Q: What wafer size do you provide with flat sapphire substrate?
A:Currently we still can offer 2″ wafer on flat sapphire substrate.
Leading manufacturer of compound semiconductor material in China
Q: What wafer size do you provide with flat sapphire substrate?
A:Currently we still can offer 2″ wafer on flat sapphire substrate.
Q: Is it possible to use 4” non-patterned sapphire for fabrication? A:Not possible, currently all the manufacturers swift to patterned sapphire based wafer, including us, however if you really need flat sapphire based wafer, we we can offer 2″ size.
Q: After MOCVD, do you anneal the wafer for p-GaN activation? A:Yes! We will anneal the wafer for p-GaN activation
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:We need thickness,Semi-insulating SiC substrate, but your standard thickness is different, can you offer? A: Sure, we can offer unregular thickness, it is no problem.
Q:We are using 40×40 mil size and 45×45 mil size chips for 1W . And 45×22 or 38x22mil size for 0,5w . Eff. is min. 120lm/w , package form is 3535 ceramic no lens flat type, and 5050 smd flat type.Cct 6500k, cri min 70-75, [...]