Chinese semiconductor industry

tokenanalyst said:

North Huachuang N7 project is about to fully complete the structural topping​

According to news from Weibo, Beijing Yizhuang, NAURA's N7 project is expected to fully complete the structural topping on December 25.

The project officially started in April this year , and the underground structure was fully capped in October . Up to now, 99% of the main structure construction project has been completed, and the secondary structure construction will be carried out in 2023, and it is expected to be completed in March 2024.

It is reported that after the completion of the project , it will become the largest equipment manufacturing base of NAURA , further improving the production scale and product capacity of NAURA in integrated circuit equipment, new semiconductor equipment, LED equipment, and photovoltaic equipment .

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Chinese gov't can help semiconductor industry by subsidizing these massive Capex projects that expand toll production capacity. I would think they will announce more new factories after this since the demand for domestic tools have significantly increased in light of the October sanctions.

NavInfo, which is the leading Chinese AV map/navigation provider, has released the AC7802x line of MCU.

Looks like Royaltech(乐研科技) is coming out with new network security products (seems to just be routers) using Phytium E2000D and E2000Q CPUs.

From their product page, looks like they also have products with Loongson, Zhaoxin and Hygon chips as well as Intel CPUs

Plane gratings manufacturing research in China​

1-Introduction​

As the core devices of high-end immersion lithography machine [ 1 ] , inertial confinement nuclear fusion laser drive device [ 2 ] and high-energy laser spectral beam combining [ 3 ] , single large-size high-precision holographic grating has important applications. For a long time, there has been a certain gap between my country and developed countries in Europe and the United States in the manufacturing technology of large-scale high-precision holographic gratings, which has seriously restricted the development of 193ArF immersion step-scan lithography machines and inertial confinement nuclear fusion laser drive devices in China. At present, grating manufacturing companies in developed countries in Europe and the United States are challenging the manufacture of 1.5 m single-body holographic gratings. By then, human beings will move to a higher level in the manufacture of holographic gratings. The manufacture of such large-scale and high-precision holographic planar gratings usually requires extremely sophisticated special equipment, such as large-aperture holographic interference exposure devices/scanning interference lithography machines, meniscus coating machines, and special ion etching machines. Therefore, it is of great significance to study large-scale high-precision holographic planar grating manufacturing technology and special equipment, no matter from the perspective of meeting major national needs or improving the manufacturing level of holographic gratings in my country.

tokenanalyst said:

North Huachuang N7 project is about to fully complete the structural topping​

According to news from Weibo, Beijing Yizhuang, NAURA's N7 project is expected to fully complete the structural topping on December 25.

The project officially started in April this year , and the underground structure was fully capped in October . Up to now, 99% of the main structure construction project has been completed, and the secondary structure construction will be carried out in 2023, and it is expected to be completed in March 2024.

It is reported that after the completion of the project , it will become the largest equipment manufacturing base of NAURA , further improving the production scale and product capacity of NAURA in integrated circuit equipment, new semiconductor equipment, LED equipment, and photovoltaic equipment .

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Why do they need an underground facility, unless...

FairAndUnbiased said:

Why do they need an underground facility, unless...

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Maybe the article is referring about the foundations that maybe for this kind of manufacturing are needed to isolate the structure from vibrations.

FairAndUnbiased said:

Why do they need an underground facility, unless...

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Very likely for vibration isolation, and to keep the room temporature and moisture steady.

精密制造是怎样炼成的？--大连光洋科技大型“地下车间”探秘​

新华网大连３月１日电（记者姚湜、王炳坤）在东北老工业基地的前沿城市大连，有这样一家企业，走进厂房，宽大的电梯内只标有“１”和“－１”两层，电梯轿厢降至地下１４米深处，就进入开阔的“地下车间”。初春的大连寒意未消，而车间内温度适宜。机床设备在工人的操作下有条不紊地工作着，听不到传统厂房里空调散热设备的轰鸣声。

“为什么要把生产车间藏在地下呢？”记者近日在大连采访时，大连光洋科技工程有限公司董事长助理许钢一边领记者参观，一边解释，“加工１米长的钢铁构件，温度每变化１摄氏度，长度方向的变形量可达１２微米，相当于一根头发丝直径的五分之一。这么细微的变形在生活中可以忽略不计，而在高端机床设备的生产中，则可能造成构件和设备不匹配，影响制造的精度。厂房建在地下，是为了以节能环保的方式恒温恒湿，保障精密制造。”

许刚说，目前我国对加工中心早晚温度变化要求的标准是５摄氏度以内。这个地下车间面积达１万多平方米，利用地下温度恒定的特点和创新性调温系统，其温度常年控制在２０摄氏度左右，上下不超过１摄氏度。“这么大的车间如果建在地上，每年的空调费就得数百万元，而现在仅需十分之一，且其洁净标准可达十万净化级。”许刚说。

据许刚介绍，打地基时工人在这座地下车间的底部浇筑了１．２米厚的混凝土，最大限度保证车间的稳定性和防震性，周边马路上即使重型卡车经过也不会造成颤动，更好地保证制造精度不受外界影响。

英国伯明翰大学统计显示，由机床热变形引起的热误差占总机床误差的４０—７０％。借助这座“地下车间”，光洋科技在国产大型机床上实现了定位精度０．５微米，重复定位精度０．１微米，运动机械分辨率０．１微米的国际领先水平。去年４月第十三届中国国际机床展览会上，从这座车间“走出”的一款高速高精度五轴立式机床被一家德国经销商看中，成为我国首台出口发达国家的完全自主知识产权的机床产品。光洋科技的数控机床厂成立５年多来，以２６项授权专利（其中发明专利１０项）的创新能力，被认定为国家数控机床高新技术产业化基地骨干依托单位。

新一轮席卷全球的工业革命对制造业提出了更高要求，装备制造正朝着智能化、精密化、清洁化方向转变。大连市经信委主任靳国卫说，老工业基地数十年来的粗放式生产加工正在悄然改变，这样的提档升级日益增多。

tphuang said:

Chinese gov't can help semiconductor industry by subsidizing these massive Capex projects that expand toll production capacity.

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Haven't hear anything from SMEE for quite a while. In sharp contrast to other equipment manufactures's vibrant activities，new expansion project being announced all the time，SMEE has been very quite. Given the criticality of lithography machine，shouldn't the gov subsidize SMEE to expand the capacity now？

tonyget said:

Haven't hear anything from SMEE for quite a while. In sharp contrast to other equipment manufactures's vibrant activities，new expansion project being announced all the time，SMEE has been very quite. Given the criticality of lithography machine，shouldn't the gov subsidize SMEE to expand the capacity now？

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I think they likely act low profile now, no news doesn't mean there is no progress

tonyget said:

Haven't hear anything from SMEE for quite a while. In sharp contrast to other equipment manufactures's vibrant activities，new expansion project being announced all the time，SMEE has been very quite. Given the criticality of lithography machine，shouldn't the gov subsidize SMEE to expand the capacity now？

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Lithography equipment is indeed critical.

Why do you think SMEE is so quiet?