Patent ID: RE43471

Claim:
A method of manufacturing a semiconductor device, said method comprises the steps of: forming a first conductive film on an insulating surface; forming a first photo resist pattern on the first conductive film; dry-etching the first conductive film to form a first pattern; depositing a first insulating film on the first pattern; depositing a first semiconductor film on the first insulating film; depositing a one conductivity type second semiconductor film on the first semiconductor film; depositing a second conductive film on the one conductivity type second semiconductor film; forming a second photo resist pattern on the second conductive film; dry-etching the first semiconductor film, the one conductivity type second semiconductor film, and the second conductive film to form a second pattern; depositing a third conductive film on the second pattern; forming a third photo resist pattern on the third conductive film; and etching the third conductive film and the second pattern to form a third pattern, each of the steps of forming the first, the second and the third photo resist patterns comprising the steps of . : coating a photo resist; performing a pre-bake after coating the photo resist ; performing an exposure after performing the pre-bake ; performing a development after the exposure ; and performing a post-bake after the development , wherein a pre-bake temperature is within ±10° C. , relative to a post-bake temperature.