摘要:
A nano-imprint lithography process includes forming a multiplicity of hydroxyl groups on a surface of a substantially inorganic nano-imprint lithography template, heating the template, and reacting a pre-selected percentage of the hydroxyl groups on the surface of the template with a mono-functional, non-fluorinated compound to form a monolayer coating on the surface of the nano-imprint lithography template. The coated template may be contacted with a polymerizable composition disposed on a nano-imprint lithography substrate, and the polymerizable composition solidified to form a patterned layer. The coated template is separated from the patterned layer.
摘要:
Release agents with increased affinity toward nano-imprint lithography template surfaces interact strongly with the template during separation of the template from the solidified resist in a nano-imprint lithography process. The strong interaction between the surfactant and the template surface reduces the amount of surfactant pulled off the template surface during separation of a patterned layer from the template in an imprint lithography cycle. Maintaining more surfactant associated with the surface of the template after the separation of the patterned layer from the template may reduce the amount of surfactant needed in a liquid resist to achieve suitable release of the solidified resist from the template during an imprint lithography process. Strong association of the release agent with the surface of the template facilitates the formation of ultra-thin residual layers and dense fine features in nano-imprint lithography.
摘要:
A nano-imprint lithography stack includes a nano-imprint lithography substrate, a non-silicon-containing layer solidified from a first polymerizable, non-silicon-containing composition, and a silicon-containing layer solidified from a polymerizable silicon-containing composition adhered to a surface of the non-silicon-containing layer. The non-silicon-containing layer is adhered directly or through one or more intervening layers to the nano-imprint lithography substrate. The silicon-containing layer includes a silsesquioxane with a general formula (R′(4-2z)SiOz)x(HOSiO1.5)y, wherein R′ is a hydrocarbon group or two or more different hydrocarbon groups other than methyl, 1
摘要翻译:纳米压印光刻堆叠包括纳米压印光刻基板,从第一可聚合的非含硅组合物固化的非含硅层和从可聚合的含硅组合物固化的含硅层,所述可聚合的含硅组合物粘附到 非含硅层的表面。 非含硅层直接或通过一个或多个中间层粘附到纳米压印光刻基片上。 含硅层包括具有通式(R'(4-2z)SiO z)x(HOSiO 1.5)y的倍半硅氧烷,其中R'是烃基或两个或更多个不同于甲基的不同烃基, z <2,x和y是整数。 压印光刻叠层可以进一步包括第二非含硅层,其从粘附到含硅层的表面的第二可聚合非含硅组合物固化,使得含硅层被夹在非晶硅层之间, 含硅层。
摘要:
A solid layer is formed by applying a multiplicity of discrete portions of a fluid composition onto a surface of an imprint lithography substrate, and allowing the discrete portions of the composition to spontaneously spread on the surface of the substrate to form a substantially continuous layer. The composition includes a solvent and a solid or a solvent and a polymerizable material. The composition can be a solution or a dispersion. At least some of the solvent is evaporated from the composition, and a solid layer is formed (e.g., polymerized or dried) on the substrate. The solid layer is substantially free of interstitial voids.
摘要:
Release agents with increased affinity toward nano-imprint lithography template surfaces interact strongly with the template during separation of the template from the solidified resist in a nano-imprint lithography process. The strong interaction between the surfactant and the template surface reduces the amount of surfactant pulled off the template surface during separation of a patterned layer from the template in an imprint lithography cycle. Maintaining more surfactant associated with the surface of the template after the separation of the patterned layer from the template may reduce the amount of surfactant needed in a liquid resist to achieve suitable release of the solidified resist from the template during an imprint lithography process. Strong association of the release agent with the surface of the template facilitates the formation of ultra-thin residual layers and dense fine features in nano-imprint lithography.
摘要:
An imprint lithography template includes a porous material defining a multiplicity of pores with an average pore size of at least about 0.4 nm. The porous material includes silicon and oxygen, and a ratio of Young's modulus (E) to relative density of the porous material with respect to fused silica (pporous/pfused silica) is at least about 10:1. A refractive index of the porous material is between about 1.4 and 1.5. The porous material may form an intermediate layer or a cap layer of an imprint lithography template. The template may include a pore seal layer between a porous layer and a cap layer, or a pore seal layer on top of a cap layer.
摘要:
A nano-imprint lithography template includes a rigid support layer, a cap layer, and a flexible cushion layer positioned between the support layer and the cap layer. Treating an imprint lithography template includes heating the template to desorb gases from the template. Heating the template includes radiating the template at a selected wavelength with, for example, infrared radiation. The selected wavelength may correspond to a wavelength at which the template material is strongly absorbing.
摘要:
Porous nano-imprint lithography templates may include pores, channels, or porous layers arranged to allow evacuation of gas trapped between a nano-imprint lithography template and substrate. The pores or channels may be formed by etch or other processes. Gaskets may be formed on an nano-imprint lithography template to restrict flow of polymerizable material during nano-imprint lithography processes.
摘要:
An imprint lithography template or imprinting stack includes a porous material defining a multiplicity of pores with an average pore size of at least about 0.4 nm. A porosity of the porous material is at least about 10%. The porous template, the porous imprinting stack, or both may be used in an imprint lithography process to facilitate diffusion of gas trapped between the template and the imprinting stack into the template, the imprinting stack or both, such that polymerizable material between the imprinting stack and the template rapidly forms a substantially continuous layer between the imprinting stack and the template.
摘要:
An imprint lithography template includes a porous material defining a multiplicity of pores with an average pore size of at least about 0.4 nm. The porous material includes silicon and oxygen, and a ratio of Young's modulus (E) to relative density of the porous material with respect to fused silica (ρporous/ρfused silica) is at least about 10:1. A refractive index of the porous material is between about 1.4 and 1.5. The porous material may form an intermediate layer or a cap layer of an imprint lithography template. The template may include a pore seal layer between a porous layer and a cap layer, or a pore seal layer on top of a cap layer.