Q: After MOCVD, do you anneal the wafer for p-GaN activation?
A:Yes! We will anneal the wafer for p-GaN activation
Q: After MOCVD, do you anneal the wafer for p-GaN activation?
A:Yes! We will anneal the wafer for p-GaN activation
Q:For pss wafer, the light comes out from the p-GaN side not from sapphire, so I can’t do flipchip packaging. Also I don’t know whether laser liftoff is possible for pss wafer. A:LED light is sourcing from mqw light, emitting in all directions, p-GaN is [...]
Q:Can you supply 4″ AlGaAs epi wafers for IR LEDs? A:Yes, we can offer 850nm or 620nm for 4” size.
Q: Regarding your red LED epiwafers, what about the top layer or cap layer on the epiwafer structure? A: As before we have p+GaAs(several nanometers only) in the top layer, however these two years, due to technology innovation, and all foundry remove this layer [...]
Q:Do these 2” PSS LED wafers have the same epi-stack as the 4” PSS? If not, please send me the diagram with thicknesses. Wavelength can be same: central 455nm A: the 2″ detail layer thickness and structure is same as 4″, no any difference. Wavelength:455nm+/-5nm [...]
PAM-XIAMEN can supply GaAs wafer with EPD less than 5000/cm2. Q: Could you please advise guaranteed EPD for below substrate and epi? Gallium Arsenide wafers, P/E 2″Ø×380±25µm, LEC SI c doped GaAs:-[100]±0.5°, n-type Ro=(0.8E8-0.9E8)Ohmcm, One-side-polished, back-side matte etched, 2 Flats, LT-GaAs EPI: 1-2µm, Resistivity >1E7 Ohm-cm, [...]
Q:Do you sell SiC wafers that are not (0001) plane? For example, (11-20)? A:We can offer a-plane, but the size would be smaller,and should require quantity, do you have size requirement?
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