Patent ID: 8283238

Claim:
A manufacturing method of a semiconductor device, comprising the steps of: bonding a first bond substrate which is provided with a first projection and a second bond substrate which is provided with a second projection to a base substrate; dividing the first bond substrate and the second bond substrate so that a first semiconductor film which is part of the first projection and a second semiconductor film which is part of the second projection are provided over the base substrate; bonding a third bond substrate which is provided with a third projection to the base substrate so that a region of the third bond substrate other than the third projection overlaps with the first semiconductor film and the second semiconductor film after dividing the first bond substrate and the second bond substrate; and dividing the third bond substrate so that a third semiconductor film which is part of the third projection is provided over the base substrate, wherein the first projection is formed by partially removing an end portion of the first bond substrate, wherein the second projection is formed by partially removing an end portion of the second bond substrate, and wherein the third projection is formed by partially removing an end portion of the third bond substrate.