Sometimes called a mask or a photomask. Glass plate with chrome on one side in which a pattern is etched. The pattern is transferred to the wafer by shining light through the reticle.
A reticle is in this context a semiconductor photomask which only contains a part of the semiconductor wafer. The word comes from the early practice in microlithography to put a picture element in the reticle plane in a microscope eye piece and use the microscope as a microlithographic exposure device. A semiconductor reticle typically contains the pattern of a few semiconductor devices. The reticle is used in step- and- repeat exposure systems called wafer steppers.
In semiconductor parlance, a glass or quartz substrate with a 1OX image of a single IC. The 1OX reticle is produced by a pattern generator. The 1OX pattern may be optically reduced and stepped onto a master plate, or used directly on a stepping aligner system (commonly referred to as a stepper).
(sc) a reproduction of the pattern to be imaged on the wafer (or mask) by a step-and-repeat process. The actual size of the pattern on the reticle is usually several times the final size of the pattern on the wafer.
A system of fine lines, dots, cross hairs, or wires in the focal plane of an optical device that is used for sighting/aiming purposes and is particularly useful on a riflescope.
A uniform pattern of die on the same wafer.
a network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrument
a circuit pattern to be projected onto a wafer using UV light
a grid or system of lines in an eyepiece that helped in centering of focusing instruments, such as a sextant, on a particular object
A system of lines and/or concentric circles at the focal plane of a telescope, used for positioning or guiding the telescope, or polar-aligning an equatorial mount. Is usually incorporated into an eyepiece and may be illuminated in order to render the lines visible against a dark background sky.
A wire or cross hair in the focus of an eyepiece.
A piece of glass with a chrome pattern for several die, used in the photolithography process.
In scopes, the element which is optically referred to the target, consisting of straight or tapered cross-hairs, dots, or other marks used to determine the Point Of Aim, size of, or range to the target.
An optical element with a pattern located in the image plane to assist in calibration, measurement or alignment of a system or instrument. Examples are cross lines or grids.
A flat, transparent plate, used in a stepper, that contains the photographic image of wafer patterns to be reproduced on a wafer.
The reticle is a photomask marked with the actual circuit pattern, which is projected onto the wafer by a stepper or other projection optics. S/N ratio The ratio between the amplitude of the signal (S) to be received and the amplitude of the unwanted noise (N) at a given point in a receiving system.
A network of fine lines, wires, or the like placed in the focus of the eyepiece of an optical instrument. The crosshairs of a scope.
A very tiny grid pattern inserted in an eyepiece lens. It is used to make actual measurements of the size of objects seen through the microscope.
The aiming indicator at the focus of a telescopic sight. May consist of straight or tapered lines (crosshairs), dots, posts, or some combination thereof. Some scopes have auxiliary marks for range estimation.
A planar element located at the image plane of an optical system designed to measure the object imaged. The element is typically made of glass, and can have a wide variety of lines, circles, or patterns either etched or chrome deposited on it. Edmund Optics carries a wide variety of reticles for Magnifiers and Microscopes.