Chapter 1469

"Therefore, since 2001, we have been committed to the research on chip level atomic clock manufacturing and related processes. Thanks to our strong advantages in mechanical manufacturing and precision micromachining processes in China, we have just made some breakthroughs not long ago..."

After finishing the research and development background of chip level atomic clock, Zhuang Jianye turned the conversation and introduced the achievements: "that is our ztm-dl-18 rubidium atomic clock. The specific parameters are 89mm long, 76mm wide, 28mm high, 200ml volume and 320G weight..."

"Wait, comrade Zhuang Jianye, what is the accuracy of this ztm-dl-18 rubidium atomic clock?" before Zhuang Jianye spoke, a leader of the headquarters couldn't wait to ask.

Zhuang Jianye replied with a smile: "We have also made breakthrough progress in this regard. Through testing, we know that the timing accuracy of ztm-dl-18 rubidium atomic clock is controlled at 3 parts per billion of frequency stability, and the 24-hour drift rate is less than 2 parts per 100000 billion, which exceeds the chip level atomic clock developed in Europe. With the cooperation of our improved hydrogen atomic clock, we can achieve a navigation accuracy of about 1 meter. If it is in algorithm For system optimization and track integration, the limit accuracy can reach 1 decimeter. "

As soon as this remark came out, it was like putting a huge stone into a calm deep pool, which immediately set off great waves in the venue.

There is no way. The data given by Zhuang Jianye is too amazing. Apart from others, the volume and weight of rubidium atomic clock are 320 grams, 200 ml, less than 90 mm in length and width, less than 30 mm in thickness, and less than the size of a palm. For satellites that weigh hundreds of kilograms and tons, let alone one, it is not a problem to install ten or eight.

The weight of rubidium atomic clock is greatly reduced. The benefit is not to reduce the total structure of satellite, but to give up the saved space and load to communication components.

For example, it can load higher power transmitters, for example, it can carry more anti-interference equipment, for example, the diversification of communication system can be realized, and so on.

It can be said that there are many benefits.

Of course, the key problem is that the weight and volume of ztm-dl-18 rubidium atomic clock are greatly reduced, and the accuracy is also amazing.

The timing accuracy shall be controlled at 3 parts per 10 billion of frequency stability, and the 24-hour drift rate shall be less than 2 parts per 100 billion.

Compared with the time service precision control developed by Switzerland, the frequency stability is 5 parts per billion, and the 24-hour drift rate is less than 1 part per trillion, which is almost an order of magnitude higher.

This can be seen from the accuracy provided by the two. The ztm-dl-18 rubidium atomic clock, which can provide an accuracy of about 1m, has far failed to see the tail lights of European goods with an accuracy of only 10m.

However, Europeans are unique in the field of hydrogen atomic clocks and have excellent accuracy control. As a backup, they can achieve an accuracy of 1m with the cooperation of a new generation of chip level atomic clocks.

But even so, compared with ztm-dl-18 rubidium atomic clock, which can provide 1m accuracy alone, the hydrogen atomic clock carried is completely inferior to the system backup, not to mention, it does not have an advantage in service life.

You should know that the people in the venue were still lamenting that the domestic atomic clock could not pass the test. How could it be possible to complete the strategic intention of the headquarters by April next year? When thinking about what to do, Zhuang Jianye came up with a ztm-dl-18 rubidium atomic clock that was more advanced than the same one in Europe.

The feeling of shock, surprise and disbelief immediately filled the venue, and finally turned into something called doubt, which was re projected on Zhuang Jianye with strange eyes.

It's no wonder that everyone here will look at this matter like this. China Tengfei's main business is aviation and aerospace. Although it occasionally involves the manufacturing of precision instruments, it is also an unimportant edge product, and most of them are for emergency rush to get on the shelves. With a stable supply of goods, China Tengfei will not continue to struggle in this regard.

After all, large transport aircraft, large regional airliners and shipborne aircraft in the aviation field, hypersonic gliding warheads in the aerospace field, ztm-nb-6 solid launch vehicle rapid launch system, marine environment monitoring satellite and relay satellite have made China's take-off busy. Do you still want to consider other directions?

Of course, even if China takes off 10000 steps back, even if it has ideas in this field, it does not have enough experience. You should know that the equipment, technology and manufacturing of chip level things are fundamentally different from the precision micromachining involved in traditional aerospace.

The precision micromachining of aerospace can break the sky, that is, the accuracy of a few wires can be measured by a fraction of the hair.

But this precision is only the most elementary entry in chip level products. You know, the units in this field can be nanometers.

It's like a rough man and a little girl. Let the rough man who is used to swinging a hammer pretend to learn from the little girl to embroider with an embroidery needle. The picture is... Too beautiful... Too hot eyes!

So it's not that everyone here doesn't want to believe what Zhuang Jianye said is true, but these people who mix up from the front line rationally tell them that China's rapid involvement in the field of chip level manufacturing itself is a paradox.

Zhuang Jianye is not a fool. He can't see the suspicious eyes of the people present, so he explained with a smile: "Although China Tengfei itself does not involve chip level manufacturing, we have never stopped the layout of upstream and downstream industries of chip level manufacturing in recent years. For example, several enterprises under our aerospace Optics Research Institute are specialized in the manufacturing of excitation light sources for deep ultraviolet lithography machines; and several listed enterprises invested and controlled by Tengfei are in the guidance platform and supply machine The processing ability of structure and ultra precision light source reflection is in the forefront of the world.

Moreover, we also hold two chip manufacturing and special equipment manufacturing entities, whnb integrated circuit manufacturing Co., Ltd. (Group) and wznb microelectronic equipment manufacturing Co., Ltd. (Group). We should know that one of them is the world's fourth largest new product manufacturer OEM for European and American chip giants; the other is the world's sixth largest chip special equipment manufacturer.

Through our capital operation and rational layout in recent years, China Tengfei itself has nothing to do with chip level manufacturing, but it can also be said that it has a very deep origin. We have not set up any special project team or department in China Tengfei in the manufacturing and process development of chip level rubidium atomic clock, but through the integration of upstream and downstream industrial chains that have participated in investment in recent years Give full play to the comparative advantages of these manufacturers and do it naturally by improving the potential of the industrial chain... "

After a pause, Zhuang Jianye unscrewed the mineral water in front of him, drank two mouthfuls, and immediately said proudly, "the idea is the same as that of the lithography machine. The domestic 193nm deep ultraviolet lithography machine has been used in whnb integrated circuit manufacturing Co., Ltd. (Group) The company has obtained applications and achieved good results, which is developed by China's take-off through industrial chain integration. Since we can even make lithography machines, is it so difficult for chip level atomic clocks? "