Semiconductor Wafer Inc

 

Sapphire Wafer


Semiconductor Wafer Inc. ( SWI ) 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 Features
High working temperature
Good thermal conductivity
Superior mechanical properties
High anti corrosion
Stable dielectric constant & low dielectric loss
Excellent light transmission   
 
Sapphire Wafer Applications
Blue LED substrate
Superconductor substrate
Electronics and optoelectronics
UV and optics                                                                                                       
 
Crystal Properties
Growth method
Kyroplous
Crystal structure
Hexagonal
Chemical formula
Al2O3
Lattice constant
4.77 A
Hardness
9
Thermal conductivity
46 W / mk
Dielectric constant
11.58
Refractive index 1.768
 
Standard Specification
Round shape Ø 1" / 2" / 3" / 4" / 6"
Square shape 10 x 10 mm / 20 x 20 / 30 x 30 / 50 x 50 / 100 x 100 mm
Thickness 0.43 / 0.5 / 1 mm
Orientation <0001> / <1120> / <1102> / <1010>
C plane / A plane / R plane / M plane
Surface finish one side / two sides epi polished
Surface roughness Ra <= 5 A
Package method Single wafer container or Ampak cassette
 
 
 
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