PREPOLYMER COMPOSITION INTENDED TO FORM A CONTRAST LAYER AND METHOD FOR STRUCTURING AN INTERFACE MATERIAL

    公开(公告)号:US20230063847A1

    公开(公告)日:2023-03-02

    申请号:US17785324

    申请日:2020-12-29

    申请人: ARKEMA FRANCE

    发明人: Xavier Chevalier

    摘要: The invention relates to a crosslinkable prepolymer composition for use as a contrast layer. It also relates to a method for structuring an interface material. This method is characterized in particular by the following steps:
    depositing, on a block copolymer film, a prepolymer composition layer comprising a plurality of functional monomers and at least one crosslinkable functional group within its polymer chain and, on the other hand, two chemically different crosslinking agents, each agent being capable of initiating the crosslinking of said prepolymer in response to a stimulation specific thereto,
    subjecting the stack to a first stimulation localized on first areas, so as to cause a crosslinking reaction of the molecular chains of said prepolymer, and subjecting the stack to a second stimulation, so as to cause crosslinking of the molecular chains of said prepolymer by the action of said second crosslinking agent in secondary areas.

    METHOD FOR NANOSTRUCTURING A SUBSTRATE

    公开(公告)号:US20230012890A1

    公开(公告)日:2023-01-19

    申请号:US17787406

    申请日:2020-12-29

    IPC分类号: G03F7/00 B82Y40/00

    摘要: The invention relates to a method for nanostructuring a substrate (10) for the preparation of a nanostructured substrate having nanostructures of different dimensions, the method including removing the crosslinked polymer layer (TC) and one of the blocks of the nanostructured block copolymer so as to form patterns of a nanolithography mask; said method being characterized in that the removal of one of the blocks is a removal of only a portion of the nanodomains (21, 22) of one of the blocks of the nanostructured block copolymer, in particular of only the perpendicular nanodomains (Z1) of said block, such that the parallel nanodomains (21, 22) of at least two blocks of the nanostructured block copolymer form patterns of the nanolithography mask; and so as to generate in the nanolithography mask patterns (M1, M2, M3) of different dimensions and nanostructures in the nanostructured substrate of different dimensions after etching.