进口优质蓝宝石基片、LED基片是2寸或4寸

crystalmaterials

single crystal gallium arsenide, vgf / lec grown

crystalorientation

dopant

undoped

diameter

76.2± 0.25mm or 100.0 ± 0.4mm

thickness

625 ± 25um

orientation

（100）α0±β0, off angle α and accuracy β upon request

resistivity

？ω.cm

mobility

≥ ？cm2/ v·sec

carrier concentration

？/cm3

etch pit density

≤ ？cm-2

orientation(of) flat, ej / us

identification(if) flat, ej / us

front side surface

polished

backside surface

polished

packaging

n2 filled，cassette / fluoroware, 25pcs /single piece

quantity

？ pcs