PROGRAMMING 2-BIT PIN DIODE IN SYNOPSYS TCAD-Reference-Cited by-同舟云学术

PROGRAMMING 2-BIT PIN DIODE IN SYNOPSYS TCAD

Published:2018-12-06 Issue:5 Volume: Page:51-59
ISSN:1993-8985
Container-title:Journal of the Russian Universities. Radioelectronics
language:
Short-container-title:Izv. vysš. učebn. zaved. Ross., Radioèlektron.

Author:

Danilenko Alexander A.¹,Strygin Anton V.¹,Mikhailov Nikolay I.¹,Perepelovsky Vadim V.¹,Panichev Yaroslav N.²,Marochkin Vladislav V.³,Ivanov Vladimir L.⁴

Affiliation:

1. Saint Petersburg Electrotechnical University "LETI"

2. JSC "Morion"

3. Pixpolar Oy

4. ITMO University

Abstract

The article is devoted to the modeling of a two-bit pin-diode. The possibility of programming opening time of the device based on the pin-diode is shown. The design consisting of a pin diode and two floating gates on the surface of i-region is considered. The addition of electrodes to the surface of the i-region makes it possible to regulate the concentration of electrons and holes within the larger limits in compare with the single-gate structure creating enriched and depleted are-as in the structure. Programming is carried out by applying the appropriate voltage to the control electrodes of the floating gates. It is shown that the charge generated on the floating gate changes characteristics of the i-region of the pin diode.The key elements of complex simulation of the two-gate pin diode are simulation of charge accumulation mechanism on the floating gate, simulation of pin-diode opening time and calibration of numerical model. Simulation is performed in Synopsys Sentaurus TCAD. Physical models describing traps and their parameters, particle tunneling, transport phenomena in dielectrics and amorphous films are used in simulation. As a result of modeling, the opening time dependences on size, floating gate location and floating gate charge magnitude are obtained.It is shown that the pin-diode 2-gate structures allow to change the opening time in a wider range than the single-gate ones. To program a large range of pin-diode opening times, it is 2 gate structure that is advisable to use. The obtained results indicate that it is possible to implement a two-bit programming pin-diode and expand its functionality.

Publisher

St. Petersburg Electrotechnical University LETI

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