SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME

摘要

PURPOSE: A semiconductor device and a manufacturing method thereof are provided to reduce the number of photolithography processes when a transistor is manufactured. CONSTITUTION: Circuits(308,309) include a transistor with an oxide semiconductor layer on a first substrate(301). A second substrate(303) is fixed to the first substrate by a sealant(304). The first substrate is a semiconductor substrate or a glass substrate. The second substrate is a glass substrate. A closed space is surrounded by the sealant, the first substrate, and the second substrate. The pressure of the closed space is reduced or the closed space is filled with dry air.