HIGH RESOLUTION LATENT IMAGE PROCESSING, CONTRAST ENHANCEMENT AND THERMAL DEVELOPMENT

    公开(公告)号:US20230100995A1

    公开(公告)日:2023-03-30

    申请号:US17950685

    申请日:2022-09-22

    Abstract: Patterning of organometallic radiation sensitive compositions is facilitated using a gaseous form of a contrast enhancing agent, which can include a carboxylic acid, an amide, a sulfonic acid, an alcohol, a diol, a silyl halide, a germanium halide, a tin halide, an amine, a thiol, or a mixture thereof, in which the mixture can be of the same class or different class of compounds. Contact with the contrast enhancing reactive compound is provided after irradiation of the organometallic composition to form a latent image. The contrast enhancing agent can be delivered before or after physical pattern development, and processing with the contrast enhancing agent can involve removal in a thermal process of some or substantially all of the non-irradiated organometallic composition. The contrast enhancing agent can be used in a dry thermal development step. If the contrast enhancing agent is used after a distinct development step, use of the contrast enhancing agent can involve improvement of the pattern quality. Apparatuses for performing processing with contrast enhancing agents are described.

    DEUTERATED ORGANOTIN COMPOUNDS, METHODS OF SYNTHESIS AND RADIATION PATTERNING

    公开(公告)号:US20220411446A1

    公开(公告)日:2022-12-29

    申请号:US17682586

    申请日:2022-02-28

    Abstract: Organotin compounds are presented that are represented by the formula RSnL3, wherein R is a deuterated hydrocarbyl group and L is a hydrolysable ligand. Two different synthesis techniques are described for synthesizing these compositions. A first method involves reacting a primary halide hydrocarbyl compound (R—X, where X is a halide atom) with an organometallic composition comprising SnL3 moieties associated with metal cations M, where M is an alkali metal, alkaline earth metal, and/or pseudo-alkaline earth metal (Zn, Cd, or Hg), and L is either an amide ligand resulting in an alkali metal tin triamide compound or an acetylide ligand resulting in an alkali metal tin triacetylide, to form correspondingly a monohydrocarbyl tin triamide (RSn(NR′2)3) or a monohydrocarbyl tin triacetylide (RSn(C≡CRs)3). An alternative approach involves reacting a Grignard reagent RMgX with SnL4 in a solution comprising an organic solvent to form a monoorgano tin tralkylamide, a monoorgano tin trialkoxide, monoorgano tin tri acetylide or monoorgano tin tricarboxylate. The compositions are useful for radiation patterning, especially with EUV radiation.

    TIN DODECAMERS AND RADIATION PATTERNABLE COATINGS WITH STRONG EUV ABSORPTION

    公开(公告)号:US20220324886A1

    公开(公告)日:2022-10-13

    申请号:US17840844

    申请日:2022-06-15

    Abstract: Patterning compositions are described based on organo tin dodecamers with hydrocarbyl ligands, oxo ligands, hydroxo ligands and carboxylato ligands. Alternative dodecamer embodiments have organo tin ligands in place of hydrocarbyl ligands. The organo tin ligands can be incorporated into the dodecamers from a monomer with the structure (RCC)3SnQ, where R is a hydrocarbyl group and Q is a alkyl tin moiety with a carbon bonded to the Sn atom of the monomer and with a Sn bonded as a replacement of a quaternary carbon atom with bonds to 4 carbon atoms. Some or all of the carboxylato and hydroxyl ligands can be replaced with fluoride ions. Good EUV patterning results are obtained with the dodecamer based patterning compositions.

    APPARATUSES FOR REDUCING METAL RESIDUE IN EDGE BEAD REGION FROM METAL-CONTAINING RESISTS

    公开(公告)号:US20220028685A1

    公开(公告)日:2022-01-27

    申请号:US17498437

    申请日:2021-10-11

    Abstract: Apparatuses and methods are described for removing edge bead on a wafer associated with a resist coating comprising a metal containing resist compositions. The methods can comprise applying a first bead edge rinse solution along a wafer edge following spin coating of the wafer with the metal based resist composition, wherein the edge bead solution comprises an organic solvent and an additive comprising a carboxylic acid, an inorganic fluorinated acid, a tetraalkylammonium compound, or a mixture thereof. Alternatively or additionally, the methods can comprise applying a protective composition to the wafer prior to performing an edge bead rinse. The protective composition can be a sacrificial material or an anti-adhesion material and can be applied only to the wafer edge or across the entire wafer in the case of the protective composition. Corresponding apparatuses for processing the wafers using these methods are presented.

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