发明名称 |
CERIUM BASED POLISHING MATERIAL AND RAW MATERIALS THEREFOR |
摘要 |
<p>A cerium-based polishing material which comprises cerium oxide (CeO2), lanthanum oxide (La2O3) and neodymium oxide(Nd2O3), as rare earth element oxides, and also fluorine (F), characterized in that it has a proportion in weight of the total rare earth elements in terms of oxide (TREO) of 90 wt % or more, a proportion of the weight of cerium oxide in the weight of the total rare earth elements in terms of oxide (CeO2/TREO) is 50 to 65 wt %, and a proportion of the weight of neodymium oxide in the weight of the total rare earth elements in terms of oxide (Nd2O3/TREO) is 10 to 16 wt %. The cerium-based polishing material has excellent polishing characteristics such as the reduction in the generation of flaws and also exhibits enhanced polishing speed.</p> |
申请公布号 |
WO2005000992(A1) |
申请公布日期 |
2005.01.06 |
申请号 |
WO2004JP04407 |
申请日期 |
2004.03.29 |
申请人 |
MITSUI MINING & SMELTING CO., LTD.;KOBAYASHI, DAISAKU;UCHINO, YOSHITSUGU;YAMASAKI, HIDEHIKO |
发明人 |
KOBAYASHI, DAISAKU;UCHINO, YOSHITSUGU;YAMASAKI, HIDEHIKO |
分类号 |
B24B37/00;C01F17/00;C09K3/14;(IPC1-7):C09K3/14 |
主分类号 |
B24B37/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|