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[China]
Trade Verify
Address: Rm5-616，NO.851,Dianshanhu road; Qingpu area;shanghai city//201799
Contact name:Wang
SHANGHAI FAMOUS TRADE CO.,LTD |
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Verified Suppliers
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zmkj is a key supplier of sapphire substrates for photoelectronic
applications, including the high brightness LED market.
The material is grown and orientated, and substrates are fabricated
and polished to an extremely smooth damage free Epi-Ready surface
on one or both sides of the wafer. A variety of wafer orientations
and sizes up to 6" diameter are available.
A-Plane sapphire substrates - are usually used for hybrid microelectronic
applications requiring a uniform dielectric constant and highly
insulating characteristics.
C-Plane substrates - tend to be used for lll-V and ll-Vl compounds, such
as GaN, for bright blue and green LED and laser diodes.
R-Plane substrates - these are preferred for the hetero-epitaxial
deposition of silicon used in microelectronic IC applications.
:Properties of sapphire
| Physical | |
| Chemical formula | Al2O3 |
| Density | 3.97 g/cm3 |
| Hardness | 9 Mohs |
| Melting point | 2050oC |
| Max. use temperature | 1800-1900oC |
| Mechanical | |
| Tensile strength | 250-400 MPa |
| Compressive strength | 2000 MPa |
| Poisson's ratio | 0.25-0.30 |
| Young's Modulus | 350-400 GPa |
| Bending strength | 450-860 MPa |
| Rapture Modulus | 350-690 MPa |
| Thermal | |
| Linear expansion rate (at 293-323 K) | 5.0*10-6K-1(⊥ C) |
| 6.6*10-6K-1(∥ C) | |
| Thermal conductivity (at 298 K) | 30.3 W/(m*K)(⊥ C) |
| 32.5 W/(m*K)(∥ C) | |
| Specific heat (at 298 K) | 0.10 cal*g-1 |
| Electrical | |
| Resistivity (at 298 K) | 5.0*1018 Ω*cm(⊥ C) |
| 1.3-2.9*1019 Ω*cm(∥ C) | |
| Dielectric constant (at 298 K, in 103-109 Hz interval) | 9.3 (⊥ C) |
The Detail for 2inch c-axis wafers
Size: 2 inch DSP-175-c-axis
Material: KY Sapphire Al2O3 single crystal without bubble；color ；
Orientation:C-cut,M-axis off 0.0+/-0.2°；
Diameter: 50.8 +/-0.2mm ；
Thickness:175 ± 15 um ；
OF Flat:16.0 +/- 1.0 mm ； OR round shape
OF orientation: a-axis
Surface: SSP /dsp Epi-ready Polished ；
TTV<= 10um ；BOW<= 20um ； Warp<= 20 um ；
Front Surface Roughness (Ra) Ra <= 0.3 nm ； or double side
Back Surface Roughness (Ra) Ra = 1.0 +/-0.2um ；
Edge: from 1mm ；
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 |
OUR FACTORY
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~~
