マルチ・ワイヤソー切断用水溶性クーラントの開発  φ400mmシリコンインゴットの切断に関する研究 1

書誌事項

タイトル別名
  • Development of Water-Soluble Coolant for Multiwire Saw Slicing. Study on 400mm-Diameter Silicon Ingot Slicing. (1st Report).
  • マルチ ワイヤソー セツダンヨウ スイヨウセイ クーラント ノ カイハツ ファイ 400mm シリコンインゴット ノ セツダン ニ カンスル ケンキュウ ダイ1ポウ
  • Study on 400mm-Diameter Silicon Ingot Slicing (1st Report)
  • φ400mmシリコンインゴット切断に関する研究 第1報

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抄録

This paper presents the constituent features of the newly developed water-soluble coolant for the multiwire saw slicing of 400mm-diameter silicon ingots. Although the water-soluble coolant has long been awaited for its intrinsic merits over the conventional mineral oil-based coolants, it was not adoptable to the large diameter slicing for its poor ability to suspend abrasives in the slurry. This newly developed coolant is the first successful water-soluble coolant to slice 400mm-diameter ingots, and has the following constituent features; (1) Polypropyleneglycol (PPG) is chosen as a base of the coolant which has no peculiar odor, and has a good bio-degradability. (2) The coolant contains approx. 20wt% of water with chemical affinity to bentonite, and gives non-flammability and non-evaporative characteristics. (3) In order to maintain the viscosity level and the good suspension of abrasives, the coolant contains 3 viscosity adjusting additives; bentonito (thixotropic rheology), cellulose (rheopectic rheology), and synthetic mica (constant viscosity).

収録刊行物

  • 精密工学会誌

    精密工学会誌 66 (6), 912-916, 2000

    公益社団法人 精密工学会

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