Patent ID: 8188577

Claim:
A production method of a semiconductor device including a semiconductor layer, a wiring layer and a flattening layer on a substrate, the flattening layer surrounding the semiconductor layer and extending around at least a portion of the wiring layer when the substrate is viewed in plane, the wiring layer being spatially separated from the semiconductor layer when the substrate is viewed in plane, the production method comprising the steps of: forming the semiconductor layer on the substrate; forming a photosensitive organic film on the semiconductor layer and on the wiring layer, the photosensitive organic film having a photosensitive wavelength range overlapping with an absorption wavelength range of the semiconductor layer, and forming the flattening layer by exposing the photosensitive organic film from a side of the substrate to light having a wavelength range corresponding to the photosensitive wavelength range of the photosensitive organic film, thereby developing the photosensitive organic film.