Q:The ideal waverlength for us is 465 nm, can you offer?.
A:It is no problem, but you should know the wavelength should be a range, what we will offer you 465+/-2nm.
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Q: What wafer size do you provide with 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.
2018-06-19meta-author
Q:I want to know the dopant concentration of SiC substrate that you normally provide ? What is the maximum Nitrogen dopant concentration that you can provide? I am looking for heavily nitrogen doped SiC wafers?
Q:I want to know the dopant concentration of SiC substrate that you normally provide ? What is the maximum Nitrogen dopant concentration that you can provide? I am looking for heavily nitrogen doped SiC wafers? A: Our Nitrogen dopant concentration is 1E18/cm3-1E19/cm3, which belongs to heavy dopant.
2018-06-19meta-author
Q: Can you offer some SiC(0001) wafers with low but intentionnal misorientation in the 1° to 2° range?
Q: Can you offer some SiC(0001) wafers with low but intentionnal misorientation in the 1° to 2° range? A: We can offer misorientation in low degree, no problem.
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?
Q: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 [...]
2018-06-19meta-author
Q:Could you tell us also what type of 4-H polytype SiC sudstrate you are able to provide?
Q:Could you tell us also what type of 4-H polytype SiC sudstrate you are able to provide? A: Sure.
2018-06-19meta-author
I am not sure whether practically LLO can be done on the PSS given it is not a flat surface
Q: I am not sure whether practically LLO can be done on the PSS given it is not a flat surface A: “laser lift-off” actually is according to “NL layer” as below image. If the NL layer is GaN layer, when it is heating to constant high [...]
2018-06-19meta-author