G03F7/2053

CRITICAL DIMENSION CONTROL BY USE OF A PHOTO AGENT

A method for critical dimension control in which a substrate is received having an underlying layer and a patterned layer formed on the underlying layer, the patterned layer including radiation-sensitive material and a pattern of varying elevation with a first critical dimension. The method further includes applying an overcoat layer over the patterned layer, the overcoat layer containing a photo agent selected from a photosensitizer generator compound, a photosensitizer compound, a photoacid generator compound, a photoactive agent, an acid-containing compound, or a combination of two or more thereof. The overcoat layer is then exposed to electromagnetic radiation, wherein the dose of electromagnetic radiation applied to different regions of the substrate is varied, and then the overcoat layer and patterned layer are heated. The method further includes developing the overcoat layer and the patterned layer to alter the first critical dimension of the patterned layer to a second critical dimension.

Parallelized 3D Lithography Using Multi-Beam, Multi-Color Light-Induced Polymerization
20220055290 · 2022-02-24 ·

The present invention relates to a method for additive manufacturing of a 3D-structured form and to a device for additive manufacturing of a 3D-structured form.

Rinse solution for pattern formation and pattern forming process

In a resist pattern forming process, a rinse solution comprising (A) a heat/acid-decomposable polymer and (B) an organic solvent is effective. The pattern forming process using the rinse solution is successful in forming fine feature size patterns while minimizing the occurrence of pattern collapse.

Active light sensitive or radiation sensitive resin composition, pattern forming method, method for manufacturing electronic device, and electronic device

The actinic ray-sensitive or radiation-sensitive resin composition of the present invention contains a resin (P) including a repeating unit (i) having a group which decomposes by the action of an acid represented by the following General Formula (1), a pattern forming method using the composition, a method for manufacturing an electronic device, and an electronic device. ##STR00001##

EXPOSURE METHOD, EXPOSURE EQUIPMENT AND 3-D STRUCTURE
20170293226 · 2017-10-12 ·

An exposure method is provided. The exposure method includes coating a photo-curable material on a substrate, and exposing a portion of the photo-curable material by providing a first light source through an optical fiber to form a first photo-cured material. The optical fiber includes a light output end and a cone portion that tapers toward the light output end. The photo-curable material not exposed by the first light source is removed while leaving the first photo-cured material. Exposure equipment for performing the exposure method and a 3-dimensional structure formed thereby are also described.

SUBSTRATE DEFORMING DEVICE FOR PROXIMITY EXPOSURE, AND SUBSTRATE DEFORMING METHOD FOR PROXIMITY EXPOSURE USING SAME

Provided is a substrate deforming device for proximity exposure, the device comprising: a mask holder for holding an exposure mask; a first plate which is spaced apart from the exposure mask in a certain direction, and holds a to-be-exposed substrate; a position adjustment part for adjusting the position of the exposure mask; a gap adjustment part for adjusting a gap between the exposure mask and the to-be-exposed substrate; a first sensor for measuring the position of at least one among the exposure mask and the to-be-exposed substrate; a second sensor for measuring the gap between the exposure mask and the to-be-exposed substrate; and a control unit which performs a first control according to the measurement result from the first sensor, and after the first control, performs a second control according to the measurement result from the second sensor. The first control reduces the relative distance between the exposure mask and the to-be-exposed substrate by means of the position adjustment part. The second control deforms the to-be-exposed substrate by means of the gap adjustment part in response to deflection of the exposure mask.

Patterning methods and products

The present invention provides a process for producing a surface-modified layer system comprising a substrate (2) and a self-assembled monolayer (SAM) (1) anchored to its surface. The SAM (1) is comprised by aryl or rigid alicyclic moiety species. The process comprises providing a polymorphic SAM (1) anchored to the substrate (2), and thermally treating (4) the SAM to change from a first to a second structural form thereof. The invention also provides a thermolithographic form of process in which the thermal treatment (4) is used to transfer a pattern (3) to the SAM (1), which is then developed.

Mask, method of manufacturing the same, and method of manufacturing a display panel using the same

A mask includes a transparent substrate and a light blocking pattern. The light blocking pattern includes a light blocking part and a diffraction pattern. The light blocking part is disposed on the transparent substrate and is configured to block light. The diffraction pattern includes a plurality of protrusion parts and is configured to diffract the light. The plurality of protrusion parts protrudes from a side of the blocking part and is separated from each other.

Pattern formation method, etching method, electronic device manufacturing method, and electronic device

A pattern formation method includes step (i) of forming a first negative type pattern on a substrate by performing step (i-1) of forming a first film on the substrate using an actinic ray-sensitive or radiation-sensitive resin composition, step (i-2) of exposing the first film and step (i-3) of developing the exposed first film in this order; step (iii) of forming a second film at least on the first negative type pattern using an actinic ray-sensitive or radiation-sensitive resin composition (2); step (v) of exposing the second film; and step (vi) of developing the exposed second film and forming a second negative type pattern at least on the first negative type pattern.

Nanoscale Etching of Light Absorbing Materials using Light and an Electron Donor Solvent
20210405533 · 2021-12-30 ·

A method for etching a light absorbing material permits directly writing a pattern of etching of silicon nitride and other light absorbing materials, without the need of a lithographic mask, and allows the creation of etched features of less than one micron in size. The method can be used for etching deposited silicon nitride films, freestanding silicon nitride membranes, and other light absorbing materials, with control over the thickness achieved by optical feedback. The etching is promoted by solvents including electron donor species, such as chloride ions. The method provides the ability to etch silicon nitride and other light absorbing materials, with fine spatial and etch rate control, in mild conditions, including in a biocompatible environment. The method can be used to create nanopores and nanopore arrays.