Chinese semiconductor thread II

[OptimusLion]

USTC achieves electrical control of single electron spin filling order in graphene quantum dot devices

Guo Guoping, Song Xiangxiang and others from the team of Academician Guo Guangcan of USTC cooperated with Origin Quantum Computing Co., Ltd. to realize the electrical control of the filling sequence of single electron spins in graphene quantum dots by utilizing the interaction between minivalley degrees of freedom and spin degrees of freedom in bilayer graphene. The research results were published as the cover article in the international physics journal Physical Review Letters published on January 21 with the title "Switching spin filling sequence in a bilayer graphene quantum dot through trigonal warping"

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[measuredingabens]

Directly 220 WPH productivity ?

Maybe, maybe not. I was looking at this more from a power and overlay focus than throughput.

 

[OptimusLion]

Returning to Wuhan from Shenzhen, Huake's "entrepreneurship group" focused on chip testing and broke the foreign monopoly after less than two years of entrepreneurship with a valuation of over 100 million yuan

"We were only established at the end of 2023. Currently, our company is valued at over 100 million RMB, and we have a large number of intended orders. We expect to achieve 15-20 million RMB in revenue this year."
On February 25th, at the Wuhan Institute of Intelligent Equipment Industrial Technology, Chen Peicheng, the head of Wuhan Sibo Micro Intelligent Technology Co., Ltd. (referred to as "Sibo Micro"), told reporters this good news.

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[Iron Man]

How long until that gets sanctioned by the US as well? South Korea isn't exactly independent given the US military bases there. And even if no bases existed they can always threaten the Koreans with pulling access to tools or materials.

The US will need a different excuse than unauthorized re-export of its technology, assuming this tech has 0% US technological inputs. It would essentially have be a more naked, exposed form of thuggery: "do not sell to China or else; we don't need to give you a reason".

 

[OptimusLion]

Song Qinghua's team at Shenzhen International Graduate School and collaborators have made new progress in the field of topological optics


Song Qinghua's team, an associate professor at Tsinghua University Shenzhen International Graduate School, together with Qiu Chengwei, a professor at the National University of Singapore, and Romain Fleury, a professor at the Federal Institute of Technology in Lausanne, first proposed the concept of a real momentum topological photonic crystal. The study proposed a disorder-assisted real momentum topological photonic crystal, which opened up a new direction for the application of topological optics. This innovative research is expected to promote the development of micro-nano optical devices such as photonic chips.

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[OptimusLion]

Total investment of 12 billion yuan, Silan Jihong's 8-inch silicon carbide project has been capped

According to Haicang news today, on the morning of February 28, the 8-inch silicon carbide (SiC) power device chip manufacturing production line project of Xiamen Silan Jihong Semiconductor Co., Ltd., a subsidiary of Silan Microelectronics, was officially capped after 8 months of intensive and orderly construction. The total investment of the Silan Jihong project is 12 billion yuan, and it will be built in two phases with a total construction area of 234,500 square meters. The first phase will invest 7 billion yuan. It is expected to be initially put into production in the fourth quarter of 2025 and trial production in the first quarter of 2026. After reaching full production, the annual production capacity will be 420,000 8-inch SiC chips.

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[OptimusLion]

Breakthrough results published in the main journal of Science, Fudan research team achieves new nanoparticle superlattice

The team of Dong Angang and Li Tongtao from the Department of Chemistry of Fudan University, the team of Li Jianfeng from the Department of Polymer Science, and the team of Ni Ran from Nanyang Technological University of Singapore have achieved the controllable construction of a series of new superlattice materials such as Kagome lattice, which provides a new research paradigm in the field of nanoparticle self-assembly and is expected to bring innovative applications in the fields of catalysis, energy, functional devices, etc.

According to reports, nanoparticles are considered to be "artificial atoms", and the superlattice (or supercrystal) constructed based on their controllable assembly is a type of mesoscopic condensed matter with crystal symmetry, which has important application value in the fields of energy, catalysis, mechanics, optoelectronic devices, biomedicine, etc.

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[Hyper]

Maybe, maybe not. I was looking at this more from a power and overlay focus than throughput.

Latest version in nxr:3800 and it has a light source with power around 500 watts. Overlay is around 1 nm. Will it directly jump to that?

 

[OptimusLion]

Breaking the international record! Beijing Institute of Quantum Engineering has made a new breakthrough in the field of photoacoustic quantum memory
The Beijing Institute of Quantum Information Science (hereinafter referred to as "Quantum Institute") officially announced that the quantum computing cloud platform Li Tiefu, Liu Yulong team and Aalto University of Finland, QTF Quantum Research Center Professor Mika A. Sillanpää, based on high-hardness single-crystal silicon carbide thin film materials, have successfully developed a multi-modal long-life photoacoustic quantum memory. The memory has set new international records in key performance such as mode stability and information storage duration.

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[measuredingabens]

Latest version in nxr:3800 and it has a light source with power around 500 watts. Overlay is around 1 nm. Will it directly jump to that?

The LPP light source posted in the previous thread sat on the 500 watt mark, at the very least. I'll need to fish out the overlay from the previous thread, as well. I don't see why China's first EUV needs to be start from something like 3400B, considering it was already testing a 500w light source back in 2023.