What time is it? China’s semiconductor gas sensor industry broke the shackles and began to develop at a rapid pace!

1, Definition of semiconductor gas sensor:

Sensitive materials are mainly made of semiconductor materials for gas sensors, the complete gas sensor by the sensitive materials, device architecture and packaging of three parts. Semiconductor gas sensitive materials that have been commercially available include metal oxide semiconductors represented by SnO2 and ABO3, and polymer organic semiconductors represented by polyaniline and phthalocyanine.

2, semiconductor gas sensor development history

The development of semiconductor gas sensors can be traced back to 1931, P. Braver, etc. found that the conductivity of CuO with the adsorption of water vapor and change. 1948 J. Gray found that the CuO film at about 200 degrees Celsius there is a gas-sensitive. 1962, Japan’s Yamada Sheng, Aoyama Tetsuro, etc. ZnO, SnO2 sensitive properties of the groundbreaking research; international semiconductor gas sensors to achieve the commercialization of the starting point from 1962 to 1966, the first time to realize the development of semiconductor gas sensors. The starting point for commercialization of semiconductor gas sensors originated from the invention of SnO2-based semiconductor gas sensors by Shoji Taguchi in 1968; in 1972, researcher Wang Zhongji of Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, developed and completed the direct thermal SnO2-based semiconductor combustible gas sensors. With this as the source, the scientific and technological achievements and subsequent research directly or indirectly in the Harbin Transistor Factory, Zhengzhou Transistor Factory, Taiyuan Electronics Factory, Kunming Chunguang 4322 Factory took root.

Throughout the 1980s to the mid-1990s, is the rapid development of domestic semiconductor gas sensors, the first golden period, the academic community recognized the leader of the “North Gas Sensitive” Jilin University, Sun Liangyan, “South Gas Sensitive” University of Science and Technology of China Shen Yusheng, the two old man Sensitive Branch of the Chinese Institute of Electronics led by the “gas, moisture-sensitive professional committee” flourished, really created an “innovative, free, inclusive and open” academic atmosphere; industry industry-wide in the domestic range hoods under the huge demand for supporting the promotion of annual sales of The annual sales volume of the whole industry has once reached 10 million units/year. The whole industry relies on the only application scenario survival and development model for the Harbin Transistor Factory, Zhengzhou Transistor Factory, Taiyuan Electronics Factory, Kunming Chunguang 4322 Factory’s bankruptcy buried a huge hidden trouble, to the end of the 1990s, the above four enterprises bankruptcy.

In 1998, the establishment of Hanwei Electronics is a landmark event in the domestic semiconductor gas sensor industry, the significance of which lies in the industry in the background of the Great Depression for the future development of the domestic gas sensor industry sowed the seeds of prosperity, but also in the domestic gas, moisture sensitivity of the academic activities of the ten years in the low, Hanwei Electronics and the “gas, moisture sensitivity professional committee” has always stayed together. Hanwei Electronics and “Gas and Humidity Sensors Committee” have always been inseparable from each other to tide over the difficulties together.

In 2009, the listing of Hanwei Electronics on the Growth Enterprise Market is the second milestone, which not only led to the prosperity of the semiconductor gas sensor field, but also led to the prosperity of the entire gas sensor field, and even the entire sensor industry.

In 2019, Hanwei Technology Group completed the merger and integration of Taiyuan Tengxing, and the market sales scale of the two brands of semiconductor gas sensors, Winsen and Tengxing, of Weisheng Technology, comprehensively surpassed that of Figaro in Japan.

These outstanding contributors in the field of semiconductor gas sensors:

Researcher Zhongji Wang from Changchun Institute of Applied Chemistry, Prof. Liangyan Sun from Jilin University, Prof. Yusheng Shen from University of Science and Technology of China, Prof. Baofu Quan from Jilin University, Prof. Aqiang Xu from Shanghai University, Prof. Geyu Lu from Jilin University ……

Mr. Ren Hongjun, Chairman of Hanwei Technology Group, Mr. Wang Xiaoping, Senior Engineer of Taiyuan Tengxing, Senior Consultant of Hanwei Technology Group, Mr. Zhang Kaiwen, Senior Engineer of Hanwei Technology Group, Mr. Ma Bingzheng, Senior Engineer of Hanwei Technology Group…

Thanks to these people who have made outstanding contributions to the development of science and technology in China, please remember these quietly dedicated research workers!