Chapter 464 Oh, exceeded? !
If Lao Maozi and Gaul Chicken are depressed, then the comrades of the Ministry of Foreign Commerce are celebrating.
It is worthy of being the work of "the first person to earn foreign exchange through exports". Not only is this product easy to sell, but the price is not low and the profit margin is high.
In the countries where DJS-59 was purchased, not all DJS-59s are equipped with operating systems, but a quarter to a third are still available.
Based on a rough calculation of the price, this means that the comrades from the Ministry of Foreign Commerce sold an additional amount of money equivalent to about 5% to 6% of the previous total sales of DJS-59. Don’t underestimate this number.
In later Internet slang, this is called mining inventory. Anyone who already has a DJS-59 computer is a potential customer, and there is no delay in developing incremental customers.
At the same time, the software has no cost, except for the small tape.
In general, the comrades of the Ministry of Foreign Commerce have carried out the non-capital business in full swing and relatively smoothly.
Information technology is relatively easy to form path dependence, especially after investing a lot of resources in a certain architecture and achieving a lot of results, it is difficult to change it.
This situation, in future Internet jargon, is called "ecology".
Judging from the development of early PCs, in terms of performance, the CPU performance of X86 has never been the best, but its combination with huge hardware has made this alliance almost universal, relying on this. Oh, by the way, the hard-core operating systems at that time were not the best either.
But when it comes to ecology, Gao Zhendong has not worked hard on any productivity software now. Firstly, because he does not have so much energy and cannot do it himself. He can only guide others to do it. Secondly, The time has not come yet, he is still waiting, waiting for an opportunity, waiting for a milestone.
He is currently doing only two things in terms of software.
One is the organization and preparation of the network protocols of the operating system, and the other is that he is making a list, and he is making a list of most of the contents that he will not do himself.
At this time, it has already entered December, and half a month has passed since the start of the 6011 battle. Gao Zhendong doesn’t know how other people’s progress is, but Gao Zhendong’s own ten There are multiple steel types, and the processes for three of them are about half completed.
One of them is being carried out by the master who has taken charge of himself and is keeping an eye on the people from the No. 3 Plant. One is being done by the AOD branch of the Capital Iron and Steel Plant. The remaining one is being done by people from the factory.
In addition to the one received in the name of the factory, the third rolling mill also organized manpower and started a subcontracting project here in Gao Zhendong. Fortunately, this is not the construction industry, and there is no illegal subcontracting. .
Judging from the number of technical personnel and production personnel in the factory, the one received in the factory is obviously not enough to eat. It is also a happy thing for everyone to be able to solve the problem here with Gao Zhendong.
Gao Zhendong went to the two groups in the factory and walked around to check out the situation, but he did not go to the one at the Jingang Steel Plant. He didn't have time. If he had any questions, he could just wait for them to ask them.
In this rhythm, someone came to him.
It's Yi Zhonghai. He is responsible for leading people to work on the workpiece table of the photolithography machine.
"General Engineer Gao, we finally got the workpiece table you asked for. Do you want to come and have a look?"
"That's great, Master Yi, let's go. Let's go!" Gao Zhendong became excited when he heard that one of the core parts of the lithography machine finally had some news.
Follow Yi Zhonghai to their workshop. As he walks, Yi Zhonghai introduces the general situation.
Generally speaking, this workpiece table is purely hand-made, especially the micro-motion part. If most parts of the macro-motion (coarse adjustment) part are made in batches by their apprentices, then the micro-motion (fine adjustment) part is ) part is that they did it bit by bit, measuring a little at a time, and practicing a little at a time.
However, for equipment with high output such as photolithography machines, hand rubbing is not unacceptable as long as the design and mechanism are determined.
And this thing is rough, but it actually lasts a long time.
A very unpopular fact is that 1~10μm photolithography machines are still widely used, but some are still in IC manufacturing, and some may be doing other things, such as PCB manufacturing. .
Gao Zhendong’s photolithography machine is not just for the purpose of integrated circuits. He only needs to make photolithographic PCBs with double-sided panels. Combined with his previous wave soldering for the computing center, there is no need for more, and he can automate the electronic products. Manufacturing can be handled easily as well.
Yi Zhonghai’s workshop is also in the third factory, just a few steps away. This is how the work of the third factory works. No matter which branch factory or workshop you originally worked in, once you take over the work of the third factory, in principle, you have to go to the third factory to complete it, unless the equipment cannot be moved.
Seeing Gao Zhendong come in, a group of masters and young apprentices looked at him, including Yi Zhonghai's apprentice, Qin Huairu.
This workpiece table does not use the technology of the workpiece tables that Gao Zhendong saw in his previous life, such as air flotation motors, laser interference and other technologies.
Firstly, there is no such technology, and secondly, there is no need to use that technology. Those things are prepared for nanometer-level precision. For Gao Zhendong who only requires 5μm, the difference is thousands of times.
