Ion implantation methods and structures thereof
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United States of America Patent
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Jan 9, 2018
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app pub date -
Aug 8, 2016
filing date -
Sep 30, 2014
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Abstract
A semiconductor device fabricated using a high-temperature ion implantation process is provided. The high-temperature ion implantation process includes providing a substrate having a plurality of fins. A mask material is deposited and patterned to expose a group of fins of the plurality of fins and a test structure. A first ion implantation may be performed, at a first temperature, through the group of fins and the test structure. Additionally, a second ion implantation may be performed, at a second temperature greater than the first temperature, through the group of fins and the test structure. An interstitial cluster is formed within the group of fins and within the test structure. Thereafter, an anneal process is performed, where the anneal process serves to remove the interstitial cluster from the group of fins and form at least one dislocation loop within the test structure.
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