Sapphire Wafer

 

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 Features Sapphire Wafer Applications
High working temperature
Good thermal conductivity
Superior mechanical properties
High anti corrosion
Stable dielectric constant
Low dielectric loss
Excellent light transmission   
Blue LED substrate
Superconductor substrate
Electronics and optoelectronics
UV and optics
Sapphire Wafer 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 / 30 x 30 / 50 x 50 / 100 x 100 mm
Thickness
0.43 / 0.5 / 1 mm
Orientation
<0001> / <1120> / <1102> / <1010>
C / A / R / 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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