Sapphire Wafers
Epistone professionally provides 2", 3", 4", 5" and 6 " C-plane, R-plane, A-plane and M-plane epi-ready sapphire wafers. Single-side or double-side epi-ready polishing, standard thickness at 620um, 500um, 430um, 330um, and 220um ultra-thin wafers are available, and other specific specifications can provide upon your request. Please click here for the specification and details.
PSS Sapphire Wafers
Epistone professionally provides 2" C-plane epi-ready PSS sapphire wafers. Pattern Feature: hexagonal, 4.00¡À0.25um diameter x 1.75¡À0.25um depth; Epi-ready single-side or double-side epi-ready polishing, standard thickness at 430um, and other specific specifications can provide upon your request. Please click here for the specification and details.
Sapphire Carrier Disc
Epistone professionally provides 3", 4", 5" and 6.25 " sapphire substrate discs. Normally double-side polishing, standard thickness at 400um, 500um, 600um, 800um, and 1,000um are available, and other specific specifications can provide upon your request. Please let us know any sepcial specification and detail requirement you want.
GaAs Epi/ Test Grade Wafers
Epistone offers 2", 3", 4" and 6", (100) and (111) orientations, Prime / Test grade epi-ready GaAs wafers. Semi-insulting and Semi- conductive, single-side and double-side epi-ready polishing wafers are available. Please click here for listed specifications.
GaAs Wafers for Solar Cell Application
In very competitive / on sale price, we offers 3", 4" and 6", (100) and (111) orientations, Prime / Test grade epi-ready semi-insulting GaAs wafers for solar cell application. Single-side and double-side epi-ready polishing wafers are available. Please click here for listed specifications.
GaAs Ingots
We offer 2", 3" and 4", (100) and (111) orientations, VGF/LEC grown GaAs ingots. Both Semi-insulating (undoped or Zn-doped) and Semi-conductive (Si or Te-doped) are available. Please click here for detail specification.
InP Wafers
We can provide 2", 3" and 4" InP epi-ready wafers. Semi-conducting (S-doped), Semi-Insulating (Fe-doped and undoped), (100) and (111) orientations are available. Please click here for detail specification.
Germanium Wafers
2", 3" and 4" Germanium epi-ready wafers, Sb, Ga and As dopant and undoped with (100) and (111) orientations are available. Please click here for detail specification.
Wafers Reclaim
Epistone can save your money through wafers reclaim. We reclaim Sapphire, GaAs, Ge and Si wafers. The rejected epiwafers will be repolished and re-cleaned for Prime / Test grade epi-ready wafers. Our customers can use them
for varied applications.
The cost savings for our current customers is tremendous comparing wiht buying brand new wafers, up to 50% or more.
Solar Cell Materials
We can provide 5N(99.999%)/6N(99.9999) cadmium telluride (CdTe) and cadmium Sulfide (CdS) chunks / powder, which are used as starting materials for thin film photovoltaic / solar cell manufacture & research. Our production capability is 1,000 to 5,000Kg per month. Please click here for detail product specification.
CMP Materials
Please click here for detail information
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