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Chapter 253 Leveled Technology Diffusion

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    Gao Zhen was stunned when he heard this. As an electronics undergraduate graduate with excellent academic performance, he was naturally no stranger to the Internet.  During their studies at the university, they also made their own network cards and network cables, wrote software, and built local area networks with their own hands under the guidance of teachers, gaining a deeper understanding of them.  The difficulty of network transmission does not lie in software such as coding standards, but in hardware deficiencies.  Take the adsl network technology that appeared in normal history as an example. Although research began as early as the 1980s, it was not until the early 1990s that it gradually began to be applied.  And the home ADSL network initially launched had a transmission rate of only 512kb. Then with the development of integrated circuit technology, the network went through many speed increases before gradually growing to 1m, 1.5m, and 2m, and was subsequently replaced by faster optical fiber networks.  disuse.  In the early version, the decoding chip solidified in an adsl modem had a manufacturing process standard of millions of components.  This only includes one channel. It can be achieved by splitting the receiver and decoder into two parts and placing them on two integrated circuits!  This is why the maximum decoding rate of modems in this era can only reach tens of kb, and most modems used by households, businesses, and even ordinary scientific research institutes only have a dozen kb.  Think about it, even the 26 processor, which represents the highest level of the microelectronics industry, can only reach the level of integrating 130,000 components. How can it be possible to produce a high-speed modem with a million-level integration level?  This is not about design, but about hard power!  In schools like Gao Zhen and others, students design their own circuit diagrams, write their own software, make their own masks, and tape out their own modulation and demodulation chips using three-micron process technology. The transmission rate can only reach 28 kilobytes.  , this is already the world's leading technology. If sold as a commercial chip, it can definitely find a place in Silicon Valley, where elites gather.  But the fat uncle in front of him from the Human Resources Department actually told him that the base area was building an information trunk line with a transmission rate of up to 200 g, which completely frightened him.  What is the concept of a two hundred gigabyte trunk line If calculated based on the real-time transmission rate of two megabits per user, this optical fiber trunk line can carry 100,000 users at the same time and connect with the maximum amount of data; if each user alone has  One megabit bandwidth can accommodate 200,000 online users at the same time; if it is reduced to 512kb, the number of simultaneous users can be as high as 400,000!  There are currently not even 400,000 people in the new city! ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? forward 512k bandwidth channel requires a 300,000-level chip, one-megabit bandwidth needs to reach 500,000-level, and two-megabit bandwidth will rise to 13,400,000.  At this point, his mind moved, and he immediately asked: "How much bandwidth is allocated to each computer?" "I heard from the technical staff of the construction team that we are a scientific research unit here, which is quite special, so each user can guarantee two megabits of bandwidth.  . Currently, we are temporarily allocated 200 computers, so the program control center only has 500 channels installed. However, after the initial equipment is installed, we can continue to increase the number of channels by adding base boards, and it is very convenient to expand the capacity.  He was very talkative and told him all the information he heard in detail.  Two trillion!  Gao Zhen felt a little dizzy.  Two megabits is a million-level chipset. If it is split into multiple chips, the speed will be greatly reduced when it comes to information exchange.  Therefore, the chip used in the decoder board is definitely in the millions!  He felt that the world in front of him was a little unreal.  When did the base master the manufacturing process of millions of integrated chips?  Since there is already such good manufacturing technology, why do schools still teach three-micron process technology? Even the Actuarial Type 1 integration level is only 60,000. I heard that the latest Actuarial Type 1 modification for game consoles has only improved the integration level.  To 150,000.  From the science and technology journals purchased in Hong Kong, this is already the highest integrated technology in the world. ?? Could it be that the base area obviously has integrated circuit manufacturing technology that far exceeds the current process level, but deliberately only produces lower-level chips for export?  The doubts in Gao Zhen's heart are exactly the facts.  At Guan Fei Private Research Institute, researchers have already completed higher-integration chip manufacturing under his guidance and summarized the detailed process flow, but it has not been promoted yet.  Of course, it has not yet reached the million level. It has only tripled the public technology level and reached 500,000 integration levels.  It¡¯s not that it¡¯s impossible to reach the million level, but it¡¯s just that the price/performance ratio is too low.  After all, the deeper the micro-machining technology, the higher the requirements for equipment. Before the manufacturing level has been greatly improved, the difficulty of manufacturing will increase exponentially, and the cost will be so high that even Guanfei cannot afford it.? The point.  "Don't say million-level, even 500,000-level, if all the integrated circuit production lines in the base area are not replaced, they can only be produced in small quantities by laboratories, and they are not yet worthy of large-scale promotion.  And the first production line was replaced with a new one less than a year after it was put into operation This is not how a prodigal is!  In Guan Fei¡¯s plan, advanced technology that is ten years ahead of the times is only kept in his personal laboratory.  After two years, it will be transferred to general scientific research institutes; after five years, it will continue to expand to precision manufacturing; after ten years, it will be fully popularized in all electronic companies.  ¡° In this way, it not only ensures technological leadership, but also causes disturbances from the outside world, thus endangering the base area¡¯s own security.  He speculated that other countries did the same.  Who doesn¡¯t have a few tricks up their sleeves?  Just like the domestic tradition of producing one generation, researching one generation, and pre-researching one generation, the American technology industry must have a similar generation replacement process.  