It’s very hard to get marginal improvement on mirror reflectivity, since the higher energy your photons are the more energy they impart to the surfaces they encounter, the harder it becomes to control scatter, and the more photochemical interactions you induce. There are material limitations at work here, and if the materials at hand allowed for better reflectivity it would have already been done. It’s still much easier to increase output than to reduce degree and range of kinetic interactions between your light output and your optics. One potential path is to just use fewer mirrors, but there’s probably a limit to how much you can lean on that since you needed mirrors in the first place in part to control beam shape necessary to scan ever finer details. That said, the fact that you already have commercial EUV scanners used in production means that there’s already a known optimal configuration of mirrors to get effective scanning, so there’s really no need to reinvent the wheel here.
Chinese semiconductor industry
- Thread starter Hendrik_2000
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half related but does @WTAN have updates he can tell us about EUV?
LPP EUV, as used in commercial lithography, creates diffuse radiation. When focusing the light, it's not just the silicon-molybdenum collector modules absorbing light but also where alot of the EUV simply isn't collectable on the edges of the light diffusion. Much of the diffuse EUV light spectrum also deviates far out from 13.5nm.
There currently isn't any way around these issues unless other EUV sources are created. This is why the research into commercializing SSMB EUV has garnered so much interest. SSMB EUV is a coherent laser like light source that has narrow band spectral qualities whose spectrum is more easily fine tuned. In other words, it needs fewer mirrors and has way more efficient light delivery.
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What exactly is the USG going to do?
Usual tactic of price fixing charge of Samsung , hynix, micron from 2015 to 2021. Micron would probably be the informant against Samsung and hynix, and therefore take much reduced penalty. US micron will be off the hook
South Korea not taking side on the US and China conflict is the root cause.
Korean companies occupied a dominant position in China memory market.
China would also charge against Korean companies later and that would pave the way for YMTC and CMXT expansion.
US not happy with Samsung and hynix dominant position in the world and wants micron to leap past them
Korean memories getting killed is good for both China and US.
US government complaint about China semiconductor is complete hogwash. China semiconductor don't go to US market. Korean and Taiwanese are the real targets for US.
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US used similar tactics against Japan the 80s and 90s and is a primary reason how South Korea's semiconductor industry was able to take off. Just another part of the "Rules Based" world order as they call it.
Sounds like South Korean is getting plaza accorded, US lawfare one hell of a weapon.
antiterror13
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I am sure most of Gigabyte motherboard are made in China, same as Asus and others
Asus motherboard is my main choice
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