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Questions related from Yanwei He
People have been talking about that sputtering provides better adhesion and a higher density of metal contact than ebeam evaporation. But what the microstructure at the interface looks like? Is...
04 October 2020 3,974 3 View
I tried to use acetone to remove the carbon tape residual on my cobalt foil, but the cobalt foil then gets oxidized and turned in light yellow. What is the chemical reaction behind this? Your...
15 March 2020 3,182 2 View
The problem is there is no drop-off at all. The wire won't rupture near the surface, instead, it seems like the wire immersed in solution get etched away evenly. The etching condition I use is...
10 September 2019 9,876 3 View
Take Ni as example, after annealed in vacuum at about 900C, grains with different orientation are formed, some are 111, some are 100, and some are 311, etc. So what play the role in determining...
16 September 2018 5,981 3 View
Please help, it says that ECR plasma has bombardment effect, but where does the kinetic energy of ions come from? Does the substrate has to be negatively biased? I
17 June 2017 9,722 3 View
