Wireless substrate-like sensor
First Claim
1. A wireless substrate-like sensor comprising:
- a substrate-like housing;
a power source adapted to provide power to the sensor;
an image acquisition system comprising an area array device adapted to acquire an image of a target;
a processor operably coupled to the image acquisition system, the processor being adapted to process the image and to obtain data relating a position of the target relative to a position of the sensor in at least two degrees of freedom; and
a wireless communication module coupled to the processor to wirelessly convey the data to an external device.
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Accused Products
Abstract
A wireless substrate-like sensor is provided to facilitate alignment and calibration of semiconductor processing systems. The wireless substrate-like sensor includes an optical image acquisition system that acquires one or more images of targets placed within the semiconductor processing system. Analysis of images of the targets obtained by the wireless substrate-like sensor provides position and/or orientation information in at least three degrees of freedom. An additional target is affixed to a known location within the semiconductor processing system such that imaging the reference position with the wireless substrate-like sensor allows the measurement and compensation for pick-up errors.
109 Citations
17 Claims
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1. A wireless substrate-like sensor comprising:
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a substrate-like housing; a power source adapted to provide power to the sensor; an image acquisition system comprising an area array device adapted to acquire an image of a target; a processor operably coupled to the image acquisition system, the processor being adapted to process the image and to obtain data relating a position of the target relative to a position of the sensor in at least two degrees of freedom; and a wireless communication module coupled to the processor to wirelessly convey the data to an external device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification