Abstract:
An adhesive for a pellicle, the adhesive including a phenol compound, the phenol compound having at least two hydroxyl groups, a polymer having a hydroxyl group or an amine group, and water.
Abstract:
An adhesive composition, a method for preparing the same, a reticle assembly including the same, and a method for fabricating the reticle assembly including the same are provided. The adhesive composition includes a polyphenol compound including tannic acid, a polymer including polyvinyl alcohol, and a solvent including water and alcohol.
Abstract:
The present inventive concept provides a photomask including a substrate, patterns disposed on the substrate, and an anti-contamination layer disposed on the patterns. The anti-contamination layer includes at least one graphene layer. Methods of fabricating a semiconductor device including the same are also provided.
Abstract:
An adhesive composition, a method for preparing the same, a reticle assembly including the same, and a method for fabricating the reticle assembly including the same are provided. The adhesive composition includes a polyphenol compound including tannic acid, a polymer including polyvinyl alcohol, and a solvent including water and alcohol.
Abstract:
An apparatus for generating extreme ultraviolet (EUV) light includes a raw material supply unit supplying a plasma source for generating EUV light. An EUV light source unit uses a laser to generate plasma from the plasma source. A filter is configured to extract EUV light from the light. A first protective layer is disposed on a front surface of the filter. A frame having a first region exposing at least a portion of the filter or the first protective layer is disposed on the first protective layer. A width of the first region is smaller than a width of the first protective layer and smaller than or equal to a width of the filter.
Abstract:
Provided is a pellicle for exposure to extreme ultraviolet light (EUVL) according to an example embodiment, and the pellicle includes a pellicle membrane; and a frame attached to the pellicle membrane, wherein the pellicle membrane includes a carbon-based main layer that has a first surface and a second surface, which are two surfaces opposite to each other; and a boron-based enhancement layer covering at least one surface selected from the first surface and the second surface. The pellicle according to an example embodiment may be used for an extended period of time in an extreme ultraviolet light exposure environment.
Abstract:
A pellicle transfer apparatus includes; a base including supporting a target plate, a pellicle and a flexible plate sequentially stacked on the base, and a roller unit laterally movable in a first direction across the base and including a lower roller extending in a second direction intersecting the first direction, and an upper roller above the lower roller and extending in the second direction, wherein the lower roller compresses the flexible plate while the roller unit laterally moves in the first direction across the base to bond the pellicle to the target plate, as the pellicle is separated from the flexible plate, and the flexible plate moves upward to wrap around the lower roller, and the upper roller contacts the flexible plate as it wraps around the lower roller.
Abstract:
A pellicle for a photomask comprises a pellicle membrane. The pellicle membrane incudes a base layer having a first surface and a second surface facing the first surface, and a first recovery layer covering the first surface of the base layer. A content of SP2 covalent bonds between carbon atoms contained in the first recovery layer is less than or equal to a content of SP2 covalent bonds between carbon atoms contained in the base layer.
Abstract:
Methods of manufacturing a pellicle assembly may include forming a sublimable support layer on a first surface of a pellicle membrane, attaching a pellicle frame to a second surface of the pellicle membrane while the sublimable support layer is on the first surface of the pellicle membrane, and sublimating the sublimable support layer while the pellicle frame is attached to the pellicle membrane. In order to manufacture a photomask assembly, a photomask is fixed to the pellicle frame such that the photomask faces the pellicle membrane with the pellicle frame therebetween.