Dual scanning stage
First Claim
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1. A stage system, comprising:
- a guide beam for providing translational movement of a first stage and a second stage in a Y axis,the first stage for receiving a first substrate, the first stage slidably mounted to a first side of the guide beam, the first stage associated with a first motor for providing independent translational movement for the first stage in an X axis,the second stage for receiving a second substrate, the second stage slidably mounted to an opposing second side of the guide beam, the second stage associated with a second motor for providing independent translational movement for the second stage in the X axis,where the first stage and the second stage can only move together in the Y axis, as the guide beam moves in the Y axis, and move independently of and past one another in the X axis along opposing sides of the guide beam,a robot for loading and unloading substrates onto and off of the first stage and the second stage, anda controller for directing the robot to load a second substrate onto the second stage while simultaneously directing the first stage and the guide beam to scan a first substrate on the first stage in the X and Y axes.
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Abstract
A system having a beam for providing movement of a first stage and a second stage in a Y axis. The first stage receives a first substrate. A first motor provides movement for the first stage in an X axis. The second stage receives a second substrate. A second motor provides movement for the second stage in the X axis. The first stage and the second stage move together in the Y axis and independently in the X axis. A robot loads substrates onto the first stage and the second stage. A controller directs the robot to load a second substrate onto the second stage while simultaneously directing the first stage and the guide beam to scan a first substrate.
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Citations
7 Claims
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1. A stage system, comprising:
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a guide beam for providing translational movement of a first stage and a second stage in a Y axis, the first stage for receiving a first substrate, the first stage slidably mounted to a first side of the guide beam, the first stage associated with a first motor for providing independent translational movement for the first stage in an X axis, the second stage for receiving a second substrate, the second stage slidably mounted to an opposing second side of the guide beam, the second stage associated with a second motor for providing independent translational movement for the second stage in the X axis, where the first stage and the second stage can only move together in the Y axis, as the guide beam moves in the Y axis, and move independently of and past one another in the X axis along opposing sides of the guide beam, a robot for loading and unloading substrates onto and off of the first stage and the second stage, and a controller for directing the robot to load a second substrate onto the second stage while simultaneously directing the first stage and the guide beam to scan a first substrate on the first stage in the X and Y axes. - View Dependent Claims (2, 3, 4)
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5. A method of staging a first substrate and a second substrate, the method comprising the steps of:
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loading the first substrate onto a first stage, scanning the first stage in an X axis and a Y axis, loading the second substrate onto a second stage while continuing to scan the first stage, scanning the second stage in the X axis and the Y axis, where movement in the X axis is independent between the first stage and the second stage, and movement in the Y axis is not independent between the first stage and the second stage, and scanning the second stage while the first substrate is unloaded from the first stage. - View Dependent Claims (6, 7)
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Specification