The goal of this course is to review the fundamentals of semiconductor materials, p-n junction diodes, and MOS capacitors. There are many semiconductor technologies based on different material systems, but the most important is complementary metal-oxide-semiconductor, or CMOS for short. This course will focus on semiconductor materials and devices relevant to CMOS manufacturing, but the concepts can be applied much more broadly. Many of you may have already completed a semester-long class focused on devices, perhaps even more than one. However, if you took that class a while ago or have only the minimum exposure to semiconductor devices, we have developed this short course to review the fundamentals you will need to be successful in this specialization.