The workpiece table overall looks quite small. It is not as simple as a shelf with guide rails and a table on top. The top is the workpiece table system, the middle is the vibration isolation system, and the bottom is Base, but strictly speaking, the latter two are not part of the workpiece table, but part of the lithography machine.
"Let me introduce you, Master Yi."
Here, the eighth-level fitter Yi Zhonghai is undoubtedly the leader. On the contrary, there are no professional mechanical designers, mainly because there are none in the factory, so this thing depends entirely on this Help the big and small masters to complete the experience.
Gao Zhendong called his name, and Yi Zhonghai pointed at the machine and introduced it bit by bit, using plain language. There were a lot of jargon about their fitter, lathe and other types of work. Gao Zhendong had to ask. To fully understand what it means, it feels a bit like reading slang on the Internet in my previous life.
The masters also recognized Gao Zhendong’s style of not hiding his shortcomings in this area and asking questions openly, which was right! Everyone answered enthusiastically.
After some communication, Gao Zhendong roughly understood the basic route and principle of this workpiece table. The accuracy required by Gao Zhendong was not beyond the capabilities of the masters, and he did not do other fancy work or high-level tasks. Technology is almost the precise motion control achieved by the reduction mechanism of machine tools.
The deceleration mechanism is said to be deceleration. Basically, it changes the state of motion according to a certain ratio. In fact, it can be used for different purposes, such as torque scaling, size scaling, motion state scaling, etc.
The gears used in macro motion and screws are used in micro motion. Through careful design, the masters of the third rolling mill have cleverly coordinated the gear sets, screws, etc. to achieve precise movement of the workpiece table. position.
It won’t be accurate in the future, but it is very accurate at this time.
For this thing, Gao Zhendong neither requires movement speed nor positioning speed nor stable speed. This allows the masters to have fewer things to worry about and consider when making it. The goal is both clear and pure.
Those indicators are needed for automated production, but Gao Zhendong is not considering that now. Unlike PCB and welding, the entire industry scale of IC is not yet reached, so why is production so fast?
Let’s first solve the problem. Once the participants have more experience and are more confident, they can then continue to improve.
In Gao Zhendong’s previous life, the contact and proximity lithography machines developed in our country in 1977 were also manual.
Gao Zhendong looked at the parameter table of the workpiece table in his hand. At this time, he felt a little like how others felt when facing him.
That's a surprise. I didn't expect such a good thing. Why did you come up with such a good thing? Never expected that.
"Master Yi, have you already reached 1.5μm for the moving standard deviation and moving average difference?" Gao Zhendong said with surprise.
The moving standard deviation determines the lithography line width, and the moving average difference will affect the overlay accuracy. These two indicators are what Gao Zhendong values most in this area, while other indicators are slightly behind.
Yi Zhonghai and all the masters looked at each other with pride.
“Yes, we worked on it for a while, and after thinking about it together, we felt that with the conditions at hand and working harder, we could actually do better. So everyone tried their best to find a way and risked their lives. I have lowered this to 1.5, and I think it should be useful to you." The words are simple and simple, but the process must be quite difficult.
Watching Yi Zhonghai operating on the workpiece table and verifying the 1.5μm movement accuracy on the spot, Gao Zhendong slapped his thigh: "This is so useful! Masters, let's put it this way, you have achieved it It’s a big step forward to achieve the accuracy goal I want to achieve in the next step! Thank you!”
After that, Gao Zhendong took a step back, saluted everyone, and then raised his head.
"Dear masters, I hereby announce that the principle prototype of the special craft workpiece table project is basically successful and can be transferred to the next stage of the research. Thank you to all participants for their hard work and hard work."
Everyone The masters applauded in unison. There is nothing to say about the character of Chief Engineer Gao.
For Gao Zhendong, these two indicators have reached 1.5μm. At least one workpiece table can support the 5~8μm line width process. This greatly exceeded original expectations and accelerated the process. envisioned progress.
The solution of the workpiece table means that the mask table has also been solved. The two are highly similar in structure and function, except that one holds the mask and the other holds the silicon wafer. As for the optical system, it basically doesn't move. It's a delicate thing, so don't move it after adjusting it. It's only right to let the mask and workpiece move by themselves.
Gao Zhendong raised his head and called to Qin Huairu: "Master Qin, please go to the branch office of the third factory and ask them to inform the comrades from the propaganda office of the main factory to come over."
The reason why he called Qin Huairu directly was because the only two masters and disciples he was familiar with here were Yi Zhonghai. Naturally, it was not easy to ask Yi Zhonghai to do this kind of errands, so Qin Huairu had to work hard.
Qin Huairu responded and went out. Gao Zhendong smiled and said: "Masters, although this matter still has a long way to go, we still have to report this good news at least in the factory."
(End of this chapter)