Huge Savings Al2o3- Sapphire Wafer, C-plane (0001), 1" X1"x0.5 Mm 2sp - Alc252505s2 - Don't Miss Out [KpPnvOlI]

• Sapphire ( single crystal of Al₂O₃ ) is being used extensively as a substrate for III-V nitrides and for many other epitaxial films 
• Wafer size: 1" X1"X0.5 mm thickness 
• (0001) C plane orientation +/-0.5 Deg
• Polished surface: two sides epi polished by special CMP technology.Package: Each wafer is packed in 1000 class clean room with 100 grade plastic bag with wafer container

Typical Properties:

• Crystal Structure: Hexagonal. a=4.758 Angstroms c=12.99 Angstroms
• Melting Point: 2040 degree C
• Density: 3.97 gram/cm² 
• Growth Technique: CZ
• Crystal Purity:  >99.99%
• Hardness: 9 ( mohs)
• Thermal Expansion: 7.5x10^{-6 (}/ ^oC)
• Thermal Conductivity: 46.06 @ 0 ^oC, 25.12 @ 100 ^oC, 12.56 @ 400 ^oC ( W/(m.K) ) 
• Dielectric Constant: ~ 9.4 @300K  at A axis ~ 11.58@ 300K at C axis
• Loss Tangent at 10 GHz: < 2x10^-5  at A axis,  <5 x10^-5  at C axis

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