PAM-XIAMEN's products are widely used all over the world. We are always dedicated to supplying every customer reliable semiconductor products of high quality at very competitive prices. We provide wafer of N+ or P+ GaAs epi with AlAs layer on N+ or P+ GaAs substrate as follows:
No.1 spec:2-inch p+ GaAs Epi with AlAs layer on p+ GaAs substrate.
Structure(from bottom to top):
Layer0: 350 um p+ semi-conducting GaAs substrate Air Max 270 Trainers , >E18 doping, any dopant type
Layer1: 300 nm p+ semi-conducting GaAs buffer layer, >E18 doping concentration Air Max 270 Ultramarine , any dopant type
Layer2: 10 nm AlAs undoped (the AlAs layer must be grown using As2 [dimer] and NOT As4 [tetramer]),
Layer3: 2 um p+ semi-conducting GaAs epi layer, >E18 doping concentration Air Max 270 Ocean Bliss , any dopant type
No.2 spec: 2-inch n+ GaAs Epi with AlAs layer on n+ GaAs substrate.
Structure(from bottom to top):
Layer0: 350 um n+ semi-conducting GaAs substrate, Si-doping with >E18 doping
Layer1: 300 nm n+ semi-conducting GaAs buffer layer, Si-doping with >E18 doping concentration
Layer2: 10 nm AlAs undoped (the AlAs layer must be grown using As2 [dimer] and NOT As4 [tetramer]) Air Max 270 Coral Stardust ,
Layer3: 2 um n+ semi-conducting GaAs epi layer, Si-doping with >E18 doping concentration
Anisotropy of the Thermal Conductivity in GaAsAlAs Superlattices
We combine the transient thermal grating and time-domain thermoreflectance techniques to characterize the anisotropic thermal conductivities of GaAsAlAs superlattices from the same wafer. The transient grating technique is sensitive only to the in-plane thermal conductivity, while time-domain thermoreflectance is sensitive to the thermal conductivity in the cross-plane direction Air Max 270 Dusty Cactus , making them a powerful combination to address the challenges associated with characterizing anisotropic heat conduction in thin films. We compare the experimental results from the GaAsAlAs superlattices with first-principles calculations and previous measurements of SiGe SLs. The measured anisotropy is smaller than that of SiGe SLs, consistent with both the mass-mismatch picture of interface scattering and with the results of calculations from density-functional perturbation theory with interface mixing included.
Source: PAM-XIAMEN, American Chemical Society
For more information Air Max 270 Teal , please visit our website:www.powerwaywafer, send us email at sales@powerwaywafer or powerwaymaterial@gmail
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