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Low-frequency noise in submicron MOSFET and HEMT structures

Project goals

The objective of this project is to achieve higher signal/noise ratio in submicron MOSFET and HEMT structures on the basis of low-frequency noise parameters assessment. We will thoroughly analyze the dependence of 1/f and RTS noise on longitudinal and transversal electric field intensity. In co-operation with sample producers Asahi Kasei (MOSFET) and CRL (HEMT) we will evaluate the dependence of low-frequency noise on sample geometry, technology and oxide layer preparation in order to determine noise sources and their localization. RTS noise capture and emission time constants will be explained using enhanced model of two-dimensional g-r process, based on Kolmogorov equation. The influence of low dimensional electron gas on 1/f noise will be analyzedinInGaAs/InAlAs heterostructures and similar high mobility devices.

Keywords

1/f noiseRTS noisenoise sourceMOSFETHEMT

Public support

  • Provider

    Czech Science Foundation

  • Programme

    Standard projects

  • Call for proposals

    Standardní projekty 11 (SGA02008GA-ST)

  • Main participants

  • Contest type

    VS - Public tender

  • Contract ID

    102/08/0260

Alternative language

  • Project name in Czech

    Nízkofrekvenční šum v submikronových MOSFET a HEMT strukturách

  • Annotation in Czech

    Cílem projektu je na základě studia nízkofrekvenčního šumu přispět ke zvýšení poměru signál/šum submikronových MOSFET a HEMT struktur. Provedeme podrobnou analýzu parametrů 1/f a RTS šumu v závislosti na intenzitě elektrického pole v podélném a příčném směru. Ve spolupráci s výrobci vzorků Asahi Kasei (MOSFET) a CRL (HEMT) budeme vyhodnocovat závislost nízkofrekvenčního šumu na geometrii, technologii výroby a přípravy oxidové vrstvy s cílem určit zdroje šumu a jejich lokalizaci. Bude upraven model RTS šumu vycházející z Kolomogorovových rovnic, popisující dvourozměrný g-r proces tak, aby se objasnily doby setrvání RTS šumu v obou stavech. Vliv elektronového plynu nízké dimenze na 1/f šum bude zkoumán ve strukturách s vysokou pohyblivostí nosičů na báziternárních sloučenin InGaAs/InAlAs.

Scientific branches

  • R&D category

    ZV - Basic research

  • CEP classification - main branch

    JA - Electronics and optoelectronics

  • CEP - secondary branch

  • CEP - another secondary branch

  • 20201 - Electrical and electronic engineering

Completed project evaluation

  • Provider evaluation

    U - Uspěl podle zadání (s publikovanými či patentovanými výsledky atd.)

  • Project results evaluation

    Project was focused on low-frequency noise study of modern microelectronic devices based on silicon and compound semiconductors (GaN, InGaAs). The main objective was to improve theoretical model of noise generation due to the charge carrier capture and emission by traps mainly on the channel-oxide layer interface and use it to determine trap parameters such as their activation energy and position

Solution timeline

  • Realization period - beginning

    Jan 1, 2008

  • Realization period - end

    Dec 31, 2010

  • Project status

    U - Finished project

  • Latest support payment

    Apr 16, 2010

Data delivery to CEP

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

  • Data delivery code

    CEP11-GA0-GA-U/03:3

  • Data delivery date

    Feb 9, 2015

Finance

  • Total approved costs

    1,050 thou. CZK

  • Public financial support

    1,050 thou. CZK

  • Other public sources

    0 thou. CZK

  • Non public and foreign sources

    0 thou. CZK

Basic information

Recognised costs

1 050 CZK thou.

Public support

1 050 CZK thou.

100%


Provider

Czech Science Foundation

CEP

JA - Electronics and optoelectronics

Solution period

01. 01. 2008 - 31. 12. 2010