He does not believe that the current top level of integrated circuit manufacturing in the United States is really only level 26 at 130,000. Maybe there is research on manufacturing integrated circuits at 500,000 level in some unknown secret research and development base laboratory.  , even if it is one million levels, it is not impossible.  He can be regarded as following tradition As for the two-megabit channel chip, it was exactly as Gao Zhen guessed. He split the circuit into multiple chips to achieve it.  Only scientific research institutes with frequent information exchanges and often involving various data calculation needs can enjoy this kind of super-standard treatment regardless of cost. Each computer in ordinary university laboratories can only be allocated one megabyte of bandwidth, and factories and enterprises can only  It is allocated 512 bandwidths, and ordinary home users can only be allocated 12 bandwidths.  In terms of the chips required for each channel, scientific research institutes need three 500,000-level decoding chips for each channel, universities need two for each channel, and factories and enterprises use exactly one chip for one decoding channel.  As for ordinary individual users, one chip corresponds to one decoding channel, but the modems they use cannot use 500,000-level high-performance chips. What is solidified inside them will be actuarial-level decoding chips.  .  This is also to avoid leaking secrets.  Computers in scientific research institutes, universities, and factories are all under protection, and switching equipment is the focus of care. Outsiders cannot see how many chips are used inside without opening the equipment casing, and it is even more difficult to steal them for reverse research.  More difficult.  But ordinary users cannot supervise it, and they do not need too high information transmission speed. A decoding rate of 12kb can be achieved with an actuarial first-class decoding chip.  Even though it has been reduced so much, ordinary users in the base area are still happy compared to foreign users, because what they use will be the fastest and most popular high-speed information network in the world!  Gao Zhen was worried. He followed Deng Rui to the end of the main road at the entrance. When he was about to reach the main office building of the institute, Deng Rui pointed to a milky-white steel shell building similar to a residential transformer group and said: "Look! This is us.  It is the switching equipment of the institute, supporting all data exchange work." Gao Zhen looked up and was shocked by its size.  This switching equipment group is a square cube, three meters long on each side, two stories high, and the outside is completely sealed by welding.  There is only a small door facing the main entrance of the institute, which is probably used for internal maintenance and equipment replacement. However, the small door is tight at this time and cannot be pushed open to see the internal situation.  The small door is facing the main road and is within the observation field of the guard. It would be difficult to break it and sneak in.  There was a buzzing sound of equipment running in the building, which sounded a bit like the sound of air conditioning.  He had seen this small building-like building outside, but at the time he thought it was where security guards lived. Only now did he realize that it was a fiber channel switching equipment unit.  ¡°It¡¯s so big!¡± Gao Zhen exclaimed sincerely, then nodded.  Although his professional habits made him still have doubts about the decoding chip used in the base and what kind of process it was, seeing such a large equipment operation room cleared half of his doubts.  Even if it uses 150,000 integrated chips, such a large building can still accommodate it Probably.  Gao Zhen was new here and did not dare to wander around. He followed Deng Rui into the office building and stayed in the personnel office on the third floor. He found newspapers and magazines from the bookshelf and read them to pass the time.  The newspapers of the institute include, in addition to the highly political newspapers and periodicals such as the Jiding Organ Newspaper, Jiefang Daily, and Jiding Worker's Daily, which are self-run in the base area, there is also the Metro Daily, which is closer to people's lives and more entertaining.  Besides, this is scientific research after all.Although it is the Human Resources Department, it also subscribes to science and technology newspapers and magazines such as Science and Technology Times and Science and Technology Weekly.  Most of these science and technology magazines are regularly sent back from Sagitar Trading's branches in various countries, including science and technology newspapers and periodicals in Europe, America, East Asia, and even Eastern Europe. The most authoritative and representative science and technology research and development progress news are selected by the editorial department and translated into Chinese.  Popular science and technology journals published.  The largest number are professional journals, whether they are comprehensive science and technology journals such as Science, Nature, and Proceedings of the Royal Society of London, or journals of the American Statistical Association, London Mathematical Bulletin, and Fluids that have more in-depth selections.  "Journal of Mechanics", "Physics Review Letters" and other professional publications are all available here, with more than one or two hundred types!  Most publications are published one or two months later than normal. This is also because in order to translate them into Chinese, the translation version has to be postponed.  There are also some tomes that cannot be translated in time, so we have to directly purchase the original version and display it for researchers who are fluent in foreign languages ??to read.  Of course, these publications are all pirated copies, and they are also official pirated copies!  In order to help scientific researchers keep abreast of global scientific and technological trends and track the latest scientific and technological research, the base has hired hundreds of translators from China who are proficient in foreign languages ??to translate various foreign language journals every month, and then print and publish them on a large scale.  In addition to requiring mandatory subscription by various scientific research institutes, universities, and industrial and mining enterprises, the publications are also sold to the outside world at low prices, making the base area well-informed of global science and technology trends even though it is cramped in the mountains.  However, the original publisher and author did not receive a penny of royalties.  Recently, Xinhua Bookstore in China has also sent a working group to the base to join in this officially supported large-scale piracy of intellectual property rights.  Mobile phone users please visit http://m.piaotia.net
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