Major: If I wanted to make a cellphone...

UncannyCrayon
Sun, 10 Apr 2011 19:38:47 +0000

Program and interface: computer.
The creation of the battery and electrical components and the plastics involved with the casing and potential water/heat/pressure resistant parts: materials.
Interaction of aforementioned components: electrical/mechanical

If that’s what you really want to do, you could pick any of the majors, but to get to something so specific you’d have to wait until grad school unless Verizon/Sprint etc. offer you a job after your bachelors.