Q:As to the wafer dicing – is it possible to get a non-rectangular dicing? such as 6mm x 8mm size?
A:No problem, any size is workable.
2018-06-19meta-author
Q: SiC wafer reclaim, can you gurantee surface roughness<=0.3nm?
A: Sure, no problem
2018-06-19meta-author
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, [...]
2018-06-19meta-author
Q:For Si-doped GaN, what are the resistivity and mobility?
A:Mobility:150-200Resistivity<0.05ohm.cm,
2018-06-19meta-author
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 [...]
2018-06-19meta-author
PAM-XIAMEN can supply GaAs wafer with EPD less than 5000/cm2.
Q: Could you please advise guaranteed EPD for below substrate and epi?
Gallium Arsenide wafers, P/E 2″Ø×380±25µm,
LEC SI c doped GaAs:-[100]±0.5°, n-type Ro=(0.8E8-0.9E8)Ohmcm,
One-side-polished, back-side matte etched, 2 Flats,
LT-GaAs EPI: 1-2µm, Resistivity >1E7 Ohm-cm, [...]
2018-09-06meta-author