PAM-XIAMEN offers PSS patterned sapphire substrate for high brightness GaN based LED EPI growing application. The patterned sapphire substrate wafer is to grow a dry etching mask on the sapphire substrate. The mask is engraved by a standard photolithography process. Then, the sapphire is etched by ICP etching [...]
2021-04-28meta-author
PAM-XIAMEN offers 2inch or 4inch red infrared AlGaAs / GaAs LED epi wafer with wavelength 850-880 nm and 890-910nm:
1. Red Infrared AlGaAs / GaAs LED Epi Wafer
PAM-190723-LED
Structure
Thickness, um
Type
Composition
CC, cm-3
Wide-gap window
1
р
AlхGa1-хAs (х=0,25-0,3)
(2-5) ∙1018
Barrier layer
0.06
р
AlхGa1-хAs (х=0,25-0,3)
(0.8-1) ∙1018
Active layer
–
GaAs
undoped
–
Al0,2Ga0,8As
Barrier layer
0.06
n
AlхGa1-хAs (х=0,25-0,3)
(0.5-1) ∙1017
Wide-gap window
6
n
AlхGa1-хAs
(1-2)∙1018
(х=0,3-0,35)
Stop layer
0.1
–
AlхGa1-хAs
–
(х=0,9-1)
Buffer layer
–
n
GaAs
–
Substrate
–
n+
GaAs
–
2. Where is the [...]
2020-05-18meta-author
Cree Recalls 112,500 LED T8 Tube Lights in North America Over Burn Hazard
Recall date: AUGUST 25, 2016
Recall number: 16-252
Recall Summary
Name of product:
Cree® LED T8 Replacement Lamps
Hazard:
The recalled lamps can overheat and melt, posing a burn hazard.
Cree LED tube lights being recalled in North America. (Cree/LEDinside)
Remedy:
View Details
Refund
Consumer [...]
2016-08-30meta-author
A new solution technique to grow SiC nanowires/nanorods was developed by simply heating Fe–Si melt on a graphite plate in argon atmosphere to 1600 °C for 3 and 6 h. SiC nanowires/nanorods with diameters of 100 nm and lengths of several tens of micrometres were [...]
2019-11-15meta-author
PAM XIAMEN offers 4″ CZ Prime Silicon Wafer.
4inch Prime CZ-Si wafer 4 inch (+/- 0.5 mm), thickness = 200 ± 25 µm,
orientation (100)(+/-0.5度),
2-side polished,
p or n type (no matter) ,
? Ohm cm (no matter),
Particle: 0.33µm, <qty30
ttv ≤ [...]
2019-06-24meta-author
PAM XIAMEN offers (100) orientation Silicon Substrates.
Below is just a small selection. Let us know if you can use or if we can quote you on another spec.
Item
Material
Orient.
Diam
(mm)
Thck
(μm)
Surf.
Resistivity
Ωcm
Comment
PAM2841
Intrinsic Si:-
[100]
4″
300
P/E
FZ 16,000-20,000
SEMI Prime, 1Flat, Empak cst, Back-side polish is imperfect
PAM2842
Intrinsic Si:-
[100]
4″
500
P/E
FZ 13,000-20,000
SEMI Prime, 1Flat, Empak cst, TTV<5μm, [...]
2019-02-22meta-author