News on China's scientific and technological development.

horse

Colonel
Registered Member
yea, but SMIC also use US manufacture tools like applied materials, so Trump could go after SMIC after huawei start shift its fab to SMIC like he did with TSMC. maybe thats why Huawei want to work with samsung in short term, long term they want become something like Samsung where it can fab its own chips.
Maybe that is what they want?

SMIC is a state owned company, and the Americans are going after the Chinese state, in other words.

Not sure how that is even possible.

At this point, the only thing the Americans can do to stop China is a first strike.

:D
 

free_6ix9ine

Junior Member
Registered Member
(cont)

a while.

640

The left picture is a schematic diagram of the double-beam overlap processing technology; the right picture is an electron microscope picture of a 5nm slit electrode

Similarly, in Optics Valley, China, the relevant team of Wuhan Optoelectronics National Research Center issued a patent as early as 2018 [ 4 ] , proposing a dual-beam micro-nano optics manufacturing method, which modulates auxiliary light and matches self-developed photoresist to make visible light The manufacturing achieves a feature size of 10 nm or less and a resolution of 50 nm.


640

Device diagram of dual-beam optical micro-nano manufacturing method applied to single-focus laser direct writing

At present, the technology is being industrialized relying on Wuhan Optoelectronics Industrial Research Institute. Based on the dual-beam super-resolution nanolithography technology, the team has achieved high-precision direct writing lithography with a minimum line width of 9nm and a minimum line spacing of 52nm, and a 9nm dual-beam super-resolution The direct-write lithography machine has achieved commercial sales. The dual-beam super-resolution projection lithography experimental prototype was also tested in 2019, and the research and development of large-scale engineering prototypes is being carried out to rapidly promote the industrialization process.

"Through upstream mergers and acquisitions and introducing customers as shareholders to open up the upstream and downstream of the industry and create a community of interests in the industry chain, ASML has grown from obscurity to the overlord of lithography machines. We also invite all parties to carry out technical cooperation with an open mind, hoping to go out A different route to localization of light sources."

With the continuous development of technologies such as the Internet of Things and 5G, semiconductor demand will continue to grow in the future. According to IBS data, in 2018, Chinese IC design companies demand about 80.5 billion yuan in wafer manufacturing, accounting for 19.7% of the global foundry scale of 408 million yuan, and the demand will rise to 30.5% in 2025.

Relevant research institutions believe that under such a pattern, it is imperative to realize the localization of lithography machines. At present, there is a big gap between the domestic and foreign top lithography mechanisms, and the national system cannot break through the EUV route diffraction limit in a short time. Under this background, the development of the super-resolution technology route based on dual-beam technology may be a bright spot. Domestic substitution of engraving machines brings dawn.

references

[1] Yang Ji. Extreme ultraviolet radiation source device: China, 110837208 [P]. 2020-02-25.

[2] Zhang Zongxin. LPP-EUV light source system based on plasma confinement: China, 111399346 [P]. 2020-07-10.

[3] Liang Qin, Yuanqing Huang, Feng Xia. Nano Letters 2020, 20, 7, 4916-4923.

[4] Gan Zongsong. A manufacturing method of dual-beam micro-nano optics: China, 1083279550 [P]. 2018-07-13.

@WTAN Could you chime in? The translation is hard to decipher. What's the difference between a direct write vs the dual beam? Sounds like the dual beam is just two direct write lasers attached? Does it use a photo mask? What's the efficiency level?
 

latenlazy

Brigadier
@WTAN Could you chime in? The translation is hard to decipher. What's the difference between a direct write vs the dual beam? Sounds like the dual beam is just two direct write lasers attached? Does it use a photo mask? What's the efficiency level?
I haven’t read through the article yet but I don’t think the “dual beam” here refers to multi beam etching. Rather it’s referring to using two independent laser beams to generate a shorter wavelength interference pattern that gets better resolution. Because it’s using photons you’re still going to need a mask, but the mask here doesn’t have an etch pattern acting as a stencil. It’s a just blank layer you’re directly writing onto before dissolving away the unexposed parts. This sort of direct write technology is often used for making the etching masks used for masked scan approaches, or for repairing defects. It‘a going to be limited the same way all direct write technology is for mass producing chips. It doesn’t do away with the need for a scanner. In fact it’s probably being marketed as an equipment for mask writing.
 

