This past year I have been collecting burst pressure data on pnc-Si and NPN. The data for 30nm pnc-Si came from my previous post, “Wafer 1059: Burst Pressure Analysis”, which also includes a wafer map. This wafer had 7% porosity and an average pore diameter of 20nm. I tested square window sizes with side lengths of 0.1mm,…
The following data is from analysis of Wafer #1059, consisting of 30nm pnc-Si with 7% porosity and an average pore diameter of 28nm. Square window sizes with sides lengths of 0.1mm, 0.3mm, 0.5mm, 0.7mm, and 0.9mm were tested. For 1.1mm x 1.1mm windows, burst pressures could not be determined, as these windows did not etch…
This is a follow up to Josh’s post, “Continued Au Separations with SiN-NP wafer #’s 1029 and 1030”, and seems to explain why we initially got an S value greater than one during our gold separations. We conducted tests to see if the colored centrifuge tubes were at fault for our seemingly large filtrate absorbance…
This is a follow up to my previous post, “Burst Pressure Probability II”. I burst 111, 30nm thick single window pnc-SI TEM chips of ten different window sizes, to measure the burst pressure of chips with varying dimensions. Although area is a major determining factor in the pressure at which the windows break, two different windows of…
This is a follow up to Mohammad’s previous posts: “Burst Pressure”, and “Burst Pressure Probability”. Josh and I had Mohammad’s wafer remade, and burst several 30nm thick pnc-Si TEM chips to add to Mohammad’s earlier data. Pore size still needs to be verified using the TEM. Burst pressure data was gathered for chips with constant perimeter,…
Permeance Testing Sepcons were built with 500 nm 5-slot chips. Permeance tests were performed on Samples A-C. Nitrogen gas was pushed through the membrane at a given pressure, and the height on the flow meter tube (green graduated column pictured below) was recorded according to the location of the center of the silver ball. No units…