WEEK+OF+FEBURARY+04TH

First time I got a bad tip so pictures of that time are not qualified.. After chaning the tip, I also had a problem with approaching so I could not get any images today..

Actually, before chaging the tip, I should have moved some area and checked it out if the tip is the real problem Next time, I will make sure to check that out.

There was a problem on STM yesterday. There was current and everything was fine. But when I hit the approach button, it just did not work. What I tried was cleaning the cylinder and the inside of the STM machine with ethonal. But It did not work again. So I changed the tip but it failed too. So, I tried to scan graphyte instead of dibenzo pentacene. And it worked. It just failed whenever I tried to scan dibenzo pentacene.
 * 02-05-10**