Products& Applications

Technology products used in the semiconductor, optoelectronics, optical fiber communications, wireless communications, and other industries, the key components needed (such as surface acoustic wave devices, communication IC, fiber optic connectors, high density wavelength demultiplexer power, light emitting diodes and laser diode ...... etc.). These key components industry have in common is the need for high-quality oxide or compound semiconductor wafer as a substrate material to produce the required components. Trillion Yuan Technology Crystalwise Technology Inc. (CWT) mainly provides the substrate material is mainly used in these industries.

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1 .Sapphire Substrate used for Blue-light/Green-light LED

GaN is the major material used for blue-light/green-light LED. At the early stage of its development, the reason that the researches toward GaN did not show remarkable progress is scientists cannot find substrates matching with its lattice constant.

Sapphire(Al2O3) Wafer PSS(Pattern Sapphire Substrate) Single Crystal AlN Wafer
Sapphire(Al2O3) Wafer
Type  
Orientation
Thickness(mm)
Diameter
+Z / -Z
 
Single Side Polishedc/a/m/r
0.43/0.5/0.65
2”/4”/6”
Polished/Ground
Double Side Polishedc/a/m/r
0.43/0.5/0.652”/4”/6”
Polished/Polished

 

PW (Polish Wafer) Specification

 2"4"6"
ItemTargetToleranceUnitTargetToleranceUnitTargetToleranceUnit
Diameter :50.8±0.1mm100±0.1mm150±0.2mm
Thickness :430±15um650±15um1300±25um
Flat Length:16±1mm30±1mm47.5±1mm
C-plane (0001) Off-set Angle (M-axis):0.2±0.1degree0.2±0.1degree0.2±0.1degree
Flat Off-set Angle:0±0.25degree0±0.3degree0±0.3degree
Bow:-10~0um-15~0um-15~15um
Warp:≤ 15um≤ 20um≤ 30um
TTV:≤ 10um≤ 10um≤ 25um
LTV(5mm*5mm):≤ 2um≤ 2um≤ 2um
Front side Roughness:≤ 2Å ≤ 2Å ≤ 2Å 
Back side Roughness:0.6~1.2um0.6~1.2um0.6~1.4um

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PSS(Pattern Sapphire Substrate)

PSS is supplied as an advanced element used for high-brightness LED wafer. By making a pattern of Cone or Pyramid on sapphire, it is possible to increase the light extraction of LED and to decrease the cost of dollars per watt. CWT has devoted to researching and manufacturing of PSS for many years; therefore, CWT accumulated plentiful experiences on making of top-quality PSS. CWT is able to provide LED industry with superior-quality products and high-productivity benefits. CWT is ready to become a reliable alliance of customers, providing complete services and excellent qualities as demanded. In addition, CWT is ready to offer professional making and serving of PSS with customized specifications to customers.

HeightWidthPitchPSS (Pattern Sapphire Substrate
 
1.62.63
1.72.73
1.82.83
1.32.33.2
1.42.43.2
1.42.63.2

CustomizationCustomizationOther custom designs available upon request

Design of Pattern

  

Currently available pattern dimensions:

1.  Pitch:  3.0  µm

2.  Width :  2.6  ~ 2.8  µm

3.  Height :  1.6  ~ 1.8  µm

4.  Pitch under 2.0 µm available on demand

5.  Dimensional tolerance down to± 0.15 µm

 

 

Wafer Diameter


Design of Shape 
Circular hexagon: Cone

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Single Crystal AlN Wafer

Profile

Aluminum nitride (AlN) substrates are now available in a range of sizes from 6mm x 6mm suitable for research or 2-inch diameter for production. Substrates are available with a-face or c-face orientation (2-inch substrates are limited to c-face presently) and other orientations are available on a special order basis.

Substrates are epi ready on the front surface with a fine ground back surface.

Interested parties should contact us.



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2 .Substrate used for SAW Filter Device

Surface Acoustic Wave (SAW) Filter is a high frequency device, mainly applied on wireless communication...

Lithium Niobate(LiNbO3) Wafer Lithium Tantlate(LiTaO3) Wafer
Lithium Niobate(LiNbO3) Wafer
OrientationSAW AxisSAW Velocity(m/s)Back side
 
Y-axis 128° RotatedX3980GC#1000 (0.2um<Ra<0.5um)
Y-axis 64° RotatedX4478GC#1000 (0.2um<Ra<0.5um)
Y-axis 41° RotatedX4380GC#1000 (0.2um<Ra<0.5um)
Y-AxisZ3488GC#1000 (0.2um<Ra<0.5um)

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Lithium Tantlate(LiTaO3) Wafer
OrientationSAW AxisSAW Velocity(m/s)Back side
 
Y-axis 36° Rotated
X4160GC#1000 (0.2um<Ra<0.5um)
Y-axis 42° Rotated
X4178GC#1000 (0.2um<Ra<0.5um)
X-Axis 
112°Y
3296GC#1000 (0.2um<Ra<0.5um)

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3 .Other Types of Substrate used in Optronic and Semiconductor Industry

A flock of substrates are used in Optronic -communication and Semiconductor industries. For example, in the category of Optronic -communication, the characteristic, birefringence, of LiNbO3 is use as a chief communication component. For Semiconductor manufacturers, not only silicon wafers but also glass substrates are used as major materials.

