Sino-american Silicon Products Inc.

Ya-Lu Tsai

Wen-Ching Hsu

Chung-Wen Lan

Wen-Huai Yu

Sung-Lin Hsu

Wen-Chieh Lan

Bruce Hsu

Suz-Hua Ho

Kimsam Hsieh

Chao-Kun Hsieh

In a crystalline silicon formation apparatus, a quick cooling method is applied to the bottom of a crucible to control a growth orientation of a polycrystalline silicon grain, such that the crystal grain forms twin boundary, and the twin boundary is a symmetric grain boundary, and the crystal grain is solidified and grown upward in unidirection to form a complete polycrystalline silicon, such that defects or impurities will not form in the polycrystalline silicon easily.

Crystalline silicon formation apparatus

An approach is provided for a method to manufacture a crystalline silicon ingot. The method comprises providing a mold formed for melting and cooling a silicon feedstock by using a directional solidification process, disposing a barrier layer inside the mold, disposing one or more silicon crystal seeds on the barrier layer, loading the silicon feedstock on the silicon crystal seeds, heating the mold to obtain a silicon melt, and cooling the mold by the directional solidification process to solidify the silicon melt into a silicon ingot. The mold is heated until the silicon feedstock is fully melted and the silicon crystal seeds are at least partially melted.

Method of manufacturing crystalline silicon ingot

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Hsinchu, Taiwan

Ya-Lu Tsai