Letian Wang

5 Questions 6 Answers 0 Followers

Questions related from Letian Wang

What are the most low-efficient and painful moments in your research life?

Hello, I am a researcher in UC Berkeley. As an experimentalist, from day to day, I just suffered from lots of things in my research, for example, I sometimes found there not sufficient components...

11 November 2017 6,617 6 View

How to measure the temperature distribution in z direction of a Si wafer

There are quite a few methods that can be used to measure the surface temperature of a Si wafer. But how can I measure the temperature distribution in z direction. This can be of interest in the...

08 August 2017 3,318 3 View

How do I calculate the absorption power of a EM wave?

Hi All, I am asking how to calculate the absorption power from a laser beam into the semiconductor material. I am using the FDTD solution from Lumerical. According to the user guide, I am...

10 October 2015 9,815 4 View

How can I see SEM cross section image in dielectric by cracking it?

updated 06/08/2015: Hi Dear All, I had several line patterns on the quartz wafer using negative lithography. This patterns will be used for future etching and deposition. So I would love to...

05 May 2015 9,579 12 View

Phase field or level set, which is better for modeling crystallization with capillary effect?

Hi, Dear researchers! I am considering modeling the Si crystallization using matlab code. The capillary effect will also be considered. I found there is general difference in phase field and level...

02 February 2015 8,162 4 View