The polycrystalline silicon sheets with columnar grain structure are made by controlling the solidification processing of the silicon sheets.
通过对硅片凝固过程的控制，制得２０ｍｍ×２０ｍｍ×１，２ｍｍ具有柱状晶组织的多晶硅片，表面平整，晶粒平均尺寸０。
