MEANS TO DECOUPLE THE DIFFUSION AND SOLUBILITY SWITCH MECHANISMS OF PHOTORESISTS

    公开(公告)号:US20180102282A1

    公开(公告)日:2018-04-12

    申请号:US15568791

    申请日:2015-05-28

    Abstract: Embodiments of the invention include photoresist materials and methods of patterning photoresist materials. In an embodiment a photoresist material comprises a plurality of molecular glasses (MGs). In an embodiment, a glass transition temperature Tg of the photoresist material is less than an activation temperature needed to deblock blocking groups from the MGs. Embodiments include a method of patterning a photoresist material that comprises exposing the photoresist material with ultraviolet radiation. The method may also comprise, performing a first post exposure bake at a first temperature, that is less than the activation temperature needed to deblock blocking groups from the MGs, and performing a second post exposure bake at a second temperature that is approximately equal to or greater than the activation temperature needed to deblock blocking groups from the MGs.

    LIGAND-CAPPED MAIN GROUP NANOPARTICLES AS HIGH ABSORPTION EXTREME ULTRAVIOLET LITHOGRAPHY RESISTS

    公开(公告)号:US20220229364A1

    公开(公告)日:2022-07-21

    申请号:US17712953

    申请日:2022-04-04

    Abstract: A photosensitive composition including metal nanoparticles capped with an organic ligand, wherein the metal particles includes a metal that absorbs light in the extreme ultraviolet spectrum. A method including synthesizing metal particles including a diameter of 5 nanometers or less, wherein the metal particles includes a metal that absorbs light in the extreme ultraviolet spectrum; and capping the metal particles with an organic ligand. A method including depositing a photosensitive composition on a semiconductor substrate, wherein the photosensitive composition includes metal nanoparticles capped with an organic ligand and the nanoparticles include a metal that absorbs light in the extreme ultraviolet spectrum; exposing the photosensitive composition to light in an ultraviolet spectrum through a mask including a pattern; and transferring the mask pattern to the photosensitive composition.

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