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Diverse Optics Inc. - Custom Manufacturing

HEM Sapphire Substrates


HEM sapphire, high-purity, low etch pit density, uniform crystalline structure and no bubbles or inclusions makes it an ideal host for heteroepitaxial deposition. Our substrates are epi polished to Ra surface values of < 0.1 nm with low bow and warp. HEM sapphire substrates have been used to manufacture high brightness and efficiency LEDs and LDs.
HEM Sapphire Substrates

GT Advanced Technologies, Advanced Materials Group
27 Congress St.
Salem, MA 01970
United States
Phone: +1 978-745-0088
Fax: +1 978-744-5059
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