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GaAs crystal

What we provide:

Item
 Y/N
Item
 Y/N
Item
 Y/N
GaAs crystal
yes
Electronic Grade
yes
N type
yes
GaAs blank
yes
Infrared Grade
yes
P type
yes
GaAs substrate
yes
Cell Grade
yes
Undoped
yes
GaAs epi wafer
yes

GaAs Crystal Substrate

GaAs crystal are cutted into slices, and polishing, the GaAs crystal substrate comes. For specification and details, please visit: Specification of GaAs wafer

GaAs Crystal Epitaxial Growth

We are manufacturing various types of GaAs epi wafer grown by MBE or MOCVD,including LT-GaAs and epi wafer for HEMT,PHEMT and MHEMT.For more details, please visit: epi wafer

Properties of GaAs Crystal

Properties
GaAs
 
Atoms/cm3
4.42 x 1022
 
Atomic Weight
144.63
 
Breakdown Field
approx. 4 x 105
 
Crystal Structure
Zincblende
 
Density (g/cm3)
5.32
 
Dielectric Constant
13.1
 
Effective Density of States in the Conduction Band, Nc (cm-3)
4.7 x 1017
 
Effective Density of States in the Valence Band, Nv (cm-3)
7.0 x 1018
 
Electron Affinity (V)
4.07
 
Energy Gap at 300K (eV)
1.424
 
Intrinsic Carrier Concentration (cm-3)
1.79 x 106
 
Intrinsic Debye Length (microns)
2250
 
Intrinsic Resistivity (ohm-cm)
108
 
Lattice Constant (angstroms)
5.6533
 
Linear Coefficient of Thermal Expansion,
6.86 x 10-6
 
ΔL/L/ΔT (1/deg C)
Melting Point (deg C)
1238
 
Minority Carrier Lifetime (s)
approx. 10-8
 
Mobility (Drift)
8500
 
(cm2/V-s)
µn, electrons
Mobility (Drift)
400
 
(cm2/V-s)
µp, holes
Optical Phonon Energy (eV)
0.035
 
Phonon Mean Free Path (angstroms)
58
 
Specific Heat       
0.35
 
(J/g-deg C)
Thermal Conductivity at 300 K
0.46
 
(W/cm-degC)
Thermal Diffusivity (cm2/sec)
0.24
 
Vapor Pressure (Pa)
100 at 1050 deg C;
 
1 at 900 deg C
 
 
Wavelength
Index
(µm)
2.6
3.3239
2.8
3.3204
3
3.3169
3.2
3.3149
3.4
3.3129
3.6
3.3109
3.8
3.3089
4
3.3069
4.2
3.3057
4.4
3.3045
4.6
3.3034
4.8
3.3022
5
3.301
5.2
3.3001
5.4
3.2991
5.6
3.2982
5.8
3.2972
6
3.2963
6.2
3.2955
6.4
3.2947
6.6
3.2939
6.8
3.2931
7
3.2923
7.2
3.2914
7.4
3.2905
7.6
3.2896
7.8
3.2887
8
3.2878
8.2
3.2868
8.4
3.2859
8.6
3.2849
8.8
3.284
9
3.283
9.2
3.2818
9.4
3.2806
9.6
3.2794
9.8
3.2782
10
3.277
10.2
3.2761
10.4
3.2752
10.6
3.2743
10.8
3.2734
11
3.2725
11.2
3.2713
11.4
3.2701
11.6
3.269
11.8
3.2678
12
3.2666
12.2
3.2651
12.4
3.2635
12.6
3.262
12.8
3.2604
13
3.2589
13.2
3.2573
13.4
3.2557
13.6
3.2541

We also provide LT GaAs.

 

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