In the production process of single crystal silicon, impurities such as carbon and oxygen are inevitably introduced due to factors such as raw materials and methods, which directly affect the performance of single crystal silicon. For example, the annealed silicon wafer supplied by us, [...]
2022-06-29meta-author
From a solid-state device perspective, aluminum arsenide (AlAs) has great potential, especially because alloys of AlAs and GaAs can provide material for high-speed electronic and optoelectronic devices. Moreover, GaAs / AlAs quantum well structures are widely used in the fabrication of III-V epitaxial wafer. [...]
Transmitance-GaN material-TEST REPORT
A test report is necessary to show the compliance between custom description and our final wafers data. We will test the wafer characerization by equipment before shipment, testing surface roughness by atomic force microscope, type by Roman spectra instrument, resistivity by non-contact [...]
2018-08-14meta-author
PAM XIAMEN offers 6″FZ Prime Silicon Wafer.
Silicon wafers, per SEMI Prime,
P/E 6″ {150.0±0.5mm}Ø×1,000±25µm,
FZ p-type Si:B[111]±0.5°, Ro > 5,000 Ohmcm,
One-side-polished, Particles: <10@≥0.3µm,
back-side etched, One SEMI Flat (57.5mm), Edges: rounded,
Sealed in Empak or equivalent cassette,
BOW<30µm, MCCLifetime>1000µs.
For more information, [...]
2019-07-05meta-author
PAM XIAMEN offers Nd YAG Nd Doped Yttrium Aluminium Garnet Laser Crystal.
Main Specifications
dimensional tolerance:
Dia:< +/-0.025 mm ,length: < +/-0.5 mm
flatness:
λ/8 @633nm
Surface fineness:
10/5
flatness:
20 arc sec.
verticality:
5 arc min
orientation:
<111> crystalline direction,< +/-0.5°
coating film:
AR coating, HR Coating
reflect:
R<0.2%@1064, HR:R>99.8%@1064,R<5%@808nm,
clear aperture:
>95% central area
wavefront distortion:
<7mm diameter : <λ/8 per inch @ 633nm,
7mm diameter : <λ/10per inch @ 633nm
Publications related to YAG laser crystals:
[1]
J. E. Geusic et al., “Laser oscillations in Nd-doped yttrium aluminum, yttrium gallium and gadolinium garnets”, Appl. Phys. Lett. 4 (10), 182 (1964)
[2]
D. Y. Shen et al., “Highly efficient in-band pumped Er:YAG laser [...]
2019-03-15meta-author
PAM XIAMEN offers YAG( undoped ,Ce-doped,Nd-doped).
YAG (undoped)
Undoped YAG is a substrate material that can be used for UV and IR optics. Sapphire has been the substrate of choice for these applications; however it is difficult to polish Sapphire to a 10-5 scratch-dig [...]
2019-05-21meta-author