Hasnain Ahmad

4 Questions 9 Answers 0 Followers

Questions related from Hasnain Ahmad

What type of soldering material is resistant to 2 to 4 wt% sulpfamic acid and 10-12 wt% Indium sulfamate mixture?

Hi everyone, I need some expert input about the soldering compatibility in sulfamic acid and indium sulfamate mixture. We have designed a sample holder for using in electroplating solution that...

12 May 2021 8,963 0 View

Is MgO surface hydrophilic or hydrophoic?

I am trying to make a Magnetic tunneling junction (MTJ) where I need to spin coat on MgO surface to create pattern by photolithography. Will it be detrimental to tunneling oxide layer by creating...

27 October 2015 9,596 3 View

How can I achieve a better PMMA double layer electron resist liftoff?

Hi All, I have been doing e beam lithography for couple of months to make ellipsoidal nano magnets (250nm by 150nm . 350nm by 275nm etc.). Usually I use e beam evaporation for a thin (5-8nm) Ti...

18 September 2014 8,454 14 View

How can I get correct composition of binary alloy (FeGa also known as galfenol) by sputtering?

I have been depositing FeGa (magnetic material with magnetostriction close to 400 ppm (bulk value)) and trying to make thin films on top of Silicon wafer. The composition of my target is Fe 81%...

31 January 2014 2,974 9 View