Patent ID: 9252027
Filing Date: 2016-02-02
CPC Classification: H01L

Claim Text:
1. A method of forming a pattern, the method comprising: forming a first layer on a fabrication target film; making a mold and the first layer push each other to form a protrusion on the fabrication target film, and forming a first region and a second region, the first region being surrounded by the first layer and the protrusion, the second region being surrounded by the first layer and contacting the first region via the protrusion; forming a block copolymer layer comprising first and second blocks in the first region and the second region; phase-separating the block copolymer layer, forming a second layer and a third layer surrounded by the second layer in the first region, and forming a fourth layer and a fifth layer surrounded by the fourth layer in the second region; and removing the third and fifth layers.