摘要:
In accordance with the invention, an article comprising a nanoscale surface pattern, such as a grating, is provided with a nanoscale patterns of reduced edge and/or sidewall roughness. Smooth featured articles, can be fabricated by nanoimprint lithography using a mold having sloped profile molding features. Another approach uses a mold especially fabricated to provide smooth sidewalls of reduced roughness, and a third approach adds a post-imprint smoothing step. These approaches can be utilized individually or in various combinations to make the novel articles.
摘要:
In accordance with the invention, a lateral dimension of a microscale device on a substrate is reduced or adjusted by the steps of providing the device with a soft or softened exposed surface; placing a guiding plate adjacent the soft or softened exposed surface; and pressing the guiding plate onto the exposed surface. Under pressure, the soft material flows laterally between the guiding plate and the substrate. Such pressure induced flow can reduce the lateral dimension of line spacing or the size of holes and increase the size of mesas. The same process also can repair defects such as line edge roughness and sloped sidewalls. This process will be referred to herein as pressed self-perfection by liquefaction or P-SPEL.
摘要:
Nanochannel arrays that enable high-throughput macromolecular analysis are disclosed. Also disclosed are methods of preparing nanochannel arrays and nanofluidic chips. Methods of analyzing macromolecules, such as entire strands of genomic DNA, are also disclosed, as well as systems for carrying out these methods.
摘要:
Nanochannel arrays that enable high-throughput macromolecular analysis are disclosed. Also disclosed are methods of preparing nanochannel arrays and nanofluidic chips. Methods of analyzing macromolecules, such as entire strands of genomic DNA, are also disclosed, as well as systems for carrying out these methods.
摘要:
A processing method for use in the fabrication of fabrication of nanoscale electronic, optical, magnetic, biological, and fluidic devices and structures, for filling nanoscale holes and trenches, for planarizing a wafer surface, or for achieving both filling and planarizing of a wafer surface simultaneously. The method has the initial step of depositing a layer of a meltable material on a wafer surface. The material is then pressed using a transparent mold while shining a light pulse through the transparent mold to melt the deposited layer of meltable material. A flow of the molten layer material fills the holes and trenches, and conforms to surface features on the transparent mold. The transparent mold is subsequently removed.
摘要:
The invention is directed to new nanoimprint resist and thin-film compositions for use in nanoimprinting lithography. The compositions permit economical high-throughput mass production, using nanoimprint processes, of patterns having sub-200 nm, and even sub-50 nm features.
摘要:
In accordance with the invention, an article comprising a nanoscale surface pattern, such as a grating, is provided with a nanoscale patterns of reduced edge and/or sidewall roughness. Smooth featured articles, can be fabricated by nanoimprint lithography using a mold having sloped profile molding features. Another approach uses a mold especially fabricated to provide smooth sidewalls of reduced roughness, and a third approach adds a post-imprint smoothing step. These approaches can be utilized individually or in various combinations to make the novel articles.
摘要:
The present invention relates to release surfaces, particularly release surfaces with fine features to be replicated, and to lithography which may be used to produce integrated circuits and microdevices. More specifically, the present invention relates to a process of using an improved mold or microreplication surface that creates patterns with ultra fine features in a thin film carried on a surface of a substrate.
摘要:
In accordance with the invention, features can be directly imprinted into the surface of a solid substrate. Specifically, a substrate is directly imprinted with a desired pattern by the steps of providing a mold having a molding surface to imprint the pattern, disposing the molding surface adjacent or against the substrate surface to be imprinted, and irradiating the substrate surface with radiation to soften or liquefy the surface. The molding surface is pressed into the softened or liquefied surface to directly imprint the substrate. The substrate can be any one of a wide variety of solid materials such as semiconductors, metals, or polymers. In a preferred embodiment the substrate is silicon, the laser is a UV laser, and the mold is transparent to the UV radiation to permit irradiation of the silicon workpiece through the transparent mold. Using this method, applicants have directly imprinted into silicon large area patterns with sub-10 nanometer resolution in sub-250 nanosecond processing time. The method can also be used with a flat molding surface to planarize the substrate.
摘要:
An improved method of bonding involves using direct fluid pressure to press together the layers to be bonded. Advantageously one or more of the layers are sufficiently flexible to provide wide area contact under the fluid pressure. Fluid pressing can be accomplished by sealing an assembly of layers to be bonded and disposing the assembly in a pressurized chamber. It can also be accomplished by subjecting the assembly to jets of pressurized fluid. The result of this fluid pressing is reduction of voids and enhanced uniformity over an enlarged area.