TFT Flashcards

1
Q

Diferenças entre MOSFET’s e TFT’s

A

Mosfet:
- Trabalha em INVERSÃO
-4 terminais
-Construido “dentro” do substrato

TFT:
-Trabalha em acumulação
-3 terminais
-Construido em “cima” do substrato

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1
Q

Electrolyte Gate Transistors (EGTs)

A

Electrolytes are ionic conductors and electrical insulators

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2
Q

Main features EGT’s

A

-Baixas tensões de operação
