Patent classifications
G03F7/70358
PROJECTION EXPOSURE DEVICE
A projection exposure device projects exposure light onto a substrate via a microlens array. The projection exposure device includes a scanning exposure unit that moves the microlens array along a scanning direction from one end toward another end of the substrate, and a microlens array shift unit that moves the microlens array in a shift direction intersecting with the scanning direction during movement of the microlens array caused by the scanning exposure unit.
WAFER-BASED LIGHT SOURCE PARAMETER CONTROL
A photolithography method includes instructing an optical source to produce a pulsed light beam; scanning the pulsed light beam across a wafer of a lithography exposure apparatus to expose the wafer with the pulsed light beam; during scanning of the pulsed light beam across the wafer, receiving a characteristic of the pulsed light beam at the wafer; receiving a determined value of a physical property of a wafer for a particular pulsed light beam characteristic; and based on the pulsed light beam characteristic that is received during scanning and the received determined value of the physical property, modifying a performance parameter of the pulsed light beam during scanning across the wafer.
EXPOSURE APPARATUS AND METHOD OF MANUFACTURING ARTICLE
The present invention provides an exposure apparatus for performing scanning exposure on each of a plurality of shot regions in a substrate, comprising: a stage configured to hold the substrate; a driver configured to drive the stage; and a controller configured to control the scanning exposure on each of the plurality of shot regions while controlling the driver in accordance with a driving profile, wherein the driving profile includes a first section in which the stage is driven at a constant acceleration in a first direction, a second section in which the stage is driven at a constant acceleration in a second direction opposite to the first direction, and a connection section connecting the first section and the second section, and a period in which the scanning exposure is performed includes at least a part of the connection section.
Reduced Spatial/Temporal Overlaps to Increase Temporal Overlaps to Increase Precision in Focused Ion Beam FIB Instruments for Milling And Imaging and Focused Ion Beams for Lithography
A beam control method is provided that can be implemented with any hardware system for imaging and/or cutting such as SEM/FIB/HIM or charged particle lithography which alleviates the deposited energy overlap between pixels to increase resolution and precision while reducing damage. The method includes scanning a workpiece with e-beam lithography, proton lithography, ion beam lithography, optical lithography, ion beam imaging or FIB in a reduced or sub-sampled pattern, to reduce beam overlap, which can include the step of scanning the beam ensuring that there is the largest difference in time and space between consecutive beam locations.
METHOD OF MANUFACTURING SEMICONDUCTOR DEVICES USING A PHOTOMASK
In a method of manufacturing a semiconductor device, in an EUV scanner, an EUV lithography operation using an EUV mask is performed on a photo resist layer formed over a semiconductor substrate. After the EUV lithography operation, the EUV mask is unloaded from a mask stage of the EUV scanner. The EUV mask is placed under a reduced pressure below an atmospheric pressure. The EUV mask is heated under the reduced pressure at a first temperature in a range from 100° C. to 350 C°. After the heating, the EUV mask is stored in a mask stocker.
EXPOSURE SYSTEM AND METHOD FOR MANUFACTURING ELECTRONIC DEVICES
An exposure system according to an aspect of the present disclosure includes a laser apparatus that outputs pulsed laser light, an illuminating optical system that guides the pulsed laser light to a reticle, a reticle stage, and a processor that controls the output of the pulsed laser light from the laser apparatus and the movement of the reticle performed by the reticle stage. The reticle has a first region where a first pattern is disposed and a second region where a second pattern is disposed, and the first and second regions are each a region continuous in a scan width direction perpendicular to a scan direction of the pulsed laser light, with the first and second regions arranged side by side in the scan direction. The processor controls the laser apparatus to output the pulsed laser light according to each of the first and second regions by changing the values of control parameters of the pulsed laser light in accordance with each of the first and second regions.
ILLUMINATION OPTICAL SYSTEM, EXPOSURE APPARATUS AND METHOD OF MANUFACTURING ARTICLE
The present invention provides an illumination optical system for illuminating an object, comprising: a first light-transmissive member and a second light-transmissive member, and a control unit configured to control drive of the first light-transmissive member and the second light-transmissive member, therein, while the control unit drives the first light-transmissive member such that an incident angle of light to the first light-transmissive member increases, the control unit drives the second light-transmissive member such that the incident angle of light to the second light-transmissive member decreases, thereby changing the intensity of the light exiting from the illumination optical system.
SEMICONDUCTOR PROCESSING TOOL AND METHODS OF OPERATION
Some implementations described herein provide an exposure tool and associated methods of operation in which a scanner control system generates a scanner route for an exposure recipe such that the distance traveled by a substrate stage of the exposure tool along the scanner route is reduced and/or optimized for non-exposure fields on a semiconductor substrate. In this way, the scanner control system increases the productivity of the exposure tool, reduces processing times of the exposure tool, and increases yield in a semiconductor fabrication facility in which the exposure tool is included.
METHODS AND SYSTEMS FOR MASKLESS LITHOGRAPHY
Method of exposing a substrate by a patterned radiation beam, comprising: —providing a radiation beam; —imparting the radiation beam by an array of individually controllable elements; —generating, from the radiation beam, a patterned radiation beam, by tilting the individually controllable elements between different positions about a tilting axis; —projecting the patterned radiation beam towards a substrate; —scanning a substrate across the patterned radiation beam in a scanning direction so as to expose the substrate to the patterned radiation beam, whereby the tilting axis of the individually controllable elements is substantially perpendicular to the scanning direction.
Pellicle Frame, Pellicle, Exposure Original Plate with Pellicle, Exposure Method, and Semiconductor or Liquid-Crystal-Display Manufacturing Method
The present invention provides a pellicle frame, a pellicle, an exposure original plate with the pellicle, an exposure method, and a semiconductor or liquid-crystal-display manufacturing method, the pellicle frame constituting a pellicle for photolithography.