Sino-american Silicon Products Inc.

Sung Lin Hsu

Wen-Ching Hsu

Wen-Huai Yu

Yu-Min Yang

I-Ching Li

Cheng-Jui Yang

Ming-Kung Hsiao

Bo-Kai Wang

Kuo-Wei Chuang

Huang Wei Lin

Yuan Hsiao Chang

Chung-Wen Lan

Hung-Sheng Chou

Yu-Ting Wong

A polycrystalline silicon wafer is provided. The polycrystalline silicon wafer, includes a plurality of silicon grains, wherein the carbon content of the polycrystalline silicon wafer is greater than 4 ppma, and the resistivity of the polycrystalline silicon wafer is greater than or equal to 1.55 &#x3a9;-cm.

Polycrystalline silicon column and polycrystalline silicon wafer

A polycrystalline silicon column is provided. The polycrystalline silicon column includes a plurality of silicon grains grown along a crystal-growing direction. In the crystal-growing direction, the average grain size of the silicon grains and the resistivity of the polycrystalline silicon column have opposite variation in their trends, the average grain size of the silicon grains and the oxygen content of the polycrystalline silicon column have opposite variation in their trends, and the average grain size of the silicon grains and the defect area ratio of the polycrystalline silicon column have the same variation in their trends. The overall average defect area ratio of the polycrystalline silicon column is less than or equal to 2.5%.

Present disclosure provides a multicrystalline silicon (mc-Si) brick, including a bottom portion starting from a bottom to a height of 100 mm, a middle portion starting from the height of 100 mm to a height of 200 mm; and a top portion starting from the height of 200 mm to a top. A percentage of incoherent grain boundary in the bottom portion is greater than a percentage of incoherent grain boundary in the top portion. Present disclosure also provides a multicrystalline silicon (mc-Si) wafer. The mc-Si wafer includes a percentage of non-&#x3a3; grain boundary from about 60 to about 75 and a percentage of &#x3a3;3 grain boundary from about 12 to about 25.

Multicrystalline silicon brick and silicon wafer therefrom

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Hsinchu, Taiwan

Sung Lin Hsu