Unintentionally doped GaN were grown on Si (111) substrates by metal organic chemical vapor deposition (MOCVD). The high-resolution X-ray diffraction (HRXRD) and Lehighton contactless sheet resistance measuring systems were employed to characterize the quality and sheet resistance (Rs) of GaN epilayer. The threading dislocation density [...]
The Silicon crystal orientations that we often hear are <100>, <110> and <111>(shown as Fig. 1), respectively indicating a crystallographic family. The single crystal silicon structure belongs to cubic crystals, and the <100> crystal orientation family represents six crystal orientations: [100], [010], [001], [100], [0-10], and [...]
2024-02-23meta-author
PAM XIAMEN offers LSAT Crystal Substrates.
SPECIFICATIONS:
Growth method: Czochralski method
Crystal structure: Cubic
Lattice parameter: a = 3.868 A
Melt point (℃): 1840
Density: 6.74(g/cm3)
Hardness: 6.5(mohs)
Dielectric constants: 22
Thermal expansion: 10 x 10-6 /K
Available Size: 10×3,10×5,10×10,15×15,20×15,20×20,Ф15, Ф20,Ф1″ (1 inch),Ф2″ (2 inch), Ф2.6″ (2.6 inch). Special sizes and orientations are available upon request.
Thickness: 0.5mm, 1.0mm
Polishing: Single or double, Epi-face Ra < 0.5 [...]
2019-03-13meta-author
Optical interference effect of a thick absorbing LT-GaAs layer on a Bragg reflector
Near-infrared reflectance spectra of 5 μm thick low-temperature (LT) GaAs films on GaAs/AlAs Bragg reflectors (BRs) have been studied by model calculations as a function of the linear absorption coefficient of the films αf. [...]
PAM XIAMEN offers 4″ Silicon EPI Wafers.
Substrate
EPI
Comment
Size
Type
Res
Ωcm
Surf.
Thick
μm
Type
Res
Ωcm
4″Øx525μm
n- Si:As[111]
0.0010-0.0035
P/E
20
n- Si:P
7±10%
N/N/N+
4″Øx525μm
n- Si:As[111]
0.0010-0.0035
P/E
10
n- Si:P
2±0.4
N/N/N+
4″Øx380μm
n- Si:As[111]
0.001-0.005
P/EOx
21
n- Si:P
150 ±10%
N/N+
4″Øx525μm
n- Si:As[111]
0.0010-0.0035
P/E
22.5
n- Si:P
12±10%
N/N/N+
4″Øx525μm
n- Si:As[111]
0.0010-0.0035
P/E
28.5
n- Si:P
2±10%
N/N/N+
4″Øx525μm
n- Si:As[111]
0.0010-0.0035
P/E
26
n- Si:P
18±10%
N/N/N+
4″Øx525μm
n- Si:As[111]
0.0010-0.0035
P/E
11
n- Si:P
2±10%
N/N/N+
4″Øx525μm
n- Si:As[111]
0.001-0.005
P/E
27
n- Si:P
220 ±10%
N/N+
4″Øx525μm
n- Si:As[111]
0.001-0.005
P/E
27.5
n- Si:P
>250
N/N+
4″Øx525μm
n- Si:As[111]
0.001-0.005
P/E
28
n- Si:P
165 ±10%
N/N+
4″Øx525μm
n- Si:As[111]
0.0010-0.0035
P/E
28
n- Si:P
43688
N/N/N+
4″Øx525μm
n- Si:As[111]
0.0010-0.0035
P/E
9-11
n- Si:P
43468
N/N/N+
4″Øx525μm
n- Si:As[111]
0.0010-0.0035
P/E
28
n- Si:P
11±10%
N/N/N+
4″Øx525μm
n- Si:As[111]
0.0010-0.0035
P/E
8-12
n- Si:P
43468
N/N/N+
4″Øx525μm
n- Si:As[111]
0.0010-0.0035
P/E
30
n- Si:P
11±10%
N/N/N/N+
4″Øx525μm
n- Si:As[111]
0.0010-0.0035
P/E
15
n- Si:P
4±10%
N/N/N/N+
4″Øx525μm
n- Si:As[111]
0.0010-0.0035
P/E
5
n- Si:P
1.5±10%
N/N/N/N+
4″Øx525μm
n- [...]
2019-03-08meta-author
PAM-XIAMEN offers M Plane Si-GaN Freestanding GaN Substrate
Item
PAM-FS-GAN M-SI
Dimension
5 x 10 mm2 or 5 x 20 mm2
Thickness
380+/-50um
Orientation
M plane (1-100) off angle toward A-axis 0 ±0.5°
M plane (1-100) off angle toward C-axis -1 ±0.2°
Conduction Type
Semi-Insulating
Resistivity (300K)
>106 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
≤ 5 x 10 6cm-2
Macro Defect Density
0 cm-2
Useable Area
> 90% (edge exclusion)
Package
each in single wafer container, under nitrogen atmosphere, packed in class 100 clean room
For more information, please contact us email at victorchan@powerwaywafer.com and powerwaymaterial@gmail.com
2020-08-20meta-author