EUV photo masks and manufacturing method thereof

    公开(公告)号:US11619875B2

    公开(公告)日:2023-04-04

    申请号:US17090825

    申请日:2020-11-05

    Abstract: In a method of manufacturing a reflective mask, a photo resist layer is formed over a mask blank. The mask blank includes a substrate, a reflective multilayer on the substrate, a capping layer on the reflective multilayer, an absorber layer on the capping layer and a hard mask layer, and the absorber layer is made of Cr, CrO or CrON. The photo resist layer is patterned, the hard mask layer is patterned by using the patterned photo resist layer, the absorber layer is patterned by using the patterned hard mask layer, and an additional element is introduced into the patterned absorber layer to form a converted absorber layer.

    EUV masks to prevent carbon contamination

    公开(公告)号:US11561464B2

    公开(公告)日:2023-01-24

    申请号:US17532939

    申请日:2021-11-22

    Abstract: An extreme ultra-violet mask includes a substrate, a multi-layered mirror layer, a capping layer, a first tantalum-containing oxide layer, a tantalum-containing nitride layer, and a second tantalum-containing oxide layer. The multi-layered mirror layer is over the substrate. The capping layer is over the multi-layered mirror layer. The first tantalum-containing oxide layer is over the capping layer. The tantalum-containing nitride layer is over the first tantalum-containing oxide layer. The second tantalum-containing oxide layer is over the tantalum-containing nitride layer.

    EUV PHOTO MASKS AND MANUFACTURING METHOD THEREOF

    公开(公告)号:US20210373431A1

    公开(公告)日:2021-12-02

    申请号:US17109833

    申请日:2020-12-02

    Abstract: A reflective mask includes a substrate, a reflective multilayer disposed over the substrate, a capping layer disposed over the reflective multilayer, an intermediate layer disposed over the capping layer, an absorber layer disposed over the intermediate layer, and a cover layer disposed over the absorber layer. The intermediate layer includes a material having a lower hydrogen diffusivity than a material of the capping layer.

    Reticle and method of fabricating the same
    27.
    发明授权
    Reticle and method of fabricating the same 有权
    掩模版及其制造方法

    公开(公告)号:US09341940B2

    公开(公告)日:2016-05-17

    申请号:US14278678

    申请日:2014-05-15

    CPC classification number: G03F1/32 G03F1/28

    Abstract: A reticle and a method of fabricating the reticle are provided. In various embodiments, the reticle includes a substrate, a patterned first attenuating layer, a patterned second attenuating layer, and a patterned third attenuating layer. The patterned first attenuating layer is disposed on the substrate. The patterned second attenuating layer is disposed on the patterned first attenuating layer. The patterned third attenuating layer is disposed on the patterned second attenuating layer. A first part of the patterned first attenuating layer, a first part of patterned second attenuating layer, and the patterned third attenuating layer are stacked on the substrate as a binary intensity mask portion.

    Abstract translation: 提供了掩模版和制作掩模版的方法。 在各种实施例中,掩模版包括衬底,图案化的第一衰减层,图案化的第二衰减层和图案化的第三衰减层。 图案化的第一衰减层设置在基板上。 图案化的第二衰减层设置在图案化的第一衰减层上。 图案化的第三衰减层设置在图案化的第二衰减层上。 图案化第一衰减层的第一部分,图案化第二衰减层的第一部分和图案化的第三衰减层作为二值强度掩模部分堆叠在基板上。

    Extreme ultraviolet mask with alloy based absorbers

    公开(公告)号:US12181797B2

    公开(公告)日:2024-12-31

    申请号:US17483302

    申请日:2021-09-23

    Abstract: An extreme ultraviolet mask including a substrate, a reflective multilayer stack on the substrate and a multi-layer patterned absorber layer on the reflective multilayer stack is provided. Disclosed embodiments include an absorber layer that includes an alloy comprising ruthenium (Ru), chromium (Cr), platinum (Pt), gold (Au), iridium (Ir), titanium (Ti), niobium (Nb), rhodium (Rh), molybdenum (Mo), tungsten (W) or palladium (Pd), and at least one alloying element. The at least one alloying element includes ruthenium (Ru), chromium (Cr), tantalum (Ta), platinum (Pt), gold (Au), iridium (Ir), titanium (Ti), niobium (Nb), rhodium (Rh), molybdenum (Mo), hafnium (Hf), boron (B), nitrogen (N), silicon (Si), zirconium (Zr) or vanadium (V). Other embodiments include a multi-layer patterned absorber structure with layers that include an alloy and an alloying element, where at least two of the layers of the multi-layer structure have different compositions.

Patent Agency Ranking