Hey there. I was recently accepted. Electrical Engineering (Photonics). Here's how it went:
1. Email January 14th from a faculty on the admissions board asking for a Skype interview
2. Accepted via email on February 5th
3. Email on February 6th with details / nomination for university fellowship
Here's info on visit days:
We invite you to meet with our faculty and students, as well as to explore our unique city on the San Francisco Bay during our visit days for prospective graduate students (Sunday, March 16, 9:30 am – Monday, March 17, 9 pm). Since we will be starting on Sunday morning, we invite you to arrive the evening of Saturday, March 15. More information about the visit days will be emailed soon.
I hope that helps!