[IA] Week 4, Day 1

syalalalalala...


STUPID ME!!!


I used the 4 point probe again for the resistance testing.
Dr. Li asked me to check the phase change temperature of the GST-225 using the probe, because last time I did check the HfO2/GST and it's OL...

Then, I did the resistance testing lol.

But but but... always OL up to 150 degree C...


and I wonder why.


Then, 1 hour later, I've just realized that the black wire of the multimeter is not connected to the probe!!! Last time it's the red one, now it's the black one...


Bah.


THen, I used the sample GST-3, the one I used for UV Spectrophotometry.
But dunno... the result and the curve seems weird... I cannot find any phase change temperature lol.

Then, I took out another sample from the drybox. GST-4, and the result is also... disgusting, I should say.


Sigh -.-


And Dr. Li also asked me to find out the GST-225 melting point temperature.
Tmelting = 600 - 620 degree C.
Tcrystallize = 400 - 450 degree C.


How?
Ask Mr. Gugel lo


3 hours and 45 minutes.


I'm hungry -.-