Light–Output Enhancement of Nano-Roughened GaN Laser Lift-Off Light-Emitting Diodes Formed by ICP Dry Etching
In this paper, we report the fabrication and characteristics of nano-roughened GaN laser lift-off (LLO) light-emitting diodes (LEDs) with different scale surface roughness. The surface roughness of devices was controlled by [...]
2013-03-29meta-author
PAM-P01(CZT Planar Detector) series are developed from CZT planar detector. Benefit from advanced CZT technology, we has developed CZT planar detectors with energy resolution<7% or 7%~10% @59.5keV under 25deg. for dose counting, spectrum acquisition and imaging for dosimeter, spectrometer and nuclear medicine.
CZT planar detector
1. [...]
2019-04-23meta-author
PAM XIAMEN offers 4″ FZ N type Si wafer, which can be used for research on silicon quantum devices.
GQ23b Silicon wafers, per SEMI Prime, P/P
4″Ø×525±10μm,
FZ n-type Si:P
[100]±0.5°,
Ro=(7,000-10,000)Ohmcm,
TTV<5μm, Bow<30μm, Warp<30μm,
Both-sides-polished,
SEMI Flat one: Length 32.5±2mm @ 110,
Sealed in Empak or equivalent cassette,
MCC Lifetime>1,000μs.
For more information, [...]
2021-03-19meta-author
Bulk GaN cost to fall 60% to $730 for 2″ substrate by 2020
Wide-bandgap semiconductor materials such as gallium nitride (GaN) offer far higher performance than traditional silicon but cost significantly more. However, by 2020 GaN costs will drop enough for it to become competitive [...]
2012-11-09meta-author
PAM XIAMEN offers Aluminum Oxide Substrate Al2O3.
Aluminum Oxide Ceramic Substrates Porperties
Purity (wt%)
0.96
0.996
0.996
0.999
Density (g/cm3)
> 3.75
3.88
3.87
3.92
Thermal conductivity (W/m. K)
24
34.7
35
35
Thermal Expansion (x10-6/oC)
< 7.7
7~8.3
7~8.3
8.1
Dielectric Strength (Kv/mm)
> 14
23.64
23.64
8.7
Dielectric Constant (at 1MHZ)
9.8
9.9
9.9
9.8
Loss Tangent (x10-4 @1MHZ)
4
1
1
< 1
Volume Resistivity (ohm-m)
> 1013 at [...]
2019-04-18meta-author
Semiconductor lasers in the near-infrared band (760-1060nm) based on GaAs substrates are the most mature and most widely used, and have already been commercialized. We can supply GaAs laser diode wafer for a wavelength of 940nm. Moreover, a variety of laser wafers with different wavelengths [...]
2022-07-28meta-author