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Sapphire (single crystal of Al2O3) is being used extensively as a substrate for III-V nitrides and for many other epitaxial films.

MgO is an excellent single crystal substrate for thin films of Ferro magnetic, Photo-electronic and high Tc superconductor materials. Across uses a special arc melting method to grow high purity MgO crystal in sizes up to 2”x2”x 1” at lower cost, and employs CMP method to prepare high quality substrates with atomic level smoothness. We also provides MgO substrate with as-cleaved surface. For some applications, as-cleaved MgO substrate gives better epitaxial thin film due to its more favorable surface conditions.

SrTiO3 single crystal provides a good lattice match to most materials with Perovskite structure. It is an excellent substrate for epitaxial growth of HTS and many oxide thin films. SrTiO3 single crystal has also been used widely for special optical windows and as high quality sputtering target. We have the full production line to manufacture first the high purity SrTiO3 powder, then the single crystal boules and finally the epi-polished substrates in many sizes. This allows us to provide SrTiO3 single crystal products with the highest quality and the lowest price to our customers the world over.