, like the kind used on fighter jets. https://en.wikipedia.org/wiki/Gallium_arsenide#GaAs_advantag...

There was a whole Byte magazine dedicated to it back in the day. It was thought (at the time) that the only way we'd ever break the 1 GHz barrier was to use GaAs, which obviously turned out to be wrong.

Re: Britain buys semiconductor factory for defence purposes

#94
post #9

Earlier quoted context omitted.

I'd love to know more about what you mean by that -- is it that the North East of England (which this factory is certainly in, it being in County Durham) is not the same as the North East of the UK (which I guess would be Aberdeen)? Or is there more to it than that?

That’s pretty much it. If you visit somewhere like r/CasualUK you will get people talking about “up north” and “being a proud northerner” and such like. They are all English people talking about England. Which is fine, but it’s supposed to be a UK subreddit. Even when foreigners are asking about travel advice. Must confuse the hell out of them. Or maybe some foreigners think that England = UK anyway so it all balance…

In the same way that England isn't the UK, reddit isn't HN.

If you want to complain about a subreddit, go there.

Re: Britain buys semiconductor factory for defence purposes

#95
post #23

what a load of crap 'With global semiconductor demand rising, this move positions the UK to meet future technological needs, including advancements in artificial intelligence, quantum technologies, and 6G'? advancements in artificial intelligence depend on mass production of 4nm silicon cmos, not 100 people doing gallium arsenide for high-speed analog. 'quantum technologies' is vague enough to not be literally a lie…

Always pivot to Ai.

Re: Britain buys semiconductor factory for defence purposes

#96
post #73

Earlier quoted context omitted.

It's a UK website. In common parlance in the UK, they are interchangeable.

I live in the UK. In my experience only English people think they are interchangeable since they use it a lot implicitly.

I also live in the UK. I mean, sure I agree with you, but that doesn't stop it being common parlance.

Re: Britain buys semiconductor factory for defence purposes

#97
post #27

Earlier quoted context omitted.

sure, photonics could make sense. what do you mean by 'quantum sensors'? are there any sensors which are not quantum?

In the sense in that literally everything in the world is quantum, sure. But no, I mean sensors which derive their input channel from explicitly quantum effects. Gravometers, magnometers, atomic clocks, etc. are often quantum sensors.

possibly you meant 'gravimeters'; a gravometer is evidently a 19th-century density measurement instrument. plenty of gravimeters are as purely classical as anything electrical is, and those that prominently feature quantum effects are superconducting gravimeters. i don't see how a gaas fab is relevant to either mems gravimeters or superconducting gravimeters!

similarly 'magnometers' are not a thing, and magnetometers are generally either superconducting or pretty classical, so i am getting the feeling you are just trolling me to see if you can get a reaction by posting stuff without any consideration for whether it is true or not

Re: Britain buys semiconductor factory for defence purposes

#98
post #96

Earlier quoted context omitted.

I live in the UK. In my experience only English people think they are interchangeable since they use it a lot implicitly.

I also live in the UK. I mean, sure I agree with you, but that doesn't stop it being common parlance.

It’s definitely not common parlance in Scotland to say “north east” when talking about the UK and mean England, but I can’t speak for NI or Wales.

A UK website making international articles should at least use “North East of England”, or perhaps “North East (England)” to comply with the official ONS ITL name as someone else pointed out. Even UK wide articles should do this.

Re: Britain buys semiconductor factory for defence purposes

#99

Earlier quoted context omitted.

The most advanced optical lithography for 6 inch wafers is I-line (365 nm wavelength). For compound semiconductor fabs, they can use e-beam lithography which allows for shorter gate lengths. Some companies are also clever about taking I line lithography and patterning tricks to make smaller features for gates.

> Some companies are also clever about taking I line lithography and patterning tricks to make smaller features for gates. Well that's the critical question. Is that being used? Lithography using 193nm light varies from 130nm down to 10nm, if not wider. 365nm probably doesn't vary as much, but just saying the wavelength doesn't give a clear answer about the node size.

A lot of the tricks used on 193 immersion tools for lithography scaling requires sophisticated deposition and etch processes which are not available on old 6 inch tools. Given that this factory was used for faceID parts, I suspect it was making VCSELs or other optoelectronics. These components don’t require fine lithography so it’s probably a 0.35 um capable fab.

Re: Britain buys semiconductor factory for defence purposes

#100

This sure feels like yet another sign that major global powers are all gearing up for war. This could be as benign as a government ensuring that the 100 jobs aren't lost, but given everything going in in both Europe and the Middle East it sure seems like more than saving such a comparatively small number of jobs. They could have just signed large(r) contracts with the company to financially secure the company, acquis…

If you've been watching the Russian invasion closely, you'll have noticed that while it's good to have friends and allies with necessary ingredients, it's even better to be as self sufficient as possible. Relying on a foreign orange cheeto might ruin your recipe for self defense.

Yeah. As a European I feel humiliating how fumbling the EU has been to respond to the Russian invasion of Ukraine, and feel glad that our American friends are around to pick up the slack even though I'd be happier if we didn't need them :-/ so thank you on behalf of my moronic continent.
Post reply on HN