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CHENGDU DONGJUN LASER CO., LTD.

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sapphire thermal conductivity 2 inch 4 inch 6 inch sapphire wafer c plane/sapphire 2'' wafer

OverviewQuick DetailsPlace of Origin:Sichuan, China (Mainland)Brand Name:DJModel Number:Sapphire WaferRound shape:2/4/6Crystal structure:Hex

$4 /Piece


Stock:	30000 Pieces
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Overview

Quick Details

Place of Origin:: Sichuan, China (Mainland)

Brand Name:: DJ

Model Number:: Sapphire Wafer

Round shape:: 2"/4"/6"

Crystal structure:: Hexagonal

Chemical formula:: Al2O3

Crystal:: LED Grade Sapphire

Sapphire Purity:: ≥99.9996%

Surface Roughness:: Ra<3A

Back Side Roughness:: Fine ground, Ra=1.0±0.2um

Primary Flat location:: A-axis±0.2°

TTV:: ≤15um

LTV:: ≤3um(8mm*8mm)

Packaging & Delivery

Packaging Details: 2 inch 4 inch 6 inch sapphire wafer c plane
BOX or based on your need

Delivery Time: Shipped in 15 days after payment

What we can do

Our company grow the sapphire single crystal,we can supply sapphire ingot(2inch,4inch,6inch,8inch),sapphire wafer(single/double side polishing),sapphire block,all kinds of sapphire optical window(applied to optical equipment,industry camera,cell phone watches and other special optical components),if you have any requirements,please contact us,looking forward to your cooperation

Product Description

2 inch 4 inch 6 inch sapphire wafer c plane

Sapphire optical windows are ideal for applications where high pressure, vacuum, or corrosive atmospheres are a consideration. Sapphire, a single crystal form of Al2O3, is resistant to attack by strong acids due to its high dielectric constant. It has high compressive strength and a high melting point. It is also resistant to UV radiation darkening. Our sapphire optical windows are not coated, but a single layer coating of MgF2 on each surface of the window increases the single surface transmittance to 99% throughout the entire visible spectral region. Please note the SAW series sapphire windows are provided in random axis orientation by default and its birefringent nature could affect the polarization state of your application.

Customizing is available.By using sapphire cutting and machining facilities, sapphire wafers in different orientations, thicknesses and machining accuracies are available. At present, the products mainly are 2″，4″and 6″ sapphire wafers.

LED Substrate Sapphire Substrate

Sapphire Substrate Size	2'' Single-Sided	2'' Double-Side	3'' Single-Sided	3'' Double-Side	4'' Single-Sided	4'' Double-Side
Grade	LED	LED	LED	LED	LED	LED
Polish Type	(1) Side EPI	(2) sided polished EPI	(1) Side EPI	(2) sided polished EPI	(1) Side EPI	(2) sided polished EPI
Sapphire Purity	>99.99%	>99.99%	>99.99%	>99.99%	>99.99%	>99.99%
Orientation	-1	-1	-1	-1	-1	-1
C-axis	± 0.2°	± 0.2°	± 0.15°	± 0.15°	± 0.20°	± 0.20°
Diameter	50.8 ± 0.25 mm	50.8 ± 0.25 mm	76.2mm ± 0.25 mm	76.2mm ± 0.25 mm	100 ± 0.25 mm	100 ± 0.25 mm
Thickness	0.332 or 0.432 ± 0.025 mm	0.332 or 0.432 ± 0.025 mm	0.550 ± 0.025 mm	0.550 ± 0.025 mm	0.650 ± 0.025 mm	0.650 ± 0.025 mm
Primary Flat	-1120	-1120	-1120	-1120	-1120	-1120
Primary Flat	A-axis ± 0.3°	A-axis ± 0.3°	A-axis ± 0.3°	A-axis ± 0.3°	A-axis ± 0.3°	A-axis ± 0.3°
Flat Length	16.0 ± 1.5 mm	16.0 ± 1.5 mm	22.0 mm ± 1.5 mm	22.0 mm ± 1.5 mm	32.0 ± 2.5 mm	32.0 ± 2.5 mm
Front Side Surface	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm
Back Surface Roughness	Fine grind, Rmax	80-50 or better backside	Fine Grind, Rmax	80-50 or better backside	Fine Grind, 0.4 -	80-50 or better backside
Ra	5-10 µm	5-10 µm	5-10 µm	5-10 µm	1.0 microns (Ra)	1.0 microns (Ra)
TTV	< 25 µm	< 25 µm	< 30 µm	< 30 µm	< 40 µm	< 40 µm
BOW	< 20 µm	< 20 µm	< 30 µm	< 30 µm	< 30 µm	< 30 µm

