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来自维基百科,自由的百科全书
微下拉晶體成長法(Micro-pulling-down,簡稱μ-PD或微下拉法)是以連續的熔融餵料通過坩堝底部一微小通道來成長晶體的技術。熔融餵料抵達坩堝下方的固液兩相接面後會連續不斷地進行凝固。在穩定的操作情況下,液相熔融料和固相晶體會各自以等速被往下拉,但兩者的向下速度通常不會一樣。
微下拉法已經發展出一套標準晶體成長程序,步驟大致如下:
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