Study on Slurry of SiC Crystal Substrate (0001) C Surface in CMP Based on Silica Sol (SiO2 Abrasive)
Keyword(s):
SiC single crystal substrate has been become an indispensable substrate material in the field of semiconductor lighting. But, there is no report on the commercial slurry of chemical mechanical polishing (CMP) SiC substrate. In this paper, according to orthogonal design, the composition selection and optimization of CMP slurry based on silica sol (SiO2 abrasive) had been done in CMP SiC crystal substrate (0001) C surface by tests. The CMP slurry based on silica sol for SiC crystal substrate (0001) C surface had been obtained. According to the CMP test results, the material removal rate (MRR) is about 15nm/min and the surface roughness Ra is about 0.2nm.
2013 ◽
Vol 797
◽
pp. 261-265
◽
2014 ◽
Vol 1027
◽
pp. 235-239
◽
2014 ◽
Vol 1027
◽
pp. 213-216
2014 ◽
Vol 1027
◽
pp. 167-170
◽
2011 ◽
Vol 279
◽
pp. 287-290
◽
2015 ◽
Vol 727-728
◽
pp. 244-247
Keyword(s):