G03F7/70558

METHOD AND DEVICE FOR EXPOSURE OF PHOTOSENSITIVE LAYER
20200089121 · 2020-03-19 · ·

A method and device for exposing a light-sensitive layer, said method comprising: generating at least one light ray by use of at least one light source, illuminating pixels of an exposure pattern by use of at least one micromirror device having a plurality of micromirrors with respective mirror intensity profiles, and overlaying the mirror intensity profiles of adjacent micromirrors to provide a pattern intensity profile of the exposure pattern by summing the mirror intensity profiles of each illuminated pixel of the exposure pattern.

METHOD TO ENHANCE THE RESOLUTION OF MASKLESS LITHOGRAPHY WHILE MAINTAINING A HIGH IMAGE CONTRAST
20200089128 · 2020-03-19 ·

The embodiments described herein relate to a software application platform, which enhances image patterns resolution on a substrate. The application platform method includes running an algorithm to provide different target polygons for forming a pattern on a target. A minimum feature size which may be formed by a DMD is determined. For each target polygons smaller than the minimum feature size determining to line bias or shot bias the one or more target polygons to achieve an acceptable exposure contrast at the target polygon boundary. The one or more target polygons smaller than the minimum feature size are biased to form a digitized pattern on the substrate. Electromagnetic radiation is delivered to reflect off of a first mirror of the DMD when the centroid for the first mirror is within the one or more target polygons.

METHODS AND APPARATUS TO CONTROL GRAYSCALE PHOTOLITHOGRAPHY

A die includes a resist layer located over a semiconductor substrate, and a pattern developed in the resist layer. The pattern includes a plurality of locations of developed photoresist, each location of developed photoresist separated from a neighboring location of developed photoresist by a portion of undeveloped photoresist, and the developed photoresist at each location having a corresponding different thickness.

Half tone scheme for maskless lithography

Embodiments described herein provide a system, a software application, and a method of a lithography process, to write full tone portions and grey tone portions in a single pass. One embodiment of the system includes a controller configured to provide mask pattern data to a lithography system. The controller is configured to divide a plurality of spatial light modulator pixels temporally by grey tone shots and full tone shots of a multiplicity of shots, and the controller is configured to vary a second intensity of a light beam generated by a light source and vary a first intensity of the light beam generated by the light source of each image projection system at the full tone shots.

Exposure condition evaluation device

The purpose of the present invention is to provide an exposure condition evaluation device that appropriately evaluates a wafer exposure condition or calculates an appropriate exposure condition, on the basis of information obtained from an FEM wafer, without relying on the formation state of the FEM wafer. In order to achieve the foregoing, the present invention proposes an exposure condition evaluation device which evaluates an exposure condition of a reduction projection exposure device, on the basis of the information of patterns exposed on a sample by the reduction projection exposure device, and which uses a second feature amount of a plurality of patterns formed by making exposure conditions uniform to correct a first feature amount of a plurality of patterns formed by a plurality of different exposure condition settings.

Exposure apparatus, exposure apparatus adjustment method and storage medium

An exposure apparatus includes a stage on which a substrate is placed, a plurality of light irradiation units configured to emit light independently of each other to different positions in a right and left direction on a surface of the substrate, so as to form a strip-like irradiation area extending from one end of the surface of the substrate to the other end of the substrate, a stage moving mechanism configured to move the stage in a back and forth direction relative to the irradiation area, such that the whole surface of the substrate is exposed, and a light receiving unit configured move in the irradiation area between one end and the other end of the irradiation area in order to detect an illuminance distribution of the irradiation area in a longitudinal direction of the irradiation area.

METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE AND APPARATUS FOR MANUFACTURING THE SEMICONDUCTOR DEVICE

A method of manufacturing a semiconductor device includes dividing a number of dies along an x axis in a die matrix in each exposure field in an exposure field matrix delineated on the semiconductor substrate, wherein the x axis is parallel to one edge of a smallest rectangle enclosing the exposure field matrix. A number of dies is divided along a y axis in the die matrix, wherein the y axis is perpendicular to the x axis. Sequences SNx0, SNx1, SNx, SNxr, SNy0, SNy1, SNy, and SNyr are formed. p*(Nbx+1)2 stepping operations are performed in a third direction and first sequence exposure/stepping/exposure operations and second sequence exposure/stepping/exposure operations are performed alternately between any two adjacent stepping operations as well as before a first stepping operation and after a last stepping operation. A distance of each stepping operation in order follows the sequence SNx.

SUBSTRATE PROCESSING APPARATUS, SUBSTRATE PROCESSING METHOD, AND STORAGE MEDIUM

There is provided a substrate processing apparatus including: a light radiator configured to radiate a light for processing into an irradiation area which is smaller than a processing target area of a surface of a substrate; a driver configured to move the irradiation area in two directions that cross each other in a plane along the surface of the substrate; and a controller configured to control the driver to move an irradiation position in two directions according to a movement pattern which has been set to radiate the light to an entire area of the processing target area.

EXPOSURE APPARATUS AND ARTICLE MANUFACTURING METHOD
20200019066 · 2020-01-16 ·

An exposure apparatus comprises a projection optical system for projecting a pattern of a mask, a substrate stage for holding a substrate, and a measurement device installed on the substrate stage, including a plate on which a substrate-side mark is formed, and a sensor for detecting light transmitted through a mask-side mark, the projection optical system, and the substrate-side mark, and configured to measure an amount of the light detected by the sensor. The substrate-side mark includes a central mark arranged in a center of a sensitive region of the sensor, and a peripheral mark arranged in a periphery of the central mark. The central mark is used in measurement of the light amount, including driving the substrate stage in a direction parallel to an optical axis of the projection optical system.

OPTICAL SYSTEM AND METHOD
20200012199 · 2020-01-09 ·

An optical system comprising: an illumination system configured, to form a periodic illumination mode comprising radiation in a pupil plane of the optical system having a spatial intensity profile which is periodic in at least one direction, a measurement system configured to measure a dose of radiation which is received in an field plane of the optical system as a function of position in the field plane, and a controller configured to: select one or more spatial frequencies in the field plane at which variation in the received dose of radiation as a function of position is caused by speckle, and determine a measure of the variation of the received dose of radiation as a function of position at the selected one or more spatial frequencies, the measure of the variation in the received dose being indicative of speckle in the field plane.