Chapter 467 Lubyanka’s Progress
Each chip has a set of 4 photolithography drawings. The PMOS process Gao Zhendong is temporarily planning to use is the simplest one. He even did not even passivate the last step. Let’s put it aside for the time being. In short, the main thing is to get it done.
4 drawings, respectively forming the P area, gate, external contact hole, and internal wiring of the chip. In the end, the wires are drawn out through the solder bumps. Even if it is done
And this time The process is extremely extensive, 80μm. With this line width, one is to consider the success rate. The first few chips are mainly to demonstrate the principle and process feasibility. It is better to be more extensive.
At the same time, it is also for convenience when making masks, etc. 80μm can be processed directly with the help of auxiliary tools.
Moreover, the line width is larger, but it has high reliability. As for power consumption, haha, at this time, there are many more things in the circuit that consume more power than the integrated circuit, so saving the integrated circuit is of little significance.
Even with such a large line width, considering the large area spread by 14 pins, let alone NAND gates and NOR gate chips, even the much more complex D flip-flop , are still a bit too big, and it is impossible to fully fill them.
Gao Zhendong finally knows why C8008 uses that weird 18-pin device. The physical space on the chip cannot be used up at all. Why use more pins? It’s not a good idea to save costs. But in the end, the interface pins of C8008 were stretched and had to be reused in large quantities. Not only C8008, but also C1103, which is also considered an Intel leader.
Major companies in the early stage of information technology are full of mind-blowing operations similar to Intel's move.
Although the omnidirectionally adjustable mask stage has not yet been developed on the basis of the workbench, in the first generation process, Gao Zhendong is not prepared to make the mask stage omnidirectionally adjustable. Yes, it is enough to be able to adjust the height and tilt. To put it bluntly, it can be adjusted with screws. It is no different from the finished product. It is just a shelf to hold the mask.
The mask table and optical system are both semi-fixed, which reduces the difficulty of the lithography machine to a minimum but does not affect its usability.
After arranging this matter, when he returned home from get off work, Gao Zhendong told Lou Xiaoe that he was going on a business trip. Lou Xiaoe was quite understanding: "Ten days? Then I will go home and live during that time."
After saying that, he hugged Gao Zhendong's neck: "But, you have to go out with me on the weekend, haha."
To make up for it, Gao Zhendong understood and nodded repeatedly.
But Gao Zhendong perfectly inherited the virtues of his previous life: he can go wherever he wants, you can make the strategy, and I will follow others and pay for it.
Fortunately, Lou Xiao'e is now decisive. Anyway, she still has a few days, which is enough time for her to figure out where to go.
The next day, as soon as Gao Zhendong arrived at the office, he started editing files on the computer.
He wants to strip out the design part of "Integrated Circuit Design and Manufacturing". It's time for Beijing University of Technology to open a new course.
In fact, there is no other way. With the progress of various sub-processes of integrated circuits, the establishment of this course has become urgent.
Not to mention anything else, even if he has large-scale advanced ICs such as CPUs, he has the channels and his own methods to create them, and does not require too many people to participate. However, this matter cannot be done by him alone, and he must also retain Plant the seeds.
The entire CD4000 series or 74/54 series involves hundreds or even hundreds of chips. These chips have their own uses in the circuit. There is no way now, but once the application of digital circuits becomes popular, Now, if we still rely on NAND gates and NOR gates to build digital circuits bit by bit, it will be too complicated, and it will be a huge waste of resources, manpower, and cost.
Take the three types of chips he is planning to make as an example. Although the D flip-flop is many times more complex than the four-2 input NAND gate, the difference in mass production cost is not too big regardless of the design. The importance of finished functional digital chips is that they can effectively reduce costs, improve design efficiency, and improve work reliability.
And he himself cannot devote himself to this matter for a long time, so the simplest way is to teach a group of people, and then these people will directly invest in this matter.
In Gao Zhendong’s opinion, the third and fourth year students in related majors from Beijing University of Technology are the best. They have enough professional background knowledge, enough brains, and enough motivation. They can even do it in school. Started work.
As for the leaders of these tasks, he planned to start with the three people sent by the National Defense Work Committee.
——
At about the same time, in a building on the edge of Lubyanka Square, several old men were exchanging something.
