EUV METALLIC RESIST PERFORMANCE ENHANCEMENT VIA ADDITIVES

    公开(公告)号:US20240377735A1

    公开(公告)日:2024-11-14

    申请号:US18783765

    申请日:2024-07-25

    Abstract: A photoresist layer is formed over a wafer. The photoresist layer includes a metallic photoresist material and one or more additives. An extreme ultraviolet (EUV) lithography process is performed using the photoresist layer. The one or more additives include: a solvent having a boiling point greater than about 150 degrees Celsius, a photo acid generator, a photo base generator, a quencher, a photo de-composed base, a thermal acid generator, or a photo sensitivity cross-linker.

    Humidity control or aqueous treatment for EUV metallic resist

    公开(公告)号:US12106961B2

    公开(公告)日:2024-10-01

    申请号:US17581671

    申请日:2022-01-21

    CPC classification number: H01L21/0274 H01L21/3081

    Abstract: A method for forming a semiconductor device is provided. The method includes applying a photoresist composition over a substrate, thereby forming a photoresist layer over the substrate; performing a first baking process to the photoresist layer; exposing the photoresist layer to an extreme ultraviolet (EUV) radiation, thereby forming a pattern therein; performing a second baking process to the photoresist layer; and developing the photoresist layer having the pattern therein using a developer, thereby forming a patterned photoresist layer. The first baking process and the second baking process are conducted under an ambient atmosphere having a humidity level ranging from 55% to 100%.

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