Zhao Fu teams in research.
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Turn into bustling Beijing South central axis, entered a yard next to the China Academy of launch vehicle technology, was suddenly quiet a lot. Sycamore green, research building in picturesque disorder. Here, by the China Aerospace Science and Technology Corporation 772 Director Zhao Fu team developed the domestic CPU chip, was first used in a new generation on the Beidou navigation satellite. To this day, Zhao Yuan-fu and his team more than 10 years.
The Beidou aerospace-grade CPU chip made products has reached the international advanced level of performance. "In certain indicators of radiation resistance, more than foreign products, we also have an advantage. "Zhao Yuanfu said confidently.
A road
Core chips related to information security, to master core technologies can only take the road of independent research and development
Zhao Yuanfu is Jinxian, Jiangxi people, when he was a cowboy, he's been curious why transistor radio made a noise, when I was in College, he chose professional semiconductor physics and devices. In 1983, Zhao Yuanfu Huang Chang, a famous aerospace microelectronic technology in China under the guidance of study for a master's degree, began working in radiation technology, from then on, his anti-radiation technologies are increasingly recognizing the important role of national space development. "The core technology is unable to rely on others, which is the Foundation. "Zhao Yuanfu recalled.
Information security is a national strategy, the hardware support is the core chip. At present, the chip relies mainly on imports, chip in each of China's imports would cost more than 200 billion dollars, and the cost of imported oil. Chips for space applications, but also has the special properties of radiation. Because the space environment is extremely complex, massive space particle radiation can cause performance degradation on the stars and even failure, fatal blow to satellites.
"But in addition to the astronauts, who have not gone into space. "The problems that may be encountered in space on Earth make it clear that difficulties can be imagined.
Chips, common people use cell phones and other electronic products are known as "electronics industry". Chips used on spacecraft to withstand the test of the harsh space environment, because of their special needs are called "sectors". In 1996, Zhao Yuanfu got a chance to study abroad, after two years of study, he clearly saw the huge gap radiation technology at home and abroad. Foreign instructors to provide job opportunities, Zhao Yuanfu eventually chose to return home, for him, to return home without an answer, since the choice of developing "China chip" have to go to the end.
"This has been hailed as the brain and heart of the satellite guy, embodies the heart of China's space technology. "Zhao Yuanfu proudly said," in order to achieve autonomous control of a China Aerospace chip, no matter how difficult it is, we have got to do something. "
A major problem
Persist more than a decade, only to overcome design difficulties, low-cost development of anti-radiation chip
Anti-radiation to make aviation chip, what should I do? have a way in the past--to the circuit and put on thick "coat", but this would increase weight significantly; in addition, you can also try changing the manufacturing process, but such investment is huge. How to cost effectively develop anti-radiation chip and become puzzle scientists all over the world.
After his return in 1998, Zhao Yuanfu led the team to study the star component of radiation-resistant characteristics and causes of backward, in 1999, he offered a low-cost "reinforcement design" idea that reinforcement of integrated circuit technology developed by using only IC production lines for civilian use, design and non-manufacturing sectors will develop radiation space integrated circuits.
Thus, radiation-resistant difficulties moved to the chip design, and anti-radiation chip design is a global problem. Zhao yuanren team first started working for two or three years, never figure things out. In order to create highly reliable "China chip" anti-radiation chip 772 passes through the ground under simulated space radiation environment experiment and evaluation. To complete more of the radiation experiments, team members need to get vacuum sealed cans, replace just finished radiation testing samples to prepare for the next round of tests. And time radiation testing typically takes at least 24 hours, or even days uninterrupted. In order to test the "seamless", members of the team are hungry to eat instant noodles, sleepy floor, continuous watch dozens of hours, became the norm.
Firm, stick, stick to just quietly waiting for ten years in radiation technology, Zhao Yuan-fu and his team published more than 600 scientific papers in radiation technology, obtained more than 200 patents. Now, 772 has built a unique rad hard IC development platform in China.
A dream
To be independent not imitation, as life's work space, independent research and development can always find a way
"Look up at the stars, but also down to Earth." "The Chinese" shines in space, Zhao Yuan-fu and his team first select "the Crown Diamond"-central processing unit as a core research products for technical applications of radiation resistance.
Targeting early in development in our own research and international a new generation of space used on the CPU, rather than go the way of imitation, Zhao Fu thoughtfully, "we like out, having been upgraded CPU came out, generic products have no competitive advantage. "
The central processing unit, looking only the thumbnail size, but has a brain complex and fine. Due to the early stage of research and development, international a new generation of CPU and there is no practical products for aerospace, only general ideas and concepts, nearly everything from scratch. "Starting from our study on the anti-radiation technique of counting, since 15 years. Starting from this project, it is also ten years rubs a sword. "When you talk about the frustrations of the first China-made CPU development process, Zhao Yuanfu said light wind," the aerospace industry gathered a group of scientists, they have as their life's work space and perseverance, can always find a way out. " Liu Shuwei PK TV plus traditional and Internet
Zhao yuanren team developed the homemade CPU, not only for higher speeds, variable interface type more and more and more suited to different functional components of the satellite needs. "A domestic space with the CPU, not only to get the chip itself, to build ' chip + software + environment ' localization pattern. "" The Chinese ", Zhao yuanren rich a more profound consideration.
Therefore, "the Chinese" is getting better. Apart from the CPU, and data bus circuits on the Beidou, converters, memory, nearly 40 772 for the development and production of products, which is a satellite system for the first time used Chinese-made chips, for independent control of aerospace engineering and innovation development milestone. "Satellites in spite of complete. "Zhao Yuanfu smiled," only the establishment of independent and complete product system, can let the satellite high-reliability operation more secure. "
Not only that, 772 development of IC for Aerospace also received foreign orders. From the original "Introduction" to the present "go", Zhao Yuanfu looking forward to witness the important crossing of China Aerospace microelectronic development.
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