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Sapphire
Wafer
Semiconductor
Wafer, Inc provides
monocrystalline
sapphire wafer
for making
blue
LED and high
Tc superconductor
substrate applications.
Sapphire are
available
in all orientations
. Substrates
are supplied
to SEMI
standard ,
they are
also
available in
non-standard
diameters and
finishes. Substrate
thickness
range
from
330 um to 1000
um , depending
on your particular
application
requirements
.
- Sapphire
Wafer Feature
:
High
working temperature
Good
thermal conductivity
Superior
mechanical
properties
High
anti corrosion
Stable
dielectric
constant & low
dielectric
loss
Excellent
light transmission
- Sapphire
Wafer Application
:
Blue
LED substrate
Superconductor
substrate
Electronics
and optoelectronics
UV
and IR optics
Standard
Monocrystalline
Sapphire Wafer
| Growth
method |
CZ
|
| Crystal
structure |
Hexagonal
|
| Orientation |
<0001> , <1120> , <1102> ,<1010>
C-plane , A-plane
, R-plane ,
M-plane
|
| Dielectric
constant |
11.58
|
| Lattice
constant |
4.77 A
|
| Tolerance
of orientation |
+/-
0.5 °
|
| Size |
10 x 10
mm , 20 x 20
mm , 30 x 30
mm
2" ,
3" , 4"
Other sizes
available upon
request
|
| Thickness |
330 um
, 430 um ,
0.5 mm or 1
mm
|
| Surface
finish |
one
side or two
sides epi polished
|
| Surface
roughness |
Ra <=
5 A
|
| Package
method |
Single
wafer container
or Ampak cassette |
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