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POLISHING CARRIER, METHOD FOR POLISHING GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIUM, AND METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIUM
POLISHING CARRIER, METHOD FOR POLISHING GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIUM, AND METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIUM
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机译:抛光载体,用于磁记录介质的玻璃基质的抛光方法以及用于磁记录介质的玻璃基质的制造方法
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摘要
PROBLEM TO BE SOLVED: To provide a polishing carrier that can prevent an upper surface plate from sticking to a polishing pad, without causing a damage to the polishing pad during a polishing process.;SOLUTION: The polishing carrier is used for polishing a glass substrate for magnetic recording medium, wherein the polishing carrier has two main flat surfaces of a first surface and a second surface, and the surface roughness (Ra) of a first surface is larger than that of a second surface, with the difference in 3-15 μm. A method for polishing the glass substrate for magnetic recording medium, and a method for manufacturing the glass substrate for magnetic recording medium, are also provided.;COPYRIGHT: (C)2013,JPO&INPIT
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