The global demand for ultra-bright blue and green LEDs has driven the development of LED nitride wafer technologies. Among them, sapphire substrate is currently the most common substrate material in GaN epitaxial growth, and it is also the substrate of epitaxial GaN material with [...]
2022-03-25meta-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
2018 TOP 100 US HIGHER EDUCATION R&D EXPENDITURES
post by PAM-XIAMEN date: Jan 03,2020
University is an important research and development subject in the innovation system. In all 912 US universities, PAM-XIAMEN has compiled the ranking data and the name by source of funds to list top [...]
2020-01-03meta-author
Impact of GaN buffer growth conditions on photoluminescence and X-ray diffraction characteristics of MOVPE grown bulk GaN
Properties of metalorganic vapor phase epitaxy (MOVPE) grown GaN bulk layers with varying GaN buffer growth conditions are characterized by low-temperature (6K) photoluminescence (LT-PL) and X-ray diffraction (XRD). [...]
2013-05-09meta-author
According to the latest report from LEDinside, a division of the market research firm TrendForce, 2017-2021 LED Industry Demand and Supply Data Base- 2Q17, mainly analyzes top six LED demand and supply market trend in 2017, including IT display market, lighting market trend, automotive LED market [...]
2017-06-05meta-author
Aluminium gallium arsenide epi wafer (AlGaAs or AlxGa1−xAs) is a semiconductor wafer material with very nearly the same lattice constant as GaAs, but a larger bandgap. The x in the formula stands a number between 0 and 1 – this indicates an arbitrary alloy [...]
2020-07-17meta-author