I applied online. I interviewed at Wolfspeed in May 2017
Interview
The process consists of a questionnaire, phone interview, Skype presentation of research or some relevant project, and finally an on-site interview. I was only considered up to the presentation stage, where I was asked questions about my undergraduate research that were beyond the undergraduate level of technical expertise. It was at this point that I was disqualified. The questions asked were directed at a specific answer, and if that answer was not given, the interviewer continued to ask the same question in different ways to "direct" the interviewee to the answer. If the correct answer is not given, the process ends up making the interviewee look completely incompetent, even though the questioning method is not optimal.
Interview questions [2]
Question 1
You are given 2 sand timers, one with 4 minutes of sand, and one with 7 minutes of sand, and you are asked to use these to measure exactly 9 continuous minutes of time to boil an egg. without estimating time remaining visually, how can you precisely time this cooking process?
Given 9 billiard balls, with one out of 9 exhibiting a significantly different weight from the rest, and using a balance to measure mass, what is the minimum number of measurements that must be taken to be certain of which ball is the heavy one?
I applied online. I interviewed at Wolfspeed (Durham, NC) in July 2021
Interview
Long but fair. Started with an HR interview where I was asked standard questions as well as a time where I had to solve a technical problem and the steps I took to do so, then a 2nd phone interview with a manager who was friendly and polite. I was asked a combination of questions from what I am looking for in a job culturally,, behavioral questions, and some very straightforward technical questions pertaining to LEDs and semiconductors. I am preparing for my 3rd interview now and was told to expect 4 total before an offer. All the interviews are still over the phone, none in person. For the 3rd interview I have been asked to prepare a 30 minute presentation on research or a project I have completed and to expect 30 minutes of follow up questions from 3-4 R&D managers.
Interview questions [1]
Question 1
Pertaining to an internship I'd done, I was asked to explain with some technical details a project I had listed on my resume.
Included an hour long presentation and a series of interviews with various departments and personnel within departments. Included three layers: phone interview, phone interview with presentation, and all day interview.
I applied online. I interviewed at Wolfspeed in June 2018
Interview
It was a phone interview which took at around 30 mins. First of all, starting with brief introduction of urself then the manager were mainly asking about my previous experience regards to its means of characterization, such as TEM, and SEM. Like how do you scan the sample? basic requirements for a TEM/SEM sample? or things like that.
Interview questions [1]
Question 1
How do you prepare a TEM sample? requirements/process