Ingot mold for silicon ingot and method for making the same
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United States of America Patent
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Oct 14, 2014
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app pub date -
Jan 27, 2010
filing date -
Jan 28, 2009
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Abstract
A method for forming a mold comprises forming a body by kneading a ceramic powder comprising a silicon nitride powder and a first binder solution; forming a slurry by adding a second binder solution to the body; and forming a release layer by attaching the slurry to a surface of a mold base. A method for manufacturing a solar cell element comprises forming a silicon ingot by solidifying a silicon melt in the mold obtained by the above-described method for forming a mold; slicing the silicon ingot into substrates each having a predetermined thickness; forming a diffusion layer on each of the substrates; and forming an electrode on a surface of the diffusion layer.
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