Cleaning and Strength of 1 micron thick SiN
Hi Guys,
I thought this might be interesting, especially with the interest in SiN filters. While playing around with the SiN membranes for my project over in ChemE, I fought that the 1 micron SiN is surprisingly strong and that I can place our silicone gaskets onto the membrane and remove it without damage. By placing the silicon gaskets onto the membrane, you can also clean the membrane of most large debris that are greater than 1 micron.
Video: Debris Removal
Also, I was curious about how much weight I can place on the SiN before it breaks. Any guesses about how much weight it can handle? I’ll upload the pictures showing the total weight it can handle later. Below are the pictures attached showing the weight on the free standing SiN. It finally breaks at 180 grams while I was remove the weights.
Chip Specs: 20 x 17 x 0.3 mm
Membrane Specs: 16 x 13 x 0.001 mm with 25% porosity
Silicone Specs: 12.7 x 9.5 x 0.3 mm
Silicone on membrane:
Membrane holding up 10 grams:
Membrane holding up 60 grams:
Membrane holding up 110 grams:
Membrane holding up 160 grams:
Membrane holding up 180 grams:
Membrane broke while trying to remove the 180 grams.
Charles
Remarkable results and dramatic demo.
I’m too lazy to calculate the max pressure held by the membrane. Can you?