free_6ix9ine

Junior Member
Registered Member
I haven’t read through the article yet but I don’t think the “dual beam” here refers to multi beam etching. Rather it’s referring to using two independent laser beams to generate a shorter wavelength interference pattern that gets better resolution. Because it’s using photons you’re still going to need a mask, but the mask here doesn’t have an etch pattern acting as a stencil. It’s a just blank layer you’re directly writing onto before dissolving away the unexposed parts. This sort of direct write technology is often used for making the etching masks used for masked scan approaches, or for repairing defects. It‘a going to be limited the same way all direct write technology is for mass producing chips. It doesn’t do away with the need for a scanner. In fact it’s probably being marketed as an equipment for mask writing.

Great synopsis. I don't understand why it's so hard to generate EUV light? Didnt China develop a laser weapon for air defense?
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Cant we use the same tech to light up some tin?
 

SPOOPYSKELETON

Junior Member
Registered Member
The Litho Machine is the latest SMEE 22/28nm and is able to produce 7nm with multiple patterning. But how quickly Huawei is able to produce 14nm and 7nm will depend on the sophistication of the other Semiconductor equipment on the production line. For Eg: the etching, Ion Implanters Pvd, Cvd etc

Well, looks like the US is going to strike before that is ready. 1-2 years of turbulence in the market?

 

KYli

Brigadier
Sanctioning SMIC and YMTC might actually help Huawei. Now all the major players in the Chinese semiconductor industry is on the same page. That means Huawei wouldn't have a problem of getting low end chips from domestic suppliers. Maybe not 7nm, but 28nm and 45nm chips should not be a problem and 100% local 14nm could also be available fairly soon.
 

SPOOPYSKELETON

Junior Member
Registered Member
Sanctioning SMIC and YMTC might actually help Huawei. Now all the major players in the Chinese semiconductor industry is on the same page. That means Huawei wouldn't have a problem of getting low end chips from domestic suppliers. Maybe not 7nm, but 28nm and 45nm chips should not be a problem and 100% local 14nm could also be available fairly soon.

"Bad thing is actually good"

No.
 

horse

Colonel
Registered Member
Well, looks like the US is going to strike before that is ready. 1-2 years of turbulence in the market?
More like the Chinese stock market continues to go up, and the American stock market continues to go up.

There is a saying in business ... anyone can be replaced.

Look at Micro$oft after Bill Gates left. They grew bigger. Apple did not die when Steve Jobs left for good.

Replacing parts will take more time, but China is not an industrial weakling, they are the biggest manufacturer in the world, with all sorts of tech industries, including leading tech industries such as cell phones and 5G.

I think the American government is delusional.

Look at the US government war against Huawei.

Huawei sells the most cell phones number #1 in the world.
Huawei 5G gear still the leader in that realm.
Shenzhen builds world's first stand alone 5G network, with Huawei gear.

This all happened during this US government war against Huawei. On some level, this is serious, but on another level, this is a complete joke. Nothing you can do, except get on with it.

They will take on this project of making it all American free, at China speed.
 

horse

Colonel
Registered Member
Sanctioning SMIC and YMTC might actually help Huawei. Now all the major players in the Chinese semiconductor industry is on the same page. That means Huawei wouldn't have a problem of getting low end chips from domestic suppliers. Maybe not 7nm, but 28nm and 45nm chips should not be a problem and 100% local 14nm could also be available fairly soon.
Well, what is so weird about going after SMIC and YMTC, is that they are not industry leaders.

These are a couple of companies just trying to get off the ground. There is nothing to kill.

They are not going to run out of money. Deny them American parts, they will look somewhere else.

Unless the Americans claim they own everything. Shit, what about 5G networks!

These recent examples of sanctions from the US government smack of covering my ass philosophy of the sycophant bureaucrat, where no one wants to take the blame for something that has clearly failed.

Shenzhen has a stand alone 5G network today, which happened Monday, and no one dares report it in the entire week, in the Western Liberal media.

They can suck an egg!

:p
 
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