I applied in-person. The process took 2 months. I interviewed at 3M (Detroit, MI) in Nov 2014
Interview
Spoke with recruiter at a career booth. Got an interview next day with one employee. Got requisition numbers for a few positions, had to apply online for them. Then I had a phone interview with two employees. Supervisor then called me and told me I had the job.
One to one interview with hiring manager, asked basic questions such as experience and goals. Overall, very pleasant, more interested in your interest and why you chose to go for the internship
I applied through college or university. I interviewed at 3M
Interview
Straight to the point. Interviewer was friendly. Interviewer screen through all applications resume which I felt was fair. Interviewer also hired based on past experience instead of grades which I'm greatful for.
Panel interview. The interview process was casual. Mostly generic questions asked like what made u choose this job, what do u plan to learn during your time here, have u applied to any companies aside from ours, reason for applying to those companies