发明名称 |
MULTI-WIRE SAW |
摘要 |
<p>A multi-wire saw according to the present invention cuts a workpiece while supplying a slurry containing an alkali or mixed acid a cutting interface between the workpiece and a wire, and includes: a storage tank with a heating mechanism for storing and heating the slurry; a thermal insulating pipe for transporting the slurry sent with a pump from the storage tank with a heating mechanism to a position before a position where the wire is incorporated into the workpiece, while keeping the slurry at a predetermined temperature; a thermostat for keeping a temperature in a vicinity of the workpiece fixed to a stage at the predetermined temperature; and a wire heating mechanism for heating the wire to the predetermined temperature. Consequently, the cutting resistance decreases during cutting machining of a silicon ingot, and the variation in the cutting resistance also decreases, whereby a high-quality wafer can be obtained at a high efficiency and a low cost.</p> |
申请公布号 |
EP1685927(B1) |
申请公布日期 |
2013.04.10 |
申请号 |
EP20040792847 |
申请日期 |
2004.10.22 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
KAWASAKI, TAKAFUMI;TSURUTA, HIROZOH;NISHIDA, HIROKAZU;MIMURA, SEIICHI;HAMAYASU, MASAYUKI;TOMINAGA, HISASHI |
分类号 |
B28D5/00;B24B27/06;B24B57/02;B28D5/04;H01L21/304 |
主分类号 |
B28D5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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