Abstract:
A reticle inspection apparatus includes a reticle, an image generator to generate images of a surface of the reticle, and an image processor to compare first and second images generated by the image generator. The first image is generated when a pellicle is not on the reticle and the second image is generated when the pellicle is on the reticle.
Abstract:
A photomask includes a transparent substrate, a mask pattern formed on the substrate, and a protective layer pattern covering side walls of the mask pattern, wherein a top of the protective layer pattern is exposed.
Abstract:
A chemical supply structure includes a bar-shaped body having a plurality of chemical reservoirs in which a plurality of chemicals is individually stored such that the body partially crosses an underlying substrate, a bar-shaped nozzle protruded from a bottom surface of the body and injecting injection chemicals onto the substrate, a plurality of the chemicals being mixed into the injection chemicals, and a hydrophobic unit arranged on the bottom surface of the body and on a side surface of the nozzle such that a mixed solution mixed with the injection chemicals is prevented from adhering to the bottom surface and the side surface by controlling a contact angle of the mixed solution with respect to the bottom surface and the side surface.
Abstract:
A method of operating a host controlling a storage medium includes receiving initial authentication information; setting a portion of a storage space of the storage medium as a protection area; transmitting the received initial authentication information and protection area information with respect to the protection area to the storage medium; and discarding the initial authentication information in the host.
Abstract:
A method of manufacturing a pellicle assembly, the method including attaching a carbon-containing thin film onto a transfer membrane in a wet atmosphere; attaching the carbon-containing thin film to a pellicle frame in a dry atmosphere while the carbon-containing thin film is attached onto the transfer membrane; and separating the transfer membrane from the carbon-containing thin film while the carbon-containing thin film is attached to the pellicle frame.
Abstract:
A photomask includes a transparent substrate, a mask pattern formed on the substrate, and a protective layer pattern covering side walls of the mask pattern, wherein a top of the protective layer pattern is exposed.
Abstract:
A method of manufacturing a pellicle includes forming a membrane on a first surface of a substrate from a chemical reaction in which the substrate serves as a catalyst, forming a protective pattern on a second surface of the substrate, immersing the substrate in an etchant solution, such that a portion of the substrate exposed through the protective pattern is removed to form a frame, and replacing the etchant solution with a solvent.
Abstract:
A method for measuring a critical dimension of a mask pattern, including generating a mask pattern using an optically proximity-corrected (OPC) mask design including at least one block; measuring a first critical dimension of a target-region of interest (target-ROI) including neighboring blocks having a same critical dimension (CD), in the mask pattern; determining a group region of interest including the target-ROI and at least one neighboring block adjacent to the target-ROI; measuring second CDs of the neighboring blocks of the group region of interest; and correcting a measuring value of the first CD using a measuring value of the second CDs.