Changchun airport to Exhibition Center
or take an airport bus,
the bus passing by the Convention and Exhibition Center doesn't cost much,
more than 50 yuan,
thank you for your adoption
if you take a taxi for an hour, you'll need 200 for more than 100
airport bus, get off at Rainbow square or the terminal and take a taxi for one hour, 50 yuan.
bus line: no.915 → Metro Line 2, the whole journey is about 13.4km
1. Walk about 460m from Hunan International Convention and Exhibition Center to window of the world station
2. Take no.915, pass 11 stops to Wanjiali Square Station
3. Walk about 180m to Wanjiali Square Station
4. Take Metro Line 2, pass 6 stops to Wuyi Square Station
5 Walk about 410 meters to Q plus Changsha 258 apartment
there is another reason why we don't see many domestic chips, the main reason is the shipment volume. Because the cost of manufacturing chips is very high, the cost of the first chip with an area of 100 square mm in the 40nm process will be one million US dollars, that is to say, if the chip can not reach the annual shipment of one million chips, it will have no value. That is to say, if you make a chip, but you can't sell it, the main problem is that there is a big gap with the performance of foreign countries
at present, there are also manufacturers dedicated to making ordinary PC processors in China, and they are strongly supported by the state (for national security reasons), so they still have a market to sell. I believe you can see it around the end of 2014.
It is said that the US Department of Commerce recently banned US enterprises from selling parts to ZTE. As soon as the news came out, it aroused great public concern. One of the focuses is chip technology
How important is 
chip? Do you still remember the Snowden incident, when there was a general question: why can the United States monitor and monitor the world? The reason is that the information network technology of the United States is extremely powerful, and the whole world highly relies on the information network technology of the United States, of which chip is the key technology. No matter how advanced and huge the equipment is, its data information is stored in a small chip. But the chip with infinite power has a fatal weakness, that is, its "life gate" is in the hands of the designer, commonly known as the "back door" in the instry. If you don't master its key core technology, then the "back door" left by the designer will expose all your secrets to people instantly
In fact, before the "ban" of ZTE, the US government's control over core chip technology has never stopped. On April 9, 2014, the U.S. Department of Commerce issued an announcement, deciding to reject Intel's application to sell Xeon chips to China's National Supercomputing Center in Guangzhou to upgrade the tianhe-2 system. At that time, the reason of the US Department of Commerce was that the "tianhe-2" system using two Intel microprocessor chips and the earlier "Tianhe-1" a system "were" believed to be used for nuclear explosion simulation ". This reason is unconvincing, because all instry experts believe that no matter from the perspective of security or confidentiality, "tianhe-2" can be directly used for nuclear explosion simulationthe US side also gave reasons for this "ban" of ZTE: the Chinese enterprise violated the agreement with the US government and is still selling US technology to Iran, a country under US sanctions. However, even the American media also saw the farfetched The New York Times believes that the blocking of ZTE is an inevitable result of Trump's intensifying trade war with China, and the fundamental reason for his blocking of ZTE is to crack down on the "made in China 2025" plan planned by the Chinese government and prevent China from using American technology to surpass the United States. Compared with the trade war of general procts, Trump's technical control is obviously easier to obtain domestic support The Wall Street Journal pointed out to the point that, compared with fighting a trade war with China, this kind of direct restriction or even blocking of investments and acquisitions that will make China profit in the competition with the United States will make it easier for trump to obtain the support of American public opinion - especially in the instries in the United States that have begun to be surpassed by China, There will be a lot of support for Trump's action against China
since the core technology can not be bought, and relying on imports will lead to being controlled by others, there is no other way except independent research and development, and graally realize the localization of high-end chips. So what is the current situation of chip manufacturing in China? Huang Qingqiao, an associate researcher at the Academy of history of science and culture of Shanghai Jiaotong University, pointed out that chips can be divided into high-end, medium-end and low-end. China's chip technology and proction process as a whole can not be compared with the United States, but in the proction of low-end chips, it can be completely self-sufficient, which is also a strong support of made in China. The main problem lies in the instry and technology of high-end procts. China's demand for medium and high-end chips basically depends on imports. According to the yellow book on innovation competitiveness of G20 countries issued by the development research center of the State Council, China's key core technologies are highly dependent on foreign countries, and 80% of its chips are imported
Where is the difficulty in developing China's chip instry? Huang Qingqiao pointed out: first of all, China's chip instry started late, and its core technology is controlled by others. The IC instry has a large gap with the world's advanced level in core technology, design, manufacturing process, instrial scale, leading enterprises, etc. Generally speaking, the chip design level of China's chip instry is basically the same as that of the world. There is a gap of four to five years in the level of packaging technology, and the gap of manufacturing technology is about three and a half years. Secondly, the chip instry itself has the characteristics of high investment, long-term development and long return cycle, and the investment of ordinary chip manufacturing enterprises should reach tens of billions. Therefore, it is difficult for ordinary enterprises to bear. Moreover, the development of the chip instry follows Moore's law, and the technology updates very fast. And every update is a huge investment. This instry characteristic of large investment and relatively long return cycle makes the chip instry become a high-risk instry, and general social capital is reluctant to enter. This kind of high risk makes the chip instry have the instry characteristics of "big Evergrande", which is easy to form a natural monopoly, and it is very difficult for the later to develop. This also means that China's "strong core" road is bound to be a protracted war
now the highest level in the world is the United States and Japan
Japan annually proces 70% of the world's high-density integrated circuit chips
I remember that my Changhong TV broke down a few years ago, and I took it apart when I asked someone to repair it, As a result, all the integrated circuits are written with Toshiba......
we have limited imitation ability......
Loongson, you know, is the CPU designed by China itself
at present, the low-end procts are all proced by ourselves, while the high-end procts are all manufactured by France and Italy semiconctor
no way, even if we design it, we can't make it....
as for you, you say that you don't pay enough attention to it, or you don't have a sense of innovation
these are your own problems. Rome wasn't built in a day, and you can't make a fat man out of a mouthful.
of course, many people in power also have your mentality, and want to surpass the UK and catch up with the US overnight.
but it's unrealistic. We started too low on this high-tech electronic proct, It's only ten years since it's been developed.
it's just a dream to catch up with the highest international level overnight
we have to eat one bite at a time. We can't even make the drawings that people give us at our current level. It's like you can proce world-class things on your own right now. It's a bit too much...
in fact, the country attaches great importance to this aspect, otherwise there won't be a fake incident in Shanghai two years ago mentioned by a friend upstairs, and get a moto chip, He polished it for a while, changed the label and claimed to be a major scientific research achievement! But Loongson is the best proof. We are working hard and making progress. It just takes time. We all have to be patient!!!
do you have the ability?