"Want to wait for me to come? I don't believe you haven't tested it in advance!" Guan Fei shook hands with each of them with a smile, and said funny... ≤

"Of course we tested it. But without the commander's confirmation and final recognition, we still felt a little uneasy and always felt like we were dreaming!" Several researchers laughed so hard that they rubbed their hands and said embarrassedly.

"What's wrong with being uneasy? It's just these circuits." Guan Fei smiled and waved his hand before they were anxious to speak, "Okay, okay, take out the things, I'll test them all one by one. Otherwise, you can't rest assured!"

He didn't think there would be any major problems with this batch of chips.

The integrated circuit level of this era is still in its early stages of development. On a silicon crystal cell substrate of a square centimeter size, the maximum component integration can reach about 30,000.

Although the country follows others' footsteps, it is not slow.

When the Americans invented the first computer in 1946, Harbin University developed the first simulated computer in China in 1957, which was almost eleven years later than the West.

Then in the second year, the first digital computer was developed with the assistance of Soviet experts.

In five or six years, the United States developed the second-generation transistor computer. In the 1963, China also developed the first large-scale transistor computer, which is seven years away from the West.

In ****, ibm developed the world's first integrated circuit computer. Later, in 1973, China also developed its own first fully integrated circuit computer, with the computing speed exceeding one million for the first time. All the operating systems used were developed by itself.

At this point, it can be seen that although the country is always slower than the West, the gap between the two sides has been within ten years. At the shortest time, it was within seven years.

However, the domestic idea of ​​focusing on theory and neglecting practice; focusing on military and neglecting civilian use has had a serious impact on computer development.

When foreign countries gradually turned their attention to miniaturization, commercialization and civilized computer use, China is determined to develop mainframes and supermainframes. Taking scientific research and military as R&D goals, it has gradually formed two parallel paths with the Western computer development ideas.

Miniaturization is not done, but the country lacks resources, and the resources invested in it are far from the mainframe. Moreover, after the development of the small machines, it has basically not been put into production in batches. It only produces a few, dozens, dozens, and most of them are only one or two hundred, and a small amount is provided for scientific research institutions. Compared with the booming commercial minicomputers and civil microcomputers in the United States, it is not the same level as the booming commercial minicomputers and civil microcomputers.

However, even so, domestic research on integrated circuits has not stopped.

The lithography, oxidation, diffusion, evaporation and other processes necessary for integrated circuit manufacturing were learned in China in the 1960s. However, the equipment was poor and the specific preparation process was not well mastered. Compared with Europe and the United States, the integrated circuits produced were one generation lower than those produced in Europe and the United States.

For example, at this time, the United States' integrated circuit preparation level was about 10,000 to 30,000, and the best level in China could only reach about 6,000.

There must be a gap, and it is still very large, but it is not despair.

Guan Fei doesn't take this gap into consideration. Key preparation technologies such as wafer preparation, lithography, evaporation technology, oxidation technology, diffusion technology, etc., seem to be extremely profound in this era, but in his eyes, it is not more complicated than manufacturing transistors. Under his guidance over the past year, the Military Sub-district Semiconductor Research Institute has achieved great results and has successively reached the same level as the United States.

The military sub-district transformation, homemade three-inch experimental wafer preparation machine, lithography machine and other equipment, with high accuracy and accurate control, and then optimized the process flow. Although the output is still very low, it can already prepare and process the integrated 30,000-yuan devices.

In the two previous tests, the yield rate of crystal preparation was well controlled at around 97%, while the yield rate of integrated circuit preparation reached 95%.

For integrated circuit preparation, the yield rate of crystal preparation and the yield rate of chip preparation are not additive, but product relationship. Each additional step will greatly reduce the yield rate output of the final product.

Therefore, the best level of the military sub-district is 92% yield rate.

That is to say, starting from wafer preparation, the initial raw material input required by one hundred yuan will eventually produce 92 intact chips.

Japan completely defeated Intel in the memory field by focusing on details and working hard for more than ten years. In Intel's own words, they tried every means, and the final yield rate of memory production was always 15 to 20% lower than that of Japanese memory production!

On a three-inch disk, the chips that can be accommodated are limited, and the yield rate is 15 to 20% lower, and the cost is not high enough!

Even if the wages of workers in the United States and Japan are equal, Intel cannot beat the Japanese. What's more, the wages of Japanese workers are only two-thirds of that of American workers, so there is no hope. American memory manufacturers fought with Japanese manufacturers for several years, but finally lost and had to give up the market.

In fact, Japan is not only in memory but also in processor manufacturing capabilities. With their thriving national strength, they are also ambitious and increase their investment to replace the United States' dominance in processors.

However, the processor is too sensitive, not memory, which can be used as a bone that can be thrown to Japan.

Advanced ideas in design, dominance in national strength, influence of the global computer industry, and different language environments all made Japan's investment in processors eventually waste. It could only use the chips it developed for game consoles, and a small number of self-made compatible machines that are exclusively used in Japan.

What Guan Fei intends to take is actually this path.

He did not have the idea of ​​developing a cross-age chip and then defeating the Americans. It is no problem in technology, but it is completely unfeasible in politics. The United States is not a real warrior, and only a fool would hand over the computer field that concerns the country's key points to China, which was still the enemy yesterday!

He took the curve to save the country. By stuffing his own private goods into various CNC equipment such as game consoles, CNC machine tools, and gradually expanded the scope of application of pure Chinese processors developed by the military sub-district, increased market share, and cultivated relevant software and hardware talents.

This is also to avoid the various products developed by themselves being cracked by competitors.

It is not that it cannot be cracked at all. Any static items and programs will be recognized and read by people using special equipment. But if you don’t have the habit of using Chinese, can you understand?