Optical Lithium Niobate(LiNbO3) Wafer 6 inch Carrier
Optical Lithium Niobate(LiNbO3) Wafer

Feel free to contact us or call +886-3-5770658 or mail info@crystalwise.com.tw your sapphire substrate questions.



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6 inch Carrier

Crystalwise Technology Inc. (CWT) continuously develops large size sapphire wafers. Moreover, CWT extends and applies the core technology of wafer processing to manufacturing of essential sapphire 6” carriers used in GaAs Power Amplifiers. Constrained by strict requirements towards precision and difficulty to be processed, the supplies of carriers in Taiwan mostly rely on the imports from Japan and the U.S. CWT devoted itself to developing and manufacturing of carriers and has been verified as a certified GaAs wafer manufacturer; therefore, CWT is able to produce and supply sapphire carriers with high precision.

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4 .Sapphire Components

Materials and features


Below is the modeled process flow. Other flows are possible but the detailed sequence of steps to extract the bricks was found to have relatively low impact on the total cost compared to the main contributors: crystal growth, slicing and shaping/finishing.

Sapphire TP Cover Glass Sapphire Camera Lens Sapphire Cover Glass Sapphire Finger Sensor Lens
Sapphire Function Key (ex. Power Key, Volume Key, Home-Return Key) Sapphire Window Sapphire Heat Spread Substrates
Sapphire TP Cover Glass

It is primarily used as a cover glass for tounched-screens of a phone and a smart watch, providing with features such as thermal-resistant, superior hardness, wear-resistant, high translucence, scratch-resistant and high permittivity.

 

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Sapphire Camera Lens
Application & Introduction
Specification
 

It is majorly used as a camera lens on a phone, possessing features such as superior hardness, wear-resistant, high translucenence and scratch-resistant.


spec
images
 


鏡頭用藍寶石保護蓋
鏡頭用藍寶石保護蓋

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Sapphire Cover Glass
Application & IntroductionSpecification
 

It is primarily used as a watch cover, providing with features such as superior hardness, wear-resistant, high translucence and scratch-resistant.

SPEC
產品圖片
 

手錶用藍寶石保護面板

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Sapphire Finger Sensor Lens
Application & Introduction
Specification
 

It is chiefly used as a cover lens on a chip for fingerprints verification, possessing features such as high permittivity, superior hardness, wear-resistant and scratch-resistant.


SPEC
images
 

指紋辨識用藍寶石保護蓋

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Sapphire Function Key (ex. Power Key, Volume Key, Home-Return Key)
Application & IntroductionSpecification
 

It is essentially used as a function key on a phone, providing with features such as superior hardness, wear-resistant, high translucenence, scratch-resistant and top quality.


SPEC
產品圖片
 
Sapphire Function Key (ex. Power Key, Volume Key, Home-Return Key)
鏡頭用藍寶石保護蓋

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Sapphire Window
Application & Introduction
Specification
 

It is primarily used as a means toward protecting an application window, for example, a furnace, possessing features such as thermal-resistant, superior hardness, wear-resistant, high translucence and scratch-resistant.


SPEC
產品圖片
 

藍寶石視窗片

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Sapphire Heat Spread Substrates
Application & IntroductionSpecification
 
Sapphire Heat Spread Substrates for LED Products

LED lighting products lead illumination trends of the world. Spectacularly, omni-directional LED products are able to reveal the quality and beauty of LED lighting; therefore, they become manufacturing emphasis in the industry. Commonly, companies use glass as lighting substrates and thin film as circuit. Glass is characterized by translucence; however, its heat dissipation coefficient is about 1.5W/mK, which makes junction temperature of LED too high and thus decreases lighting efficiency and life cycle of products. Also, the use of thin film as circuit raises manufacturing costs. An appropriate solution comes from CWT is that the use of sapphire substrates. Sapphire has several characteristics such as high translucence, good intensity and better heat dissipation coefficient than glasses (20-40W/mK), which make it as a good replacement of filament to be applied to omni-directional LED products.


On circuit manufacturing, CWT provides our customers with low-cost and high-efficient product processing. For making of LED lighting engines, CWT offers custmized substrates to our customers as reliable and multiple circuit design solutions to select.


SPEC
Product images
 

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