<p>For what it is worth, Berkeley has officially supported double majors in Materials Science Engineering with Chemical Engineering, Electrical Engineering and Computer Science, Mechanical Engineering, and Nuclear Engineering. Presumably, that would appeal to those who want to focus on the intersection of Materials Science Engineering with one of the other branches of engineering, or who want a second type of engineering as a backup job and career direction if job and career in Material Science Engineering does not pan out (as it is a relatively small field by itself).</p>