Ambient stability of wet chemically passivated germanium wafer for crystalline solar cells
Surface passivation has been recognized as a crucial step in the evaluation of minority carrier lifetime of photovoltaic materials as well as in the fabrication of high efficient solar cells. Dilute acids of [...]
PAM-XIAMEN, one of leading GaN substrate manufacturers, offers 10*10mm2 N-Type Freestanding GaN Substrate. To get more specific information please see the table below:
1. N-Type Freestanding GaN Substrate Specification
Item
PAM-FS-GAN-50-N
Dimension
10 x 10.5 mm2
Thickness
380+/-50um
Orientation
C plane (0001) off angle toward M-axis 0.35 ±0.15°
Conduction Type
N-type / Si Doped
Resistivity (300K)
< 0.05 Ω·cm
TTV
≤ 10 µm
BOW
BOW ≤ 10 µm
Surface Roughness:
Front side: Ra<0.2nm, epi-ready;
Back side: Fine Ground or polished.
Dislocation Density
≤5x 106 cm-2 (calculated by CL)*
Macro Defect Density
0 cm-2
Useable Area
> 90% (edge exclusion)
Package
each in single wafer container, under nitrogen atmosphere, packed in [...]
2020-08-17meta-author
PAM XIAMEN offers DyScO3/GdScO3//TbScO3 crystal.
Crystal
Structure /Lattice Constant(A)
MP oC
Density, g/cm3
Growth Tech
DyScO3
Orthorombic a=5.44 b=5.71 c=7.89
2127
6.9
CZ
GdScO3
Orthorombic a=5.45 b=5.75 c=7.93
2127
6.6
CZ
TbScO3
Orthorhombic, a = 5.4543, b = 5.7233 c = 7.9147
2127
6.6
CZ
DyScO3 (110) 5x5x0.5mm 1sp (PAM210322-DYSCO3)
DyScO3 (110) 5x5x0.5mm 1sp”
DyScO3 (110) 5x5x0.5mm 2sp
DyScO3 (110) 10x10x0.5mm 1sp
DyScO3 (110) 10x10x0.5mm 2sp
DyScO3 (001) 10x10x0.5mm 1sp [...]
2019-05-20meta-author
Advantech Wireless releases GaN whitepaper
The company’s paper discusses gallium nitride based solid state power amplifiers for satellite communication
Advantech Wireless, a Canadian-based manufacturer of broadcast-quality Satellite, RF Equipment and Microwave Systems has released a new whitepaper titled, “A new generation of Gallium Nitride (GaN) based [...]
2012-08-30meta-author
PAM XIAMEN is comparable to the UK IQE to build Asian VCSEL epitaxial core supply chain
Xiamen Powerway focuses on high-end compound semiconductor epitaxial R&D and manufacturing.
In 2018, the 4-inch and 6-inch VCSELs were mass-produced and entered the mainstream chip manufacturers in Taiwan. Utilizing state-of-the-art [...]
2019-01-21meta-author
Effect of annealing on the residual stress and strain distribution in CdZnTe wafers
The effect of annealing on residual stress and strain distribution in CdZnTe wafers was studied based using an X-ray diffraction (XRD) method. The results proved the effectiveness of annealing on the reduction [...]