Miracrys

◊ Sapphire ◊ ZnSe ◊ ZnS ◊ CdSe ◊ CdS ◊ ZnTe ◊ CVD ZnSe ◊ CaF2 ◊ Bi2Te3 ◊ Bi2Se3 ◊ CdWO4 ◊ NaBi(WO4)2 ◊ Langasite & Langatate ◊ LiNbO3 ◊ Fused silica ◊ Silicon ◊ GaSe ◊ PbS, PbSe, PbTe ◊ KDP

16 years of serving high-end industries
with high-quality products

Al₂O₃

Al₂O₃ - Control of the Surface Quality (for EPI-polished surface only)

We currently guarantee surface roughness Ra < 0.3 nm for our EPI-polished substrates for HB LEDs and SOS applications.

Here is an example of AFM image of the EPI-polished surface of 3" C-plane substrate.

- chemical admixture?s concentrations,
- optical transmittance,
- rocking curves

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