SHANGHAI FAMOUS TRADE CO.,LTD
SHANGHAI FAMOUS TRADE CO.,LTD
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2inch 50.8mm C Miscut A 4 Degree Sapphire Wafers Thickness 0.175mm/0.3mm/0.4mm/0.5mm Dsp 2 Inch C Plane Polished Sapphire Wafers Crystal Substrates
The specifications of 2inch sapphire wafer substrate
Material: High Purity >99.99%, single crystal Al2O3
Dimension: 50.8 mm +/- 0.1 mm
Thickness: 430 um +/- 25 um for SSP and 400 um +/- 25 um for DSP (other thickness available upon request)
Lattice Parameter: a=4.785 A, c=12.991 A
Density: 3.98 g/cm3
Orientation: C plane (0001) to M (1-100) 0.2 +/- 0.1 degree off.
Primary Flat Orientation: A-plane [11-20] +/- 0.2 deg
Primary Flat Length: 16.0 +/- 1.0 mm
Total Thickness Variation (TTV): <5 um
Bow: <10 um
Warp: <10 um
Thermal Expansion Coefficient: 6.66 x 10-6 / °C parallel to C axis, 5 x 10-6 /°C perpendicular to C axis
Dielectric Strength: 4.8 x 105 V/cm
Dielectric Constant: 11.5 (1 MHz) along C axis, 9.3 (1 MHz) perpendicular to C axis
Dielectric Loss Tangent (a.k.a. dissipation factor): less than 1 x 10-4
Thermal Conductivity: 40 W/(m.K) at 20℃
Polishing: single side polished (SSP) front side epi-ready surface Ra < 0.3 nm (AFM), back side fine-ground Ra = 0.8 ~ 1.2 um, or double side polished (DSP) both front and back sides epi-ready surface Ra < 0.3 nm (AFM)
| OPTICAL PROPERTIES of SAPPHIRE Al2O3 | |
| Transmission Range | 0.17 to 5.5 microns |
| Refractive Index | 1.75449 (o) 1.74663 (e) at 1.06 microns |
| Reflection Loss | at 1.06 microns (2 surfaces) for o-ray - 11.7%; for e-ray - 14.2% |
| Index of Absorption | 0.3 x 10-3 cm-1 at 2.4 microns |
| dN/dT | 13.7 x 10-6 at 5.4 microns |
| dn/dm = 0 | 1.5 microns |
| PHYSICAL PROPERTIES of SAPPHIRE Al2O3 | |
| Density | 3.97 g/cm3 |
| Melting Point | 2040 degrees C |
| Thermal Conductivity | 27.21 W/(m x K) at 300 K |
| Thermal Expansion | 5.6 x 10 -6 /K (parallel C-axis) & 5.0 (perpendicular C-axis) x 10 -6 /K |
| Hardness | Knoop 2000 kg/mm 2 with 2000g indenter |
| Specific Heat Capacity | 419 J/(kg x K) |
| Dielectric Constant | 11.5 (parallel C-axis) 9.4 (perpendicular C-axis) at 1MHz |
| Young's Modulus (E) | 335 GPa |
| Shear Modulus (G) | 148.1 GPa |
| Bulk Modulus (K) | 240 GPa |
| Elastic Coefficients | C11=496 C12=164 C13=115 C33=498 C44=148 |
| Apparent Elastic Limit | 275 MPa (40,000 psi) |
| Poisson Ratio | 0.25 |
| Standard wafer 2 inch C-plane sapphire wafer SSP/DSP 3 inch C-plane sapphire wafer SSP/DSP 4 inch C-plane sapphire wafer SSP/DSP 6 inch C-plane sapphire wafer SSP/DSP | Special Orientation A-plane (1120) sapphire wafer R-plane (1102) sapphire wafer M-plane (1010) sapphire wafer C-axis with a 0.5°~ 10° offcut, toward A-axis or M-axis Other customized orientation |
| Customized Size 10x10x0.5mm sapphire wafer 20x20x0.5mm sapphire wafer Ultra thin (100um) 2inch sapphire wafer 8 inch sapphire wafer | Patterned Sapphire Substrate (PSS) 2 inch C-plane PSS 4 inch C-plane PSS |
| 2inch | DSP C-AXIS 0.1mm/ 0.175mm/0.2mm/0.3mm/0.4mm/0.5mm/1.0mmt |
| 3inch | DSP/ SSP C-axis 0.43mm/0.5mm |
| 4Inch | dsp c-axis 0.4mm/ 0.5mm/1.0mm |
| 6inch | ssp c-axis 1.0mm/1.3mmm |
Q:What is your minimum order requirement?
A:MOQ:10 piece
Q:How long will it take to execute my order and delivery it ?
A:confirm the order 1days After confirming the payment and delivery in 5days if on stocks.
Q:Can you give warranty of your products ?
A:We promise the quality, if the quality has any problems, we will produce new produces or return you money.
Q:How to pay?
A:T/T, Paypal, West Union, bank transfer.
Q:HOW about the freight ?
A:we can help you pay for the fee if you don’t have account,
if the order is over 10000usd, we can delivery by CIF.
Q:If you have any other questions,please do not hesitate to contact me.
A : connect with by skype/whatsapp :+86 158 0194 2596 or 2285873532@qq.com
we are at your side any time~~