Regarding blue LED epi wafer, after MOCVD, do you anneal the wafer for p-GaN activation?
Q: Regarding blue LED epi wafer, after MOCVD, do you anneal the wafer for p-GaN activation? A:Yes!
Q: Regarding blue LED epi wafer, after MOCVD, do you anneal the wafer for p-GaN activation? A:Yes!
Q: The epitaxial wafer on pss substrate is attractive to me, so I want to know the overall efficiency it can deliver. Could you please tell me an efficiency number (lm/w or cd/A or EQE) of the device based on a structure similar to the picture in your email? A:Please [...]
Q: Regarding LED epi wafer,does the price include fabrication of p and n metal contacts? If not, can you fabricate p and n contacts plus SiO2 passivation based on my design? This can turn to a bigger project. A: Sorry, we can not offer fabrication of p and n metal contacts, [...]
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 carbon layer is appeared due [...]
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