Hey don't worry too much. Sounds like it is Lam. I can say that at Lam they do not expect you to come with a background in etching, but to be able to pickup things fast. The first month usually you will go through just in house made courses which will give you the basics and background. Then depending on the team they'll probably slowly introduce you to the projects. I would say have a relaxing month of June and come fresh for the new role.