HEMTs evolved from Field Effect Transistors (FETs) are suitable for manufacturing monolithic microwave integrated circuits (MMICs).
HEMTs were initially generated to obtain high electron mobility in semiconductor devices at room temperature. The electron mobility of FETs is limited even with high doping levels, so high [...]
2022-07-25メタ著者
PAM XIAMEN offers Yb YAG Ytterbium (Yb) doped Yttrium Aluminium Garnet Laser Crystal.
Ytterbium – Yb:YAG is a very promising laser crystal and is more suitable for diode-pumping than the commonly used Nd-doped YAG crystals. Compared with the traditional Nd:YAG crystal, Yb:YAG crystal has a much wider [...]
2019-03-15メタ著者
LT GaAs semi-insulating layers applied in vertical-cavity surface-emitting lasers
In this paper we report on the optimization of the MBE growth process for obtaining semi-insulating LT-GaAs layers applied in vertical-cavity surface-emitting-lasers. The technological conditions for growingLT-GaAs layers have been found and test processes for growing the laser structure [...]
Indium Arsenide (InAs) wafer can be provided by PAM-XIAMEN with a diameter up to 2 inch and a wide choice in off or exact orientation, high or low concentration and surface processed to optoelectronics industry. InAs wafer is an important III-V narrow band gap [...]
PAM XIAMEN offers Free Standing GaN Single Crystal Substrates with LED grade and LD grade for research or mass production, and our GaN crystal substrates has low dislocation density<=10^5 /cm2 without visible micro defects, the substrate has uniform smooth surface for epi-growth. Below carrier [...]
2019-03-11メタ著者
PAM-XIAMEN offers C-Plane Sapphire Substrate, single side polished or double side polished, please see below spec:
1. Specifications of C-Plane Sapphire Substrate
2” C-plane SSP Sapphire Substrate:
No
Item
Specification
1
Material
High PurityAl2O3
2
Diameter
50.8+0.1mm
3
Thickness
430土15um
4
TTV
≤10μm
5
LTV
≤1.5μm
6
Bow
-10~0μm
7
Warp
≤10μm
8
Primary Flat Length
16.0土1.0mm
9
Front Surface Roughness(Ra)|
Ra≤0.2nm
Back Surface Roughness(Ra)
0.7~1.2μm
11
Primary Flat Orientation
A-plane土0.2°
12
Surface Orientation
C-Plane(0001)
off Angle 0.2o+0.1″(M-axis);0°+0.1″(A-axis)
13
Laser Mark
back side or frontside
14
Package
25pcs/Cassette, Vacuum-sealed, Nitrogen-
[...]
2020-05-20メタ著者