“I think you have to give me something new, my dear Davari, whether it is military or civilian, they are now complaining that there is no improvement in the work of our comrades in the south. "
An old Maozi opposite him was quite disapproving: "Comrade, comrades in the south have only socio-economic value and no technical value. Our main energy is to look westward."
"Da. Varish, but the department that complained to me obviously has a different idea than you. They have to waste precious rubles to import steel, computers, and software from the south. Even in the military field that we have always been proud of, they have to start using it. Use high-value technology to exchange something with them.”
"But." "There is no but. I called you here today, not to listen to your excuses. My dear Davari, what I want is the result." The comrade who complained emphasized his tone.
“Well, my comrade, we are working hard. You know, unlike in the west where we can almost mix into the sea like rainwater, we are too conspicuous in the south. We have to find enough 'bridges' first, otherwise we won't be able to do anything specific."
"My dear Davari, you can't use one reason many times!"
"There is still good news, comrade, we are not without results."
"Okay, let's talk about it. I hope your 'results' can at least allow me to do my job in front of others." The person who complained softened his tone.
He is under a lot of pressure. In fact, even within Lao Maozi, the people of Lubyanka are far from being as powerful as the legend says. They have many things to fear and consider.
“Through the efforts of the comrades over there, we finally determined the source of the things they were interested in. You know, our people there are mainly technical personnel. Not many people are willing to cooperate with our work. They have their own pride, and our work is very difficult." An old man talked about the harvest and also found reasons for his slow work.
“Ha, aha! Listen, my Davari, listen, what a significant achievement this is, it really surprises me. This is why you spent so much time, The so-called progress? Ah, Davari, you remind me of my colleagues in the Middle East. They are even proud of having obtained a civilian injection that is used on a large scale!”
Perhaps this "progress" was so perfunctory that the old man who kept urging the work made merciless ridicule. This sarcastic attitude was so obvious that it has already caught up with John Bull's mention of Gallic Chicken S2 sliding at the speed of light. Attitude.
"No, comrade, I think your brain is smarter than mine. If you listen to me, you will know whether our progress is meaningful. There are signs that most of their technological sources, whether military or civilian, come from At a steel company in the southern capital."
Hearing his words, the ridicule intensified: "My Davari, tell me how much Vodka did you drink before going to work this morning? A completely unrelated field, coming from a steel company? Your words are as ridiculous as the big ribba I ate this morning coming from a bloody slaughterhouse."
"No, I'm sober. I will definitely go drink some later, but now, I haven’t touched that thing for 8 hours, you have to believe me.”
This sentence made the comrade who had been complaining sit up straight. Body: "Are you sure?"
"Sure!"
This non-alcoholic answer made the complaining comrades realize that even if they only got this little information, it might be a great development.
"Okay, I admit, if you are telling the truth, then this news may be really valuable. Is there any further news? Davari."
" No, we have only reached this point, but as long as the bird emerges from the clouds, we will always have a chance to catch it, won't we? "
Complaining comrade. I don't know whether the other party's statement that there will be no further action is true or not, but he at least has a reason to communicate.
"Well, I hope you will get something as soon as possible. Please give me a report on the current situation, Davari."
Watching several Davaris in charge of southern affairs leave, he looked a little more relaxed. It would be great if there was a university called Cambridge there. He couldn't help but feel a little resentful.
At the same time, the leaders of the National Defense Working Committee were listening to the report.
"Tell me, Gao Zhendong is using his own money to ask Factory 1274 to process a batch of special infrared components through the Institute of Guidance and Research?" the leader asked with interest, smiling.
"Yes, but Comrade Zhendong didn't say what it was used for. It seemed like he was using it for himself."
"Haha, what kind of tricks is this kid secretly doing? It's really exciting." The leader wasn't worried about what bad things Gao Zhendong was going to do. He was just curious. Is Gao Zhendong going to do something special again by paying out of his own pocket so mysteriously?
The last time this happened, it was laser, and the last time, it was DJS-59. Oh, by the way, those softwares are almost the same as DJS-60D.
But the leader is not prepared to intervene. This guy is very stable. When the time comes, he will naturally come up with something good.
(End of this chapter)