中国太阳能级单晶硅产业技术现状和发展.pptVIP

Sunnergy Co. Ltd 内蒙古晟纳吉 The Status and Future of Solar Grade Mono-Crystalline Silicon Industry in China中国太阳能级单晶硅的技术现状和发展 By Dr. James J. Zhou (周俭)Inner Mongolia Sunnergy Co., Ltd.内蒙古晟纳吉光伏材料有限公司 目录Outlines 影响单晶的各项因素The Universe of Crystal 国内单晶硅产业的现状 Current Status of Mono-crystalline Silicon Industry in China 国内单晶硅产业面临的挑战 Challenges to Chinese Mono-crystalline Silicon Industry 设备与技术 Crystal Equipment and Technology 耗材的供应和质量 Supply of Consumables 材料标准 Material Standards – Poly and Wafers 检测仪器及检测标准 Analytical Equipment and Test Standards Universe of Crystal 单晶炉 Furnace Furnace - Hardware Furnace - Software Universe of Crystal Hot Zone Hot Zone is The Key technology in the single crystal growth process. A well designed HZ provides the foundation for a good process, which controls crystal intrinsic property A well designed HZ also provided energy efficiency, provides high yield, and longer HZ lifetime, all are major cost effects Generally HZ in China has been improved since 2000, thanks to our new design and some designs come with the used equipment. Power consumption has dropped from 95kw(18”) to 55-75kw. However, there are still a lot to improve. Crystal should be pulled around 35kw. Hot Zone - Material Hot Zone Material Insulation Most insulation are soft felt while industry standard is RGF. RGF in China is still in trial bases. Fundamental analysis has not been finished in terms of its thermal and mechanical properties. CFC CFC material in China has seen good improvement since a couple years ago. Still facing some quality issues such as flaking. Universe of Crystal Crucible The major problems with Chinese made crucibles are deformation, silicon leak, quartz flake off, etc, greatly reduces the ZD yield. With Momentive moving its quartz crucible facility to Wuxi, the quality of the crucible should improve quite bit. However, without coating, Momentive quartz may not be the best. The big guys such is yet to come. Chinese vendor still have some time but need to