Patent ID: 9041202
Filing Date: 2015-05-26
Classification: H01L

Abstract:
1. A semiconductor device comprising: a first conductive film; a second conductive film over the first conductive film; a first insulating film over the first conductive film and the second conductive film; a semiconductor film provided over the first insulating film; a third conductive film over the semiconductor film; a fourth conductive film over the third conductive film; a second insulating film covering the semiconductor film, the third conductive film and the fourth conductive film; a pixel electrode provided over the second insulating film and electrically connected to the semiconductor film; a transistor using a first portion of the first conductive film as a gate electrode, a first portion of the third conductive film as a source electrode and a first portion of the first insulating film as a gate dielectric; and a storage capacitor using a second portion of the third conductive film as an upper electrode, a second portion of the first conductive film as a lower electrode, and a second portion of the first insulating film as a dielectric, wherein an entirety of the second conductive film overlaps with the first conductive film while the first portion of the first conductive film and the second portion of the first conductive film do not overlap with the second conductive film, wherein an entirety of the fourth conductive film overlaps with the third conductive film while the first portion of the third conductive film and the second portion of the third conductive film do not overlap with the fourth conductive film, wherein the semiconductor film does not overlap with the second conductive film, and wherein the storage capacitor is transparent such that a light passes through the storage capacitor from one of the first insulating film and the second insulating film to the other of the first insulating film and the second insulating film.