Silicon wafer
PhotonExport supplies small quantity silicon wafer and crystal as detailed below.
Specifications: Choose from the silicon wafer specifications listed below. We have no minimum order quantity.
- Silicon wafer SSP: Single-Side Polished
- Silicon wafer DSP: Double-Side Polished
- Thickness form the Super-Thin 2 micron wafer up to thick wafer or ingo
- Doped P, Doped N or Undoped
- Select your standard orientations per example (100) or (110) or (111). Check with us for your specific orientation to ensure suitable results.
Available Silicon Wafer Diameters
- 25.4 mm Si Wafer, 50.8 mm Si Wafer, 76.2 mm Si Wafer, 100 mm Si Wafer, 125 mm Si Wafer, 150 mm Si Wafer, 200 mm Si Wafer, 300 mm Si Wafer, 450 mm Si Wafer
Thermal Oxide Silicon Wafers
- Thermal Oxide (SiO2)
- Wafer Diameter ranging fom 25.4 mm to 300 mm
- Thickness available from 200 Angstroms (Å) to 15 µm
Silicon Nitride Wafers
- Stoichiometric LPCVD (low-pressure chemical vapor deposition) Silicon Nitride wafer
- PECVD (Plasma enhanced chemical vapor deposition) Silicon Nitride wafer (deposited at low temperatures)
Indium Gallium Arsenide Wafers
We supply single crystal InGaAs:
- InGaAs is principally used for infrared detectors. Other applications include avalanche photo diodes, some of the fastest transistors, and photovoltaic triple-junction
Commonly supplied for your integrated photonics applications
Indium Phosphide wafers
- Diameters available: 2″, 3″
Crystal Wafers
Specifications
Choose your orientation
- (100), (001), (111), (110) for cubic and tetragonal crystals
- (0001), (1102), (1120), (1010) for hexagonal crystals
- Other orientations are available with higher Miller index values or vicinal substrates
- Orientation accuracy : ± 0.5°, typical < 0.3°, or better on request
Choose your standard size:
- 5 mm x 5 mm, 10 mm x 10 mm, 10 mm x 5 mm, 15 mm x 15 mm
- 12,7 mm x 12,7 mm, 20 mm x 20 mm, 25 mm x 25 mm, ø1″, ø2″
Lateral tolerances:
- +0/-0.05 mm
Standard thickness:
- 0.5 mm, 1.0 mm, other thicknesses down to 0.1 mm on request
Vertical tolerance:
- +/- 0.05 mm, or better on request
Polishing:
- One or both sides epi-polished (epitaxy ready polished)
- Surface quality: scratch free under magnification 50x
- Micro-Roughness (measured with interferometer microscope)
(lateral resolution : 0.65 µm, theoretical vertical resolution from 0.01 nm) - Roughness: ( λcut off =0.08 mm)
Ra: < 0.5 nm
Rq: < 1.0 nm
Rt: < 2.0 nm
Crystals usually in stock:
Aluminum, CeO2, GdScO3, LiF, PbSe, Tb-Dy-Fe (GMM), Al2O3 (sapphire), CdS, GGG, MgAl2O4 (spinel), PbTe, W (Polycrystal), AlN, CdSe, Graphite, Mg, SrTiO3, WS2, Ag, CdTe (HgCdTe), InAs, MgF2, Nb:SrTiO3, WSe2, Au, CdZnTe, InP, MgO, SrLaAlO4, WTe2, Au/Cr coated, SiO2/Si, CsI (TI), InSb, Mica Disks, SrLaGaO4, BaF2, DyScO3, KCl, Mo (Polycrystal), SiO2 (quartz), YAlO3 (YAP), BaTiO3, Diamond, KH2PO4, MoS2, SiC (4H, 6H, 3C), YAG, Bi2Se3, Diamond Epi Film on Si, KTN, MoSe2, SBN, YIG, Bi2Te3, Fe (SS-Poly), KTaO3, MoTe2, Si, YVO4, Bi4Ge3O12(BGO12), Fe2O3, LaAlO3, NaCl, Si-Ge, YSZ, Bi12GeO20(BGO20), Fe3O4, LaF3, NaBi(WO4)2, SOI, ZnO, BN (h), Ga2O3-ß, La3Ga5SiO14, NdCaAlO4, SOS, Black Phosphorus, GaAs, LiAlO2, Nickel (single xtl), Ti (polycrystal), ZnS, CaF2, GaN, LiGaO2, NdGaO3, TiO2(Anatase), Zn, C (single crystal), GaSe, LSAT, PBN, TiO2 (Rutile), ZnSe, CaCO3 (Calcite), GaP, Li, PET Film, Ta, ZnTe, Cu, GaTe, LiNbO3, PbWO4, TGG, Zr, Ce: Lu2SiO5, GaSb, LiTaO3, PMNT, TeO2, Zero Diffraction Plate, CdWO4, Ge, Lu2SiO5: Ce, PbS, TbScO3, Two Dimensional Crystal.
If you can´t find it in our listing, ask us for more and custom solutions.
Ceramic Wafers:
PhotonExport provides Alumina substrate (Al2O3), Zirconia substrate (ZrO2) and Aluminum Nitride substrate (AlN).
Al2O3 substrate has a very communused due to its excellent high mechanical strength and very high heat resistance. Properties includes a very small dieletcric loss which makes alumina substrates very good for high-
| Description | Al2O3 Wafer Type 1 | Al2O3 Wafer Type 2 | Al2O3 Wafer Type 3 | Al2O3 Wafer Type 4 |
|---|---|---|---|---|
| Purity (wt%) | 0.96 | 99.6% | 99.6% | 99.9% |
| Density (g/cm3) | > 3.75 | 3.88 | 3.87 | 3.92 |
| Thermal conductivity (W/m. K) | 24 | 34.7 | 35 | 35 |
| Thermal Expansion (x10-6/oC) | < 7.7 | 7~8.3 | 7~8.3 | 8.1 |
| Dielectric Strength (Kv/mm) | > 14 | 23.64 | 23.64 | 8.7 |
| Dielectric Constant (at 1MHZ) | 9.8 | 9.9 | 9.9 | 9.8 |
| Loss Tangent (x10-4 @1MHZ) | 4 | 1 | 1 | < 1 |
| Volume Resistivity (ohm-m) | > 1013 @ 20 Cº; > 3×107 @ 500 Cº | > 1014 @ 25 Cº; > 109 @ 500 Cº | > 1014 @ 25 Cº; > 1010 @ 500 Cº | > 1015 @ 25Cº; 1012 @ 500 Cº |
| Flexural Strength (N/mm2) | >330 | 593 | 621 | 400 |
| Surface Roughness (micron) | as fired 0.3 as lapped 0.075 as polished 0.025 |