METHOD FOR FORMING A PATTERN
    3.
    发明申请

    公开(公告)号:US20230130385A1

    公开(公告)日:2023-04-27

    申请号:US18048618

    申请日:2022-10-21

    摘要: In one exemplary embodiment, a method for forming a pattern includes (a) forming, on a substrate, a first pattern having an opening and containing a first material, (b) forming a filling portion in the opening, the filling portion containing a second material different from the first material, and (c) removing the first pattern so that the filling portion remains as a second pattern inverted with respect to the first pattern. At least one of the first material or the second material contains tin.

    RESIST UNDERLYING FILM-FORMING COMPOSITION FOR NANOIMPRINTING

    公开(公告)号:US20230060585A1

    公开(公告)日:2023-03-02

    申请号:US17783453

    申请日:2020-12-10

    摘要: A composition for forming resist underlayer film for nanoimprinting includes novolac resin that has a repeating unit structure represented by formula (1). In formula (1), group A represents organic group having an aromatic ring, a condensed aromatic ring, or a condensed aromatic heterocycle, group B represents organic group having an aromatic ring or a condensed aromatic ring, group E represents a single bond or a branched or straight-chain C1-10 alkylene group that may be substituted and may include an ether bond and/or a carbonyl group, group D represents organic group that has 1 to 15 carbon atoms and is represented by formula (2) (in which R1, R2, and R3 each independently represent a fluorine atom, or a straight-chain, branched-chain, or cyclic alkyl group, and any two of R1, R2, and R3 may be bonded to one another to form a ring), and n represents a number from 1 to 5.

    POST APPLICATION/EXPOSURE TREATMENTS TO IMPROVE DRY DEVELOPMENT PERFORMANCE OF METAL-CONTAINING EUV RESIST

    公开(公告)号:US20230031955A1

    公开(公告)日:2023-02-02

    申请号:US17758567

    申请日:2021-01-29

    IPC分类号: G03F7/16 H01L21/027 G03F7/38

    摘要: Various embodiments described herein relate to methods, apparatus, and systems for treating metal-containing photoresist to modify material properties of the photoresist. For instance, the techniques herein may involve providing a substrate in a process chamber, where the substrate includes a photoresist layer over a substrate layer, and where the photoresist includes metal, and treating the photoresist to modify material properties of the photoresist such that etch selectivity in a subsequent post-exposure dry development process is increased. In various embodiments, the treatment may involve exposing the substrate to elevated temperatures and/or to a remote plasma. One or more process conditions such as temperature, pressure, ambient gas chemistry, gas flow/ratio, and moisture may be controlled during treatment to tune the material properties as desired.