Capillary Tubing and Adapter

The purpose of this post is to see if there is a pattern in the Pore Density vs. Pore Radius graphs at certain manufacturing conditions. The following wafers all have widths of 15nm and RTPs of 1000. The porosities range from 6.48% to 8.33%. **** note: the y-axis label should actually read “pore density (#/nm2)”…

We deposited a 20/60/20 nm OSO stack for an ellipsometry test.  We decided to try annealing the un-patterned wafer in the RTP at 1050 C with no susceptor with a 100 C/s ramp for 60 s. The attached SEM images show pores forming.  With these encouraging results, we are considering depositing 40, 50 and 60…

I measured burst pressures on two non-unifrom wafers w391, w393. They have lots of pinholes (especially w391) but the pressure they withstand is pretty high. I expected it to be much lower after looking at the membranes in the microscope.

As we run our CCD (Central Composite Design for Optimizing SERS Substrates, SERS Measurements on 150C, 250C, 350C 1236 npMgF2), we have also been gathering TEM/SEM structural information about pore distributions and MgF2 grain structure. This post contains images about materials and compares them to information we know about wafer 1085, one of our original MgF2…

In a previous post I showed that a colorimetric assay using sulfuric acid and phenol can be used to establish a linear relationship between known detergent concentrations and absorbance values. This assay proves helpful in the project related to Mark Dumont’s work in that it will allow detection of small quantities of detergents that pass…