Abstract:
The present disclosure provides a method of fabricating a diamond membrane. The method comprises providing a substrate and a support structure. The substrate comprises a diamond material having a first surface and the substrate further comprises a sub-surface layer that is positioned below the first surface and has a crystallographic structure that is different to that of the diamond material. The sub-surface layer is positioned to divide the diamond material into first and second regions wherein the first region is positioned between the first surface and the sub-surface layer. The support structure also comprises a diamond material and is connected to, and covers a portion of, the first surface of the substrate. The method further comprises selectively removing the second region of the diamond material from the substrate by etching away at least a portion of the sub-surface layer of the substrate.
Abstract:
An apparatus for forming an array of deposits on a substrate is disclosed. The apparatus may include a stencil capable of releasable attached to the substrate and having an array of openings and at least one alignment mark. The apparatus may further include a high throughput deposition printer aligned with the stencil to form an array of deposits on the substrate. The array of deposits may be aligned with the array of openings through the at least one alignment mark and an optional alignment device. Methods of manufacturing the stencil and using it to generate multiplexed or combinatorial arrays are also disclosed.
Abstract:
A method for template fabrication of ultra-precise nanoscale shapes. Structures with a smooth shape (e.g., circular cross-section pillars) are formed on a substrate using electron beam lithography. The structures are subject to an atomic layer deposition of a dielectric interleaved with a deposition of a conductive film leading to nanoscale sharp shapes with features that exceed electron beam resolution capability of sub-10 nm resolution. A resist imprint of the nanoscale sharp shapes is performed using J-FIL. The nanoscale sharp shapes are etched into underlying functional films on the substrate forming a nansohaped template with nanoscale sharp shapes that include sharp corners and/or ultra-small gaps. In this manner, sharp shapes can be retained at the nanoscale level. Furthermore, in this manner, imprint based shape control for novel shapes beyond elementary nanoscale structures, such as dots and lines, can occur at the nanoscale level.
Abstract:
A variety of homogeneous or layered hybrid nanostructures are fabricated by electric field-directed assembly of nanoelements. The nanoelements and the fabricated nanostructures can be conducting, semi-conducting, or insulating, or any combination thereof. Factors for enhancing the assembly process are identified, including optimization of the electric field and combined dielectrophoretic and electrophoretic forces to drive assembly. The fabrication methods are rapid and scalable. The resulting nano structures have electrical and optical properties that render them highly useful in nanoscale electronics, optics, and biosensors.
Abstract:
A method for producing three-dimensional microstructures in which a source material is applied on a substrate, with a property changing by exposure with electromagnetic radiation. A three-dimensional source structure is written via spatially-resolving exposure in the source material, the source material is removed except for the source structure, and the source structure is molded with a target material, from which the microstructure to be produced is made. Here, a shell structure is provided surrounding the microstructure to be produced, with the source structure being created as the shell structure or the shell structure is produced using the source structure, and subsequently the target material is inserted into the shell structure.
Abstract:
The present invention relates to a process for producing a 3-dimensional structure assembled from nanoparticles by using a mask having a pattern of perforations, which comprises the steps of: in a grounded reactor, placing a mask having a pattern of perforations corresponding to a determined pattern at a certain distance above a substrate to be patterned, and then applying voltage to the substrate to form an electrodynamic focusing lens; and introducing charged nanoparticles into the reactor, the charged particles being guided to the substrate through the pattern of perforations so as to be selectively attached to the substrate with 3-dimensional shape. According to the process of the present invention, a 3-dimensional structure of various shapes can be produced without producing noise pattern, with high accuracy and high efficiency.
Abstract:
An apparatus for forming an array of deposits on a substrate is disclosed. The apparatus may include a stencil capable of releasable attached to the substrate and having an array of openings and at least one alignment mark. The apparatus may further include a high throughput deposition printer aligned with the stencil to form an array of deposits on the substrate. The array of deposits may be aligned with the array of openings through the at least one alignment mark and an optional alignment device. Methods of manufacturing the stencil and using it to generate multiplexed or combinatorial arrays are also disclosed.
Abstract:
A method for patterning a material onto a substrate including the steps of: providing a micro-mold having a plurality of non-communicating independent channels and having a plurality of reservoirs for receiving a micro-molding fluid each of which reservoirs communicates with a channel, the micro-mold including an elastomeric master having a surface with a plurality of recesses therein and a substrate; introducing a micro-molding fluid into the micro-mold reservoirs filling said communicating channels; and solidifying the fluid in the micro-mold and removing the elastomeric master thereby generating a pattern of material on the substrate. The micro-mold is formed by contacting the surface of the elastomeric master with the substrate such that the recesses in the surface form the plurality of reservoirs and channels.