Sapphire Substrate

Sapphire Substrate Size	10mm X 10mm X .432 mm Single-Sided	10mm X 10mm X .432 mm Double-Sided	25.4mm X 25.4mm X .500mm Single-Sided	25.4mm X 25.4mm X .500mm Double-Sided
Grade	LED	LED	LED	LED
Polish Type	EPI	Double-sided EPI	Single sided EPI Ready	Double sided EPI Ready
Sapphire Purity	>99.99%	>99.99%	>99.99%	>99.99%
Orientation	(0001)	(0001)	(0001)	(0001)
C-axis	± 0.2°	± 0.2°	± 0.2°	± 0.2°
Thickness	0.432mm	0.432mm	0.500mm	0.500mm
Front Side Surface	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm
Back Surface Roughness	Fine grind, Rmax 5-10 µm	EPI	EPI	EPI

Detailed Images

Advantages:

High working temperature
Good thermal conductivity
Superior mechanical properties
High anti corrosion
Stable dielectric constant
Low dielectric loss
Excellent light transmission

Production Process

Raw Material(Ingredient)

The ingredients are the first step in the production process, the specific process includes: burning materials, ingredients, loading, binder, sintering.
Crystal Growth
Our company achieves mass production of yag crystal and sapphire crystal by latest crystal growing furnance.

Testing of Single Crystal Material

After crystal growth,we will test each single crystal,testing after passing will be next step
Crystal Roughing
Each crystal materila will need to be cut into the crystal, material selection, processing molding.
Crystal Finishing
Divided into: grinding and polishing. Grinding: Before polishing, grinding needs to stick into a crystal rods, grinding on the grinding disc. Polishing: After grinding, the crystals mounted on the end face polishing machine for polishing. Each base processing usually takes 6 hours.
Product Testing
For the finished product, Finished product testing:We need to check the following index: surface finish, flatness, parallelism. perpendicularity.
Coating
Coating is coated with layers ranging from film in the end face of the crystal to achieve transmition and reflection. (Coating or not according to the actual situation)
Finished product storage

The finished product will be packed in a warehouse and send you by express as soon as possible.

Packing & Delivery

Our Company

COMPANY PROFILE

Chengdu Dongjun Laser Co.,Ltd as a 16 years mannufacturer which is localed in Sichuan province in China.Biggest Manufacture in this feild in China.

DJ-Laser specialized in A series of laser crystal materials such as
Nd:YAG、(Nd：Ce):YAG、Cr4+:YAG、Er:YAG、Ce:YAG、Yb:YAG、（Tm.Ho）:YAG、（Tm.Ho.Cr）：YAG、Nd:YAP、Er:Glass、 YOV4、Nd: YOV4.

Certificate

We have passed the ISO ,SGS ,and GJB9001 quality system certification.

Our Trade Show

Exhibitions

We have take part in the exhibitions in India, French,US,Taiwan,Korea,Germany Ect.

2015.6.25-28 laser photonics munchen.
2016.2.14-16 West phptonics
2016.316-18 laser photonics Shanghai
2016.6.5-10 2016 Optatec

FAQ

1. Q: Where is your company located? How can I visit there?
A: Our factory is located in Chengdu City, Sichuan Province, China.
2. Q: Can I get sample and how long will it take?
A:Yes. We can supply sample. And you need to pay for the sample and courier. About 7days after receiving the payment, we will send it out.
3. Q: What's the MOQ?
A: Our MOQ is 1 pieace.
4. Q: Can I have my own customized product?
A: Yes. Your customized requirements for logo, design, package, carton mark, your language manual etc. are very welcome.
5. Q: Can I mix different models in one container?
A: Yes. Different models can be mixed in one container.
6. Q: What is the payment terms?
A:100% T/T

If you have another question, pls feel free to contact us as below: