Innovative UV nanoimprint lithography using a condensable alternative chlorofluorocarbon atmosphere ?
Elimination of bubble defects was attained by using PFP atmosphere. 22-nm resist lines satisfy the values of LER and LWR required for 22-nm node NAND flash memories. 20,000 repeated imprints were achieved by using a surfactant-added UV resin and a PFP atmosphere.
uv nanoimprinting lithography uv resin condensable gas pentafluoropropane demolding force