In a recycling process, the homogeneity of glass cullet decreases and the quality of the recycled glass is diminished. To solve this problem, the present involves using a fluorescent X-ray analyzer to analyze the glass composition of display substrates prior to crushing, and thereby identifying glass of the same composition, converting the same into cullet, and recovering the glass.

 
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> Semiconductor integrated circuit comprising read only memory, semiconductor device comprising the semiconductor integrated circuit, and manufacturing method of the semiconductor integrated circuit

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