System and method to improve productivity of hybrid scan ion beam implanters
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United States of America Patent
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Jul 18, 2017
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Dec 28, 2015
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Dec 26, 2014
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Abstract
A method for improving the productivity of a hybrid scan implanter by determining an optimum scan width is provided. A method of tuning a scanned ion beam is provided, where a desired beam current is determined to implant a workpiece with desired properties. The scanned beam is tuned utilizing a setup Faraday cup. A scan width is adjusted to obtain an optimal scan width using setup Faraday time signals. Optics are tuned for a desired flux value corresponding to a desired dosage. Uniformity of a flux distribution is controlled when the desired flux value is obtained. An angular distribution of the ion beam is further measured.
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