Bearing disc for wafer double-face grinding and polishing machine, grinding and polishing machine of wafers and grinding and polishing method for wafers
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Direct silicon core drawing method using product material
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Cutting device for tabular crystal
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High-frequency coil for drawing of silicon single crystal rods by using zone-melting method
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Welding method of sapphire wafer
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High-frequency coil and drawing-hole layout for simultaneously drawing seven-to-fourteen silicon cores
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Device for raising crystallization velocity of silicon core during drawing of silicone core
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Silicon core drawing furnace chamber
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Seed crystal clamping head for rotating seed crystals
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Silicon core pulling method for rotating seed crystals
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A crystal growth temperature of the gradient control apparatus and method
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High-frequency coil for producing nineteen or twenty molten silicon cores
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Hot melting-resistant structure for guide steel wire of silicon core furnace
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Digging equipment
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High-frequency coil provided with auxiliary heating cylinder
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Combined high-frequency coil
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High-frequency coil with drop-shaped holes for producing fifteen or sixteen silicon cores
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High-frequency coil for producing 14 or 15 sticks of silicon core liquid
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High-frequency coil for producing ten or eleven silicon cores
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High-frequency coil for producing seven or eight silicon cores
