Sapphire Wafer




Sapphire Wafer




Sapphire Wafer




Sapphire Wafer






SINCE 2002

Research & Innovation


Semiconductor Wafer Inc. provides single crystal sapphire wafer to optoelectronics and microelectronics industry for making blue LED , high Tc superconductor and microwave IC applications , in diameter range from 1" to 6 ". Sapphire wafer have many unique features such as high strength, high anti- corrosion , high anti-abrasion , low dielectric loss , good electrical insulation , with excellent mechanical and chemical characteristics , sapphire wafer plays an important role in opto-electronics industry today and widely used in precision mechanical parts and vacuum equipments . Sapphire wafer are produed by Kyroplous method , wafer can be offered in round shape and square shape , size range from 10 x 10 mm to 100 x 100 mm , we can offer complete orientation options including C plane ,A plane ,R plane and M plane , it has good surface finish Ra < 5 A and high cleanliness , SWI can offer epi ready grade sapphire wafer for your epitaxial growth . Please contact us for more product information .








Sapphire wafer


C plane


R plane


<0001> <1102>



Epi ready



4" sapphire wafer



Ra <= 5 A



M plane




Sapphire Wafer Feature


Excellent light transmission Good thermal conductivity    
Low dielectric loss High working temperature
High anti corrosion Stable dielectric constant
Superior mechanical property  

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Sapphire Wafer Properties


Chemical formula Al2O3                        
Crystal structure Hexagonal
Lattice constant 4.77 A
Hardness 9
Thermal conductivity 46 W / mk
Dielectric constant 11.58
Refractive index 1.768

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Product Specification


Growth Kyroplous
Diameter Ø 1" / Ø 2" / Ø 3" / Ø 4"/ Ø 6"
Size 10 x 10 / 20 x 20 / 50 x 50 / 100 x 100 mm
Thickness 0.43 mm / 0.5 mm  / 1 mm
Orientation <0001> / <1120> / <1102> / <1010>
  C plane / A plane / R plane / M plane
Surface one side / two sides epi polished
Roughness Ra <= 5 A
Package Single wafer container or Ampak cassette

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