Simple integration of non-volatile memory and complementary metal oxide semiconductor
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United States of America Patent
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Jan 30, 2018
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app pub date -
Oct 21, 2016
filing date -
Oct 21, 2016
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Abstract
A method that allows integrating complementary metal oxide semiconductor (CMOS) transistors and a non-volatile memory (NVM) transistor on a single substrate is provided. The NVM transistor includes a gate stack containing a high-k tunneling gate dielectric, a floating gate electrode, a high-k control gate dielectric and a control gate electrode. The high-k tunneling gate dielectric is formed form a first high-k dielectric layer employed in formation of a gate dielectric for a p-type field effect transistor (FET), the floating gate electrode is formed from a capping material layer employed in annealing the first high-k dielectric layer, and the high-k control gate dielectric is formed from a second high-k dielectric layer employed in formation of a gate dielectric for an n-type FET.
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