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As the preschool education specialty cultivates preschool teachers with professional skills, its teaching quality concerns the establishment of China's preschool teacher teams. Especially, the practical teaching for preschool education specialty relates to the preschool teachers' ability and quality. Therefore, it is required to construct the practical teaching quality assurance system for preschool education specialty in colleges and fully enhance the teaching quality and efficiency of preschool education specialty in colleges of our country. This paper analyzes the importance and current situation of practical teaching for preschool education specialty in colleges and discusses how to construct the practical teaching quality assurance system for preschool education specialty in China's colleges.

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A high performance manufacturable 0.7pm triple metal technology has been developed on SGS-Thomson's HCMOS4 twin-well CMOS process. Improvements in metal processes to obtain reliable barrier layer and excellent step coverage make it possible to use A1 alloy in all three metal interconnects. Good reliabilities on device hot carrier degradation, metal electromigration and dielectric breakdown were achieved. The process has been succcssful in fabricating a gate array product with greater than 30% yield for 220Kmi12 die size.