Ge

Germanium has good semiconductor properties. High-purity germanium is doped with trivalent elements (such as indium, gallium, boron) to obtain P-type germanium semiconductors, and pentavalent elements (such as antimony, arsenic, and phosphorus) are doped to obtain N-type germanium semiconductors. They have high electron mobility and high hole mobility.

The high-quality Ge substrates can be used in concentrated photovoltaic(CPV), outer-space solar-cell panel and high-bright light-emitting diode(LED) applications.

Uses/Applications

The high-quality Ge substrates can be used in concentrated photovoltaic(CPV), outer-space solar-cell panel and high-bright light-emitting diode(LED) applications.

Features/Benefits

Germanium has good semiconductor properties. High-purity germanium is doped with trivalent elements (such as indium, gallium, boron) to obtain P-type germanium semiconductors, and pentavalent elements (such as antimony, arsenic, and phosphorus) are doped to obtain N-type germanium semiconductors. They have high electron mobility and high hole mobility.

  • Growth Method

    Czochralski

    Crystal Structure

    Cubic

    Lattice Constant

    a=5.65754 Å       

    Density

    5.323(g/cm3)

    Melt Point

    937.4℃

    Doping Element

    no

    Sb

    Ga

    Type

    /

    N

    P

    Resistivity

    35Ωcm

    0.01~35 Ωcm

    0.05~35 Ωcm

    EPD

    4×103∕cm2

    4×103∕cm2

    4×103∕cm2

    Dimension

    10x3mm10x5mm10x10mm15x15mm20x15mm20x20mm

    Dia50.8 mm ,dia76.2mm, Dia100 mm

    Thickness

    0.5mm1.0mm

    Polishing

    One side or two sides

    Orientation

    <100><110><111>±0.5º

    Crystal Plane Orientation Accuracy

    ±0.5°

    Edge Orientation Accuracy

    Special requirements can reach within 1°

    Bevel Wafer

    According to specific requirements, wafers with edge-oriented crystal planes inclined at a specific angle (inclination angle 1°-45°) can be processed.

    Surface Roughness

    Ra≤5Å5×5µm

    Package

    Class 100 clean bag, Class 1000 super clean room


  • Dimension

    5x5mm,10x10mm,20x20mm,30x30mm , Ø50.8 mm

    Thickness

    0.5mm,1.0mm