| 摘要 |
PURPOSE:To incorporate an image sensor function, analog-digital conversion function, logical circuit function and memory circuit function organically onto the same substrate and allow the operation as one system by providing a layer wherein an analog-digital converting circuit is incorporated under a layer having the uppermost image sensor function. CONSTITUTION:In a device constitute in a lamination structure constituted of an insulation layer 2 which electrically isolates and insulates a plurality of active layers 1, 3, 5, 7 and upper-lower active layers e.g. 1 and 3, the function of the uppermost first layer 1 is decided as one of image sensors for picture image, characters, etc. In an active layer 3 under an active layer 1 having image sensor function, the circuit which convets analog signal into digital signal via an insulation layer 2 is incorporated. Thereby, the analog signal in a large amount transmitted from the first active layer 1 can be sufficiently processed. Next, the image signal digitized in this active layer 3 is transferred to e.g. a logical circuit active layer 5 and a memory circuit active layer 7 formed via insulation layers 4 and 6 and logically processed and memory-processed. |
