METHOD FOR MANUFACTURING ACTIVE MATRIX ARRAY DEVICE, AND ACTIVE MATRIX ARRAY DEVICE MANUFACTURED THEREBY

Active matrix array devices are constituted by devices that have a function such as those of a display/light emitting device, a sensor, a memory, or an actuator, and are arranged in a matrix array shape, and the expansion of usage in various fields and applications is expected. However, there is little similarity and compatibility in the forming process and materials between a device such as a display/light emitting device, a sensor, a memory, or an actuator, and a circuit portion that controls such a device in the matrix element, and therefore the device and the circuit portion are mutually restricting factors. This results in an increase in the manufacturing cost and limitation of the function. A conventional active matrix array device is manufactured by performing various process steps on the same substrate. Control circuit portions each including a transistor are formed in some of the process steps. In contrast, the problem described above is solved by forming the control circuit portions of an active mat