0243 - New Projects And Products In China's Industry. Diffusion process of ...Front

New Projects And Products In China's Industry. Diffusion process of the production line of the integrated circuit with big round silicon 75 mm in diameter made by the Shanghai No.7 Radio Factory. It is used to produce instruments of large scale integrated circuit. It indicates that the technique of transistor production in China has made further progress. Photo by Yaang Putao