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 : 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 [...]
2018-06-19meta-author
Q: Please let us know if you could supply below wafer, qty 25/50/300.
Gallium Arsenide wafers, P/P
150.00±0.25 mm) 6″Ø×650±25µm,
VGF SI undoped GaAs:-[100-2.0°towards[110]]±0.5°,
u > 4,000cm²/Vs,
Both-sides-polished, 1 Flat 57.5±2.5 mm @ 110±°1,
TTV<7µm, BOW<4µm, Warp<10µm, TIR<6µm,
Certificate: obligatory, Sealed under nitrogen in single wafer cassette
A: Yes, will check the [...]
2018-09-13meta-author
Q:Do you offer monocrystalline SiC or polycrystalline SiC?
A:We offer monocrystalline SiC currently.
2018-06-19meta-author
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.
2018-06-19meta-author
Q:Our application is for microwave annealing. Therefore, the silicon carbide must be able to absorb microwaves?
A:Since the dielectric constant of 6H and 4H are large, so if SiC wafer is as absorbing materials, mainly to achieve through the structure design of Electromagnetic match.I don’t [...]
2018-06-19meta-author