Q: What is the minimum batch size for blue LED wafers on 4 inch sapphire (patterned sapphire)?
A:5pcs is ok, but the price would be higher.
Leading manufacturer of compound semiconductor material in China
Q: What is the minimum batch size for blue LED wafers on 4 inch sapphire (patterned sapphire)?
A:5pcs is ok, but the price would be higher.
Q: What wafer size do you provide with flat sapphire substrate? A:Currently we still can offer 2″ wafer on flat sapphire substrate.
Q:Do these 2” PSS LED wafers have the same epi-stack as the 4” PSS? If not, please send me the diagram with thicknesses. Wavelength can be same: central 455nm A: the 2″ detail layer thickness and structure is same as 4″, no any difference. Wavelength:455nm+/-5nm [...]
Q:In the test report of blue LED wafers,it shows Vf and IV (mcd). How is this mcd being measured without actually processing the wafer into devices? A:We use prober equipment and contact positive and negative pole, connect current, and then get the voltage and IV.
Q: Could you please provide information about standard epi structure of InGaAsP/InP wafer? A: Here we only can offer you general structure: Layer Material 6 InP 5 GaInAs 4 GaInAsP 3 InP 2 AlGaInAs MQW PL 1500-1560nm 1 InP buffer InP substrate
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.
Q:For Si-doped GaN, what are the resistivity and mobility? A:Mobility:150-200Resistivity<0.05ohm.cm,