Q: What wafer size do you provide with flat sapphire substrate?
A:Currently we still can offer 2″ wafer on flat sapphire substrate.
Q: What wafer size do you provide with flat sapphire substrate?
A:Currently we still can offer 2″ wafer on flat sapphire substrate.
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:Can you supply 4″ AlGaAs epi wafers for IR LEDs? A:Yes, we can offer 850nm or 620nm for 4” size.
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?
Q:What atomic ratio for Si/C in SiC ? A:Atomic ratio for Si/C in SiC is 1:1
Q: What is the highest temperature and the highest thermal shock that the wafers can withstand? A: At the temperatures higher than 1000 C on the free surface of Si-face of 6H-SiC (0001) the carbon segregation properties are started so that during short time the thin [...]
Q:I was wondering if you carried any semi-insulating(not doped)SiC or single crystal HPSI SiC? A: For our semi-insulating SiC substrate, it is V doped, we can not offer High Purity semi-insulating SiC, however we can offer undoped SiC if your quantity is good.
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