Patent ID: 8389413
Filing Date: 2013-03-05
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device comprising: forming a first layer on a member to be etched having first and second areas, the first area including a processing area and a non-processed area; forming a sidewall core in the first area by patterning the first layer; forming a second layer that at least covers side surfaces of the sidewall core; forming a third layer over the second layer; forming an embedded hard mask that at least covers side surfaces of the second layer by etching back the third layer; exposing the member to be etched in an area that neither the sidewall core nor the embedded hard mask is formed within the first area and the member to be etched in an area that a second pattern is to be formed within the second area by etching the second layer; and forming a first pattern in the processing area of the first area and the second pattern in the second area by selectively removing the member to be etched having been exposed, wherein the exposing the member to be etched is performed by using a mask layer that covers the non-processed area of the first area and an area other than the area that the second pattern is to be formed within the second area and exposes the processing area of the first area and the area that the second pattern is to be formed within the second area.