Semiconductor Wafer Inc


Sapphire Wafer

Semiconductor Wafer Inc. provides sapphire wafer with complete orientation options including C plane , A plane , R plane and M plane , in diameter range  from 1" to 4" , square substrate is also available as well , size from 10 x 10 mm to 100 x 100 mm . Substrate are produed as per SEMI standards it has good surface finish Ra < 5A and high cleanliness , SWI can offer epi ready grade sapphire wafer for your epitaxial growth . Sapphire wafer are produced by Czochralski method , due to it's high strength, high anti-corrosion high anti-abrasion , low dielectric loss and good electrical insulation , single crystal  sapphire wafer plays an increasingly important role as a material for blue LED and high Tc superconductor and microwave applications. Contact us for for further information on price & delivery time .                                                               
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                                                                                                       

Standard Specifications
Growth method
Crystal structure
<0001> , <1120> , <1102> ,<1010>
C-plane , A-plane , R-plane , M-plane
Dielectric constant
Lattice constant
4.77 A
Tolerance of orientation
+/- 0.5 °
10 x 10 mm , 20 x 20 mm , 30 x 30 mm
 2" , 3" , 4"
Other sizes available upon request
430 um , 0.5 mm or 1 mm
Surface finish
one side or two sides epi polished
Surface roughness
Ra <= 5 A
Package method
Single wafer container or Ampak cassette
Superior quality of products with reliance is our prime consideration.
Feel free to contact us if you need any other assistance about our products .
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Phone : +886-03-592-7585
Fax : +886-03-516-2843
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