What is silicon made of?
Silicon is made from silicon dioxide, or silica – found in nature as quartz, or common beach sand.
First, the silica is put into a Silicon Furnace, where a carbon electrical arc reacts at high temperatures to drive the oxygen out [...]
Xiamen Powerway Advanced Material Co.,Ltd., a leading supplier of GaAs Epi wafer and other related products and services announced the new availability of size 2″-4” is on mass production in 2017. This new product represents a natural addition to PAM-XIAMEN’s product line. Dr. Shaka, [...]
2017-06-29meta-author
Epitaxial GaN template grown on Al2O3 (sapphire) substrate and customizable stacks are available with high quality and low defect density. Attached are a list of several types of GaN thin film on sapphire substrate wafers with different thicknesses, carrier types, and capping layers that [...]
2022-01-19meta-author
PAM XIAMEN offers MgAl2O4 Magnesium Aluminate Crystal substrate.
Magnesium aluminate (spinel) single crystals are widely used in ultrasonic and microwave material and device related epitaxial growth. We also offer polycrystalline spinel optical windows.
Crystal Structure: Cubic
Lattice parameter: a = 8.085 A
Melting point (℃): 2130℃
Density: 3.64 g/cm3
Hardness: 8 Mohs
Available orientations: <100>, <111>, <110> [...]
2019-03-14meta-author
Getting to 450 mm Wafer Sooner
As device circuits continue to get smaller, the wafers that they are made from are getting larger — again. A few years ago device manufacturers — both vertically integrated companies and independent foundries — pushed maximum wafer diameters from [...]
2013-03-14meta-author
PAM-XIAMEN can offer GaAs epiwafer (gallium arsenide epiwafer) with p-type & n-type AlGaAs multilayer for VCSEL laser application. The specifications of GaAs epiwafer are as follow:
1. Specifications of GaAs Epiwafer with AlGaAs Multilayers
VCSEL, 980nm, GaAs epiwafer, 4″size
PAM210208
Layer No.
Material
Group
Repeat
Mole Fraction(x)
Strain(ppm)
PL(nm)
Thickness(nm)
Dopant
32
GaAs
–
–
–
–
–
156
C
31
Al(x)GaAs
–
–
0.04
–
–
50.5
C
30
Al(x)GaAs
–
–
0.87->0.04
–
–
20
C
29
Al(x)GaAs
–
–
0.87
–
–
59.7
C
28
Al(x)GaAs
–
16
0.04->0.87
–
–
20
C
27
Al(x)GaAs
–
0.04
–
–
51.5
C
26
Al(x)GaAs
–
0.87->0.04
–
–
20
C
25
Al(x)GaAs
–
0.87
–
–
59.7
C
24
Al(x)GaAs
–
–
0.04->0.87
–
–
20
C
23
Al(x)GaAs
–
–
0.04
–
–
32.9
C
22
Al(x)GaAs
–
–
0.80->0.04
–
–
20
C
21
Al(x)GaAs
–
–
0.98
–
–
20
C
20
Al(x)GaAs
–
–
0.8
–
–
61.6
C
19
GaAsP
–
–
–
–
–
–
UD
18
In(x)GaAs
–
–
–
–
970nm
–
UD
17
GaAsP
–
–
–
–
–
–
UD
16
In(x)GaAs
–
–
–
–
970nm
–
UD
15
GaAsP
–
–
–
–
–
–
UD
14
In(x)GaAs
–
–
–
–
970nm
–
UD
13
GaAsP
–
–
–
–
–
–
UD
12
Al(x)GaAs
–
–
0.87
–
–
59.7
Si
11
Al(x)GaAs
–
–
0.04->0.87
–
–
20
Si
10
Al(x)GaAs
–
–
0.04
–
–
51.5
Si
9
Al(x)GaAs
–
–
0.87->0.04
–
–
20
Si
8
Al(x)GaAs
–
6
0.87
–
–
59.7
Si
7
Al(x)GaAs
–
0.04->0.87
–
–
20
Si
6
Al(x)GaAs
–
0.04
–
–
51.5
Si
5
Al(x)GaAs
–
30
0.92->0.04
–
–
20
Si
4
Al(x)GaAs
–
0.92
–
–
59.8
Si
3
Al(x)GaAs
–
0.04->0.92
–
–
20
Si
2
Al(x)GaAs
–
0.04
–
–
51.5
Si
1
GaAs
–
–
–
–
–
500
Si
4 inch GaAs substrate Si doped; [...]
2021-04-02meta-author