LED & S.O.S.

2"-7" Sapphire Substrates for semiconductor industry (ready-to-polish blanks)
2"-7" Sapphire Rodstocks for semiconductor industry and optics

2"-7" Sapphire Substrates for semiconductor industry (ready-to-polish blanks)
Property Specification Item
Material   Kyropulos single-crystal sapphire (99,996% of Al203), optical, colorless, resistant to annealing in air
Diameter

-"Standard", inch

-"Customized", mm

2"

50.8-53.0

3"

76.2-77.8

4"

100-103

5"

122-127

6"

150-156

7"

175-180

Diameter accuracy, mm  
0.05
0.1
0.2
Center thickness, mm

-"Standard"

-"Customized"

0.48

0.42-0.7

0.6

0.5-0.8

0.8

0.6-1.0

1.2

0.7-1.5

1.2

0.7-1.5

1.5

1.0-2.0

Thickness accuracy, mm  
0.02
0.025
0.03
0.04
0.05
Orientation

-LED standard

-LED mis-oriented

-S-O-S

-carrier for GaAs

C-plane

C-plane titled to M or A

-

-

C-plane

C-plane titled to M or A

R-plane

R-plane

-

-

-

R-plane

Orientation accuracy

-"Standard"

-"Customized"

0.1°

0.05°-1°

0.1°

0.1°-5°

0.2°

0.1°-2°

0.2°

0.1°-5°

-

-

Surface

-as cut

-as ground

-as lapped

Sliced (Ra<5 micron)

Fine ground (Ra<1 micron)

Lapped (Ra<0.4 micron)

Primary flat length, mm

-"Standard"

-"Customized"

16.0+/-0.8mm

Upon

22.0 +/-1.0 mm

customer

32.5+/-2.0 mm

request

In accordance with SEMI standard
Pimary flat orientation

-"Standard"

-"Customized"

A-plane +/-0.25°

A-plane +/-0.2°

A-plane +/-0.3°

A-plane +/-0.2°

A-plane +/-03°

A-plane +/-0.32°

In accordance with SEMI standard
TTV, micron

-"Standard"

-"Customized"

<20

<15

<25

<20

<30

<20

<40

<30

<50

<35

<60

-

BOW, micron

-"Standard"

-"Customized"

<10

<5 (lapped)

<15

<10(lapped)

<30

<20(lapped)

<35

<30

<40

<35

<50

-

WARP, micron

-"Standard"

-"Customized"

<25

<20 (lapped)

<30

<20 (lapped)

<40

<30 (lapped)

-

-

-

-

-

-

Bevel, mm  
0.15mm x 45°
0.2mm x 45°

Notes:
-other specifications, size and tolerances are avilable
-customized items with diameter up to 200mm are possible

 

2"-7" Sapphire Rodstocks for semiconductor industry and optics
Property Specification Item
Material   Kyropulos single-crystal sapphire (99,996% of Al203), optical, colorless, resistant to annealing in air
Diameter

-"Standard", inch

-"Customized", mm

2"

50.8-53.0

3"

76.2-77.8

4"

100-103

5"

122-127

6"

150-156

7"

175-180

Diameter accuracy, mm  
0.05
0.1
0.2
Lenght  
50-120
40-110
40-80
20-80
20-80
10-50
Orientation

-LED standard

-LED mis-oriented

-S-O-S

-carrier for GaAs

-domes, windows

C-plane

C-plane titled to M or A

-

-

Random or A/M/R-plane

C-plane

C-plane titled to M or A

R-plane

R-plane

Random or A/M/R-plane

-

-

-

R-plane

Random or R-plane

Orientation accuracy

-"Standard"

-"Customized"

0.1°

0.05°-1°

0.1°

0.1°-5°

0.2°

0.1°-2°

0.2°

0.1°-5°

-

-

Surface

 

Fine ground (Ra<1 micron)

Primary flat length, mm

-"Standard"

-"Customized"

16.0+/-0.8mm

Upon

22.0 +/-1.0 mm

customer

32.5+/-2.0 mm

request

In accordance with SEMI standard
Pimary flat orientation

-"Standard"

-"Customized"

A-plane +/-0.25°

A-plane +/-0.2°

A-plane +/-0.3°

A-plane +/-0.2°

A-plane +/-03°

A-plane +/-0.32°

In accordance with SEMI standard

Notes:
-other specifications, size and tolerances are avilable
-special customer requests about rod barrel parallelism and ends/barrel perpendicularity a realizable
-customized rods with diameters from 20mm to 170mm and length from 20mm to 150mm are available

return to top