摘要:
Bilayer systems include a bottom layer formed of polydimethylglutarimide, an acid labile dissolution inhibitor and a photoacid generator. The bilayer system can be exposed and developed in a single exposure and development process.
摘要:
Bilayer systems include a bottom layer formed of polydimethylglutarimide, an acid labile dissolution inhibitor and a photoacid generator. The bilayer system can be exposed and developed in a single exposure and development process.
摘要:
A method of forming a layered structure comprising a domain pattern of a self-assembled material utilizes a negative-tone patterned photoresist layer comprising non-crosslinked developed photoresist. The developed photoresist is not soluble in an organic casting solvent for a material capable of self-assembly. The developed photoresist is soluble in an aqueous alkaline developer and/or a second organic solvent. A solution comprising the material capable of self-assembly and the organic casting solvent is casted on the patterned photoresist layer. Upon removal of the organic casting solvent, the material self-assembles, thereby forming the layered structure.
摘要:
A method. A combination is provided of a block copolymer and additional material. The copolymer includes a first block of a first polymer covalently bonded to a second block of a second polymer. The additional material is miscible with the first polymer. The first polymer includes polystyrene and the second polymer includes poly(ethylene oxide). A first layer including polydimethylglutarimide is adhered onto a surface of a substrate including a dielectric coated silicon wafer. A film is formed of the combination directly onto a surface of the first layer. Nanostructures of the additional material self-assemble within the first polymer block. The film and the first layer are simultaneously etched. The nanostructures have an etch rate lower than an etch rate of the block copolymer and lower than an etch rate of the first layer. Portions of the film are removed. Features remain on the surface of the first layer.
摘要:
A method for producing surface features and an etch masking method. A combination is provided of a block copolymer and additional material. The block copolymer includes a first block of a first polymer covalently bonded to a second block of a second polymer. The additional material is miscible with the first polymer. A film is formed of the combination directly onto a surface of a first layer. Nanostructures of the additional material self-assemble within the first polymer block. The film of the combination and the first layer are etched. The nanostructures have an etch rate lower than an etch rate of the block copolymer and lower than an etch rate of the first layer. The film is removed and features remain on the surface of the first layer. Also included is an etch masking method where the nanostructures mask portions of the first layer from said etchant.
摘要:
A method for producing surface features and an etch masking method. A combination is provided of a block copolymer and additional material. The block copolymer includes a first block of a first polymer covalently bonded to a second block of a second polymer. The additional material is miscible with the first polymer. A film is formed of the combination directly onto a surface of a first layer. Nanostructures of the additional material self-assemble within the first polymer block. The film of the combination and the first layer are etched. The nanostructures have an etch rate lower than an etch rate of the block copolymer and lower than an etch rate of the first layer. The film is removed and features remain on the surface of the first layer. Also included is an etch masking method where the nanostructures mask portions of the first layer from said etchant.
摘要:
A method for producing surface features and an etch masking method. A combination is provided of a block copolymer and additional material. The block copolymer includes a first block of a first polymer covalently bonded to a second block of a second polymer. The additional material is miscible with the first polymer. A film is formed of the combination directly onto a surface of a first layer. Nanostructures of the additional material self-assemble within the first polymer block. The film of the combination and the first layer are etched. The nanostructures have an etch rate lower than an etch rate of the block copolymer and lower than an etch rate of the first layer. The film is removed and features remain on the surface of the first layer. Also included is an etch masking method where the nanostructures mask portions of the first layer from said etchant.
摘要:
A polymer blend is provided for use in a lithographic photoresist composition, particularly a chemical amplification photoresist. In a preferred embodiment, the polymer blend is substantially transparent to deep ultraviolet radiation, i.e., radiation of a wavelength less than 250 nm, including wavelengths of 157 nm, 193 nm and 248 nm, and has improved sensitivity and resolution. Processes for preparing and using the polymer blend are also provided, as are lithographic photoresist compositions that contain the polymer blend.
摘要:
Photoresist compositions include a blend of at least one fully protected calix[4]resorcinarene and at least one unprotected calix[4]resorcinarene, wherein the fully protected calix[4]resorcinarene has phenolic groups protected with acid labile protective groups; a photoacid generator; and a solvent, and wherein the blend and the photoacid generator are soluble in the solvent. Also disclosed are processes for generating a resist image on a substrate using the photoresist composition.
摘要:
Photoresist compositions include a blend of at least one fully protected calix[4]resorcinarene and at least one unprotected calix[4]resorcinarene, wherein the fully protected calix[4]resorcinarene has phenolic groups protected with acid labile protective groups; a photoacid generator; and a solvent, and wherein the blend and the photoacid generator are soluble in the solvent. Also disclosed are processes for generating a resist image on a substrate using the photoresist composition.