Submitted on: 09 April 2013.
Revised on: 05 July 2013.
Accepted on: 28 August 2013.
___________________IEEE TRANSACTIONS ON ELECTRON DEVICES
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Submitted on: 29 May 2020.
Revised on: 12 July 2020.
Accepted on: 07 September 2020.
___________________IEEE TRANSACTIONS ON ELECTRON DEVICES
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