Patent ID: 8747682
Filing Date: 2014-06-10
Classification: B81C,H01L

Abstract:
1. A pattern formation method, comprising: forming a plurality of regions on a foundation, the plurality of the regions corresponding to different pattern sizes, each of the regions having a recess; forming a solution supply region on the foundation to communicate with the recess, the solution supply region having a recessed configuration larger than the recess; dropping a solution including each of a plurality of block copolymers dissolved in a solvent into the solution supply region from a nozzle by an inkjet method and flowing the solution into the recess; performing a phase separation of the each of the block copolymers of each of the regions; and selectively removing a designated phase of each of the phase-separated block copolymers to form a pattern of the each of the block copolymers, the pattern having a different pattern size for the each of the regions, wherein the recesses are arranged in a first direction, each one of the recesses is connected with only one solution supply region, a first one of the solution supply regions is connected with a first end of a first one of the recesses, and a second one of the solution supply regions is connected with a second end of a second one of the recesses neighboring the first recess in the first direction, the second end opposite to the first end in a second direction perpendicular to the first direction.