ZnO Single Crystal

Negotiable | Min Order Quantity Unit
Place of Origin
Payment Terms
Shipping /
Lead Time
Negotiable / Negotiable
zno wafer, zno brick, zno substrates,

14 Gemma Korea Corporation

Supplier Activity

tradeKorea provides seller activity to buyers throu gh seller evaluation and measurement according to each item.

  • Country

    South Korea South Korea

    Verified Certificate

    • KITA
    • DUNS
    Product name ZnO Single Crystal Certification -
    Category Oxide Ingredients -
    Keyword zno wafer , zno brick , zno substrates Unit Size -
    Brand name - Unit Weigh -
    origin Russia,Turkey Stock -
    Supply type - HS code -
    Product Information



    Technical specification 


    ZnO single crystal blocks
    ZnO single crystals grown by hydrothermal method. Twins, cracks, needles are not allowed.
    Dimensions: 26.5 x 26.5 x 7.5-16 (Z) mm, 21 x21x 7.5-16 (Z) mm, 10 x10x 7.5-16 (Z) mm
    Tolerance: +0.2 / -0 mm
    Orientation: Zn surface [0001], O surface [000-1]
                        Orientation deviation of O surface ±15’
                        X, Y sides deviation ± 30’
    Surface finish: Zn surface is not processed, other surfaces are grinded Ra < 1.0 μm 

    Inclusions Allowed;
    Sizes, μm                               Quantity, pcs/cm3
    100-150                                              0.5
    75-100                                               1.0
    50-75                                                 1.5
    25-50                                                 2.0
    <25                                                   3.0
    The total quantity of inclusions should be <3.5 pcs./cm3 



    Technical specification  


    1. Material
    Single crystal zincite,hydrothermally grown (ZnO); - twins and cracks are not allowed

    2. Dimensions, mm
     Please request dimensional table with tolerances.

    3. Orientation.
    3.1. Orientation of surfaces Z: Zn - [0001] , О - [000-1] ;
    3.2. Deviation of surface orientation Z (O and Zn) from crystallographic axes – not more than 30’,

    4. Processing.
    4.1. Both sides are polished.
    4.2 O-face is polished for epitaxy. Surface roughness (Ra): <=10A
    Scratches in the working zone (1,5 mm from the wafer edge) are not allowed. 


    5. Marking.
    Identification flat edges C and F are according to the drawing.



     Gemma Korea Corporation is an exclusive seller of origin products by hydrothermal manufacturer in Russia. We are selling these products to all companies, universities and research centers in Japan, Taiwan, U.S.A and European area. 





    B2B Trade
    Price (FOB) Negotiable transportation -
    MOQ Negotiable Leadtime Negotiable
    Payment Options Negotiable Shipping time Negotiable

    14 Gemma Korea Corporation

    • Country

      South Korea South Korea
    • Supplier Activity

    • President


    • Address

      #603-403, 19 Arisuro 94 gil, Gangdong-gu, Seoul, 05213, Korea

    • Product Category


    • Year Established


    • No. of Total Employees


    • Company introduction


      •Gemma Korea Corporation
      - Founded in 1998
      - Business relation with SPC Goodwill, VNIISIMS &  

           Mineral Ltd. In Russia since 1998

      - Quartz wafers supply to SEMCO, LG Innotek, Sawnics
      - World Exclusive seller of ZnO crystal wafers(Mineral)
      - Exporting of WWT equipments to Russia
      - GaN growth technology transfer to Korean company
      - Sapphire technology(KY) transfer to Korean company
      - Introducing various technology transfer like HAP, Ce doped YAG, ZnO, Optic Quartz, SiC and others


    • Main Markets
      • China China
      • Germany Germany
      • Japan Japan
      • Norway Norway
      • Russia Russia
      • Taiwan Taiwan
      • U.S.A U.S.A
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