Jinwook Kim

8 Questions 5 Answers 0 Followers

Questions related from Jinwook Kim

Where would? can? positive charge(vacancy) be when grounded?

Hello I plasma(H2N2) treated Al2O3 plate (edge is connected to ground) and wondered if oxygen vacancy migration on the plate can occurs as electrons escape through edge. Or whatever positive...

16 February 2021 8,507 1 View

Are types of vacancies matter to diffusion kinetics?

I wonder if types of vacancies influence on diffusion kinetics. Like are vacancies such as Vba and Vo supposed to have different diffusion velocity or something? Or it just depends on...

20 December 2018 4,882 0 View

Is it considered as a defect if energy level is formed below/above 0.5 ev?

I was doing researches on BTO CL and found 2 peaks at 1.65 and 1.79 eV I thought they are energy levels introduced by dopants (I was thinking they were formed by Ca and Y) but my friend says...

14 December 2018 6,417 5 View

Are vacancies supposed to form clusters?

here are monochromatic cathodoluminescence images and rg composite image of BaTiO3 my question is are vacancies supposed to form a cluster? thermodynamically? cuz I think vacancies are randomly...

12 December 2018 9,673 0 View

Is it considered as a defect if energy level is formed below/above 0.5 ev?

I was doing researches on BTO CL and found 2 peaks at 1.65 and 1.79 eV I thought they are energy levels introduced by dopants (I was thinking they were formed by Ca and Y) but my friend says...

12 December 2018 2,902 6 View

Is doping in BaTiO3 only related to prevent oxygen vacancy migration?

I am wondering the reason for doping in BaTiO3 dielectric I know it helps with Vo migration to cathode in MLCC I wonder if there are any other reasons for doping. can anyone answer? thank you

12 December 2018 4,433 2 View

How can I thermally degrade multilayer ceramic capacitor?

Hi i'm trying to thermally degrade MLCC. I've tried heating it upto 200 C and putting bias like 23 V since its rated voltage is 10V and maximum temperature is 125C But it does not look like...

01 January 2018 6,632 2 View

Do you think we can measure particles with Residual Gas Analyzer(RGA)?

Hello, I was etching PR with H2/N2 Plasma. all of sudden, when I was pumping the gases out, MKS RGA spectrum shows a lot of 50 amu< peaks. So I was wondering if I can think of peaks over 50 amu...

01 January 1970 8,877 3 View