SEMICONDUCTOR DEVICE

摘要

PROBLEM TO BE SOLVED: To reduce the number of manufacturing processes of a semiconductor device; and improve yield of the semiconductor device; and reduce manufacturing cost of the semiconductor device.SOLUTION: A semiconductor device comprises on a substrate: a first transistor which has a single crystal semiconductor layer in a channel formation region; a second transistor which is isolated from the first transistor via an insulation layer and has an oxide semiconductor layer in a channel formation region; and a diode which has the single crystal semiconductor layer and the oxide semiconductor layer. And provided is a manufacturing method of the semiconductor device.