Barrett had discovered that growing endothelial cells on pnc-si or tranwells causes vacuoles to form. The vacuoles on pnc-si formed only on the free standing areas of the membrane where there are open pores. The background on pnc-si chips showed negligible vacuole formation. The density of vacuoles on pnc-si was almost two fold higher than…
In the past, we have seen allyl alcohol treatment on silicon chips helps retain a low contact angle longer than a purely plasma treated sample does. This helps us maintain gold flow in a sepcon format for a longer period of time compared to untreated or a purely plasma treated sample. Untreated samples also will…
Dave deposited a series of wafers last week at different temperatures. SC 166 -SC 173 were deposited between RT and 300C. These wafers had Jess’ E.O mask pattern ( circular sepcon) with single , 3,6 and 9 squares. The wafers were mostly pinhole free.In order to determine if deposition temperature affected the nature/ strength of…
In an effort to understand the material property using burst pressure, a few key variables have to be analyzed to determine their effect on burst pressure. These variables are: 1) Shape : a) Maximum Dimension of the slot. b) Minimum Dimension of the slot. 2) Active Area. 3) Effective circumference. 4) Number of features on…
Last week Dave deposited sep-cons ( cell culture mask) with 3 different thickness namely the regular 15nm , 30 nm and 50nm ( SC 142, 143,144). These wafers were characterized and it was noted that the 15 nm had a high pinhole density and the 30 and 50 nm films were low pinhole density. The…
Charles designed a macro for excel to represent the data gathered from wafer characterization, in a visual format. It is built on VB platform and runs off Microsoft excel. The data is input in a simple fashion by selecting the relevant field from a drop down box for columns representing different positions (see fig. 1)….
Based on Barrett’s array set up for discoloration, I set up an array experiment to check the discoloration effects between the new and old system ( 2e-7,AJA vs the older 7e-7 CVC ). The wafers from each had a bit of the wafer with different treatments (900C RTP,1000C RTP and Amorphous). To incorporate the maximum…
I performed a test study to see the effect of microbial media’s : LB and BHI Broth on the membrane to check for discoloration. LB Broth : Lysogeny broth,Luria broth or Luria-Bertani broth. Obtained from Sigma and made by dissolving 20g in 1 l of D.H2O and autoclaving at 121C for 15 mins. LB is…