When you have worked hard to crack the circuit principle, I will release another upgraded version tomorrow. You will always be able to eat dust behind me.

When you rack your brains to find a Chinese master and understand the program, I will update the program immediately. You can only watch it!

Shen Zhixiang, the head of the research team, carefully took out an aluminum alloy suitcase, clicked and pressed the hidden lock, and opened the box with a light hand and foot. His movements were very gentle, just like the fragile exquisite porcelain inside, and he was afraid that his movements would be bigger, so he broke it.

All the researchers surrounded the side, and although they knew there was a mask, they still held their breath as much as possible. But from the masks that were quickly stained with fog, they could see how excited they were now.

The lid of the box was lifted to reveal rows of bright silver chips inside, each chip three centimeters long and two or five centimeters wide, and it was rectangular.

This is the small block plane packaging technology completed by Guan Fei, with the English abbreviation as qfp.

In this era, Intel and others are still using old-fashioned dual-row symmetrical packaging, and the processor looks no different from ordinary integrated circuits.

However, this packaging method is simple and simple, but the packaging size is much larger than that of the core chip and occupies a very installation position.

The square plane package is different, and the pins are drawn from four sides, making them more delicate and dense.

Its disadvantages are of course the opposite of the former, and it is more difficult to package. Laboratory small-scale preparation is also possible, while large-scale packaging requires a special production line and a large investment. Moreover, this is difficult to carry out on existing testing equipment in the packaging method, and special instruments are also required to test it.

But this is not a difficult task.

Under the mixed economic model of the semi-planned economy of the military sub-district and semi-market economy, a little investment is nothing. It is just to pay wages and bonuses to the production workers, and then give the manufacturer a certain profit. Anyway, the meat is rotten in the pot, and they get the money, and they also spend money in the military sub-district, and finally return to the military sub-district through various channels.

In order to have good heat dissipation, this processor is also packaged in metal.

This is just a way for the laboratory to strive for excellence. In fact, when the processor is put into production on a large scale, it will be replaced with a ceramic packaging to save costs. Besides, with such a little integration, how can the heat emitted be used for the metal shell? Ceramics are enough.

Shen Zhixiang was careful and pushed the box from the counter, but he didn't dare to hold it and hand it over, for fear that he wouldn't catch it and knock it over to the ground.

Guan Fei respected their work and took it with both hands and turned to his side.

"Where is the tester?" He glanced at it first.

With a quick scan of biological sub-brain, the processing defects on the surface of the chip cannot escape his ignorant eyes.

I have to say that Shen Zhixiang and the others really regarded this batch of chips as treasures. Each one was extremely exquisitely made, shining brightly under the light, like a work of art.

The bright silver metallic packaging surface, the raised words "actuarial" and the marking of the sickle hammer are very eye-catching.

On the lower side, there is also a line of small words printed on "Defining the Semiconductor Research Institute of the Military Sub-district of the People's Army, Integrated Circuit Preparation Technology Center, 1980"!

Each chip has a number, from 001 to 092.

Shen Zhixiang and others found that Guan Fei glanced at the small words, and felt a little embarrassed and said embarrassedly: "Actually, we were just making fun of it. At the beginning, we just wanted to print the name of the institute..."

Several other researchers also smiled, their hands were raised involuntarily, and scratched the back of their heads through their heads.

Guan Fei stretched out his index finger and shook: "You did it right! For the collectives and individuals who contributed, we give material returns only as equivalent exchange for work. But we pursue spiritual goals that transcend material things, which is the biggest difference between us and Western capitalism. It is natural that you have made contributions and received commensurate honors. When it is officially put into production, we will keep this line of words so that more people can know who developed it! However, you also know that a large part of our products are exported to Europe and the United States, so this part of the People's Army in front must be removed. In the future, we will print the words "Military Division Semiconductor Research Institute, Integrated Circuit Preparation Technology Center".

He looked at Shen Zhixiang and others with joy, and shook his head gently.

If the first batch of chips are retained for decades, the number of 001s on it alone would be worth a lot of money. But it is nothing. It is just used for making things. When it is officially put into production, a batch of 001s will be produced, so that every scientific researcher and worker involved in the research and development will keep one as a commemoration. It is also a good idea.

Guan Fei smiled slightly, gently twisted up a chip, put it into the pins of a special test instrument, and read the current data of each pin according to the operating order.

This set of homemade testers in the military partition is very advanced. The signal is recognized by the internal processor and is automatically compared with the solidified database. The relevant parameters are immediately displayed on the strip LCD screen. Each time one is tested, an English word - pass, which means pass!

Unfortunately, the Chinese font library has not been made yet, and various instruments and equipment are still marked in English.

After solving the integrated circuits such as processors, memory, etc., we will seize the time to create a Chinese font library chip. Without a Chinese font library, it is difficult to compile it with a Chinese processor, which of course is not possible. After making the font library, we must redevelop the instruments and equipment of the Chinese operating panel to update the existing equipment in the military sub-district. As for the old ones, it depends on whether they want them in China or sell them in Hong Kong.

Guan Fei thought quickly in his mind, and handed all the movements in his hands to the biological subordinate brain.

The automation detector is very fast, with dense pins and dozens of internally cured commands, and the detection is completed in the blink of an eye. Although the Chinese command cannot be recognized and the LCD screen appears as garbled code, the words pass still indicate that the circuit identification is correct.

The ninety-two chips were all passed in just ten minutes.

Pass rate, 100%!

Seeing the last chip pass the inspection, Shen Zhixiang and others all showed joyful expressions and couldn't help but hug them together.

Although there are less than a hundred chips, it means that the military sub-district has its own processor manufacturing capabilities. In the future, there is no need to buy expensive chips from abroad, but can make them all by themselves!
Chapter completed!