Q: After MOCVD, do you anneal the wafer for p-GaN activation?
A:Yes! We will anneal the wafer for p-GaN activation
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2018-06-19meta-author
For 4” pss wafer, the light comes out from the p-GaN side not from sapphire, so I can’t do flip chip packaging. Also I don’t know whether laser liftoff is possible for pss wafer. Is it possible you can share any image of the etched surface of pss?
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2018-06-19meta-author
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?
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Q:Dislocation density < 1E8 of GaN on sapphire from what kind of characterization?
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2018-06-19meta-author
Q: What wafer size do you provide with flat sapphire substrate?
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Gallium Arsenide wafers, P/P
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2018-09-13meta-author