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Crystal plant price Sapphire Al2O3 single crystal substrate

Sapphire substrate is the popular substrates for III-V nitrides, superconductor and magnetic epi film due to less mis-matched lattice and stable chemical and physical properties

Item NO.:
GS-C010
Payment:
L/C、 Western Union、 D/P、 T/T
Product Origin:
Anhui, China
Max Size:
Dia300mm
Orientation:
<0001>、<1-110>、<11-20>
Package:
100 clean bag，1000 exactly clean bag

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Features:

Sapphire substrate is the popular substrates for III-V nitrides, superconductor and magnetic epi film due to less mis-matched lattice and stable chemical and physical properties.
Orientation tolerance: +/-0.5 Deg. C plane orientation
Polished surface: substrate surface is EPI polished via a special CMP procedure with Ra < 5 A
1 side polished
Package: Each wafer is packed in 1000 class clean room with 100 grade plastic bag with wafer container
Precaution: R plane sapphire wafer is easy to cleave compared with C plane's. Please handle it with a care

Typical Properties:

Crystal Structure: Hexagonal. a=4.758 Angstroms c=12.99 Angstroms
Melting Point: 2040 degree C
Density: 3.97 gram/cm2
Growth Technique: CZ
Crystal Purity: >99.99%
Hardness: 9 ( mohs)
Thermal Expansion: 7.5x10-6 (/ oC)
Thermal Conductivity: 46.06 @ 0 oC, 25.12 @ 100 oC, 12.56 @ 400 oC ( W/(m.K) )
Dielectric Constant: ~ 9.4 @300K at A axis ~ 11.58@ 300K at C axis
Loss Tangent at 10 GHz: < 2x10-5 at A axis, <5 x10-5 at C axis

Sapphire (Sapphire, also known as white gem, molecular formula Al2O3) single crystal is an excellent multifunctional material. It has high temperature resistance, good thermal conductivity, high hardness, infrared transparency and good chemical stability. Widely used in many fields of industry, defense and scientific research (such as high temperature infrared window, etc.). At the same time, it is also a widely used single crystal substrate material, which is the preferred substrate for the current blue, violet, white light emitting diode (LED) and blue laser (LD) industries (need to epitaxially gallium nitride film on a sapphire substrate) , is also an important superconducting thin film substrate. In addition to the production of Y-series, La-series and other high-temperature superconducting films, it can also be used to grow new practical MgB2 (magnesium diboride) superconducting films (usually single-crystal substrates are chemically corroded during the production of MgB2 films. ).

Main performance parameters
crystal system	Hexagonal system
unit cell constant	a=4.748Å c=12.97Å
density	3.98 (g/cm3)
melting point	2040℃
Moh's hardness	9
Thermal expansion coefficient	7.5 (x10-6 / oC)
Thermal Conductivity (cal/degree cm sec)		⊥c	//c
	23℃	0.055	26℃ 0.060
	77℃	0.040	70℃ 0.041
Dielectric constant	~ 9.4 @300K at A axis ~ 11.58@ 300K at C axis
crystal orientation	A-plane	<11-20>	2.379A
	R-plane	<1-102>	1.740A
	M-plane	<10-10>	1.375A
	C-plane	<0001>	2.165A
Orientation tolerance	±0.5°
Regular Dimensions and Tolerances	10×3, 10×5, 10×10, 15×15, 20×15, 20×20,
Conventional Thickness and Tolerance	0.5mm, 1.0mm
polishing	single-sided or double-sided
Surface roughness	Ra<5Å (5×5μm)
Package	Class 100 clean bag, class 1000 clean room

Q: Are you trading company or manufacturer ?
We are factory.
Q: How long is your delivery time?
Generally it is 3-5 days if the goods are in stock.
or it is 7-10 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
Payment <=5000USD, 100% in advance.
Paymen >=5000USD, 80% T/T in advance , balance before shippment.

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