No individual meetings today …

Summary My analysis of npMgF2 has relied heavily on both tomogram and segmentation processes. The tomogram generation has thus far been sufficient, giving enough detail to our eye to identify different structures, but turning the tomograms into 3d models has been a lot more labor intensive. Using a neural network classifier (Weka, out of a…

Karl and I attempted once again to filter particles with the SiN-NP 5 slot SEPCON chips.  (wafer # 1019, 27% porosity, avg. pore dia. – 54 nm in the center, 30%, 61 nm at the perimeter, histograms below)   We started trying to first pass 20 nm red fluorospheres, then block 100 nm yellow fluorospheres,…

I hope to bring this question to our group meeting. As we discussed before, we know that Cl- can be absorbed at the gold surface to screen the applied positive charge. We are using R6G as the filtration species, which is positively charged. So we must either use DI water as the buffer solution (we…

In this post, we’ll discuss a little bit about how would the deposition temperature affect the pore formation and pore morphology. I first show some previous results of the effect of deposition temperature on the porosity and pore size from Dave. From this plot, it shows that the relative low deposition temperature barely affects the…

I mostly finished re-processing the images with new method of using pore processor. The images of molar flow/porosity dependence with older and newer processed data are below. Older image: New image: They don’t look much different. Also you can not compare them point by point because the porosity is different for both images after re-processing….

Using a wafer with a stack of Si-25nm(thermOx)-40nm(SiN)-50nm(PNCSi), lift-off was achieved on a small scale. First the SiN was etched using the standard process Simpore has developed, this also removed most/all of the PNCSi. The standard uChem process was then followed for SU8 application. A negative mask with 10um lines and 50um spaces was chosen…