Shortly after the mass production of the low-power LED chip of the crystal energy photoelectric silicon substrate, the research once again encountered difficulties. On the silicon substrate high-power LED chip, the silicon-based patterning technology began to appear “powerlessâ€, and the epitaxial film caused the deformation due to the turtle. The problem of cracking has reappeared, chip manufacturing technology is not stable enough, and the pass rate is relatively low.
At the most difficult time, a group of enthusiastic young people who returned from studying abroad joined Jingneng Optoelectronics to complete the “upgrading and replacement†of silicon substrate LED technology with a new idea. Crystal Energy has achieved global scale of silicon substrate LED technology. Industrialization. Sun Qian is one of the young people who returned from studying abroad.
The road to "learning tyrants"
The first time I saw Sun Qian, the big boy after the 80s did not have the imagination of the reporters, and the laughter was slightly embarrassing.
Sun Qian graduated from China University of Science and Technology one year in advance in 2002. He obtained a bachelor's degree in materials physics and a bachelor's degree in computer science and technology engineering. He was awarded the president of the National Science and Technology University Award, Guo Moruo, and in the same year, he was recommended to the Chinese Academy of Sciences for the first place. After studying for a master's degree in 2005, he entered Yale University for further study. He obtained his Ph.D. in four years and won the Becton Award for the highest award at Yale Institute of Technology. In 2011, he was selected into the first batch of national “Youth Thousand Talents Program†and joined the Chinese Academy of Sciences. Suzhou Institute of Nanotechnology and Nano-Bionics (hereinafter referred to as Suzhou Institute of Nanotechnology) and Jingneng Optoelectronics; in 2012, it was selected as the “Double Talents†program in Jiangsu Province and “Jinji Lake Double Hundred Talents†in Suzhou Industrial Park, and won national excellence in 2015. Funded by the Youth Science Foundation, he won the first prize of National Technology Invention in 2016. He is currently a researcher and director of the Suzhou Institute of Nanotechnology of the Chinese Academy of Sciences, and a member of the overall expert group of the “Third Generation Semiconductor Materials†project of the Ministry of Science and Technology, and concurrently the vice president of research and development of Jingneng Optoelectronics. Look at the resume of Sun Qian, and properly read a "study".
Recalling the past, this farmer’s child from Nantong said that he first stepped into the semiconductor gate to “make a good jobâ€. When I graduated from undergraduate in 2002, because my family was relatively poor, Sun Qian could only bury her dreams abroad and chose to be sent to the Chinese Academy of Sciences for research. "The choice of semiconductors is because this profession is good to find a job after graduation, and quickly earn some money to subsidize the family." Sun Qian laughed and said. Sun Qian began to study the gallium nitride film with the instructor Yang Hui at the Institute of Semiconductors of the Chinese Academy of Sciences, which also laid the foundation for the subsequent stepping into the silicon substrate LED.
A class reunion once again rekindled Sun Qian’s dream of going abroad. “There are more than 2,000 US dollars of scholarships per month. I can’t earn so much in full-time jobs in China. I can earn a degree by studying abroad and broaden my horizons.†Sun Qian decided to go abroad and passed GRE in one month, two weeks. Tested TOEFL. "If you go abroad, you will definitely not go to Yale, but when you applied for the school, you found that only the Yale in the US TOP10 university can only do Yalu, and you can only go to Yale."
At the tutor's request, Sun Qian did not attend the master's graduation ceremony and started working in the laboratory three months ahead of Yale.
Guy
When it comes to GaN-based LEDs on silicon substrates, the "maniac" in the bones begins to be written on the face of this sly boy.
"In the United States, GaN has begun to decline." When he first arrived in the United States, Sun Qian was poured a cold water by a doctoral tutor. Because problems such as lattice mismatch and thermal mismatch have not been solved for a long time, the academic community has begun to abandon the silicon substrate and flock to the sapphire substrate.
But Sun Qian decided to challenge this problem. Through systematic research and review of data, Sun Qian proposed a solution to solve the “crack†through stress control. But this program is not optimistic about the mentor. "This is impossible. Others have not succeeded for so long. You can't solve this problem." But Sun Qian is quite paranoid, continues to experiment, and in principle and Great progress has been made in the mechanism, and the program has obtained preliminary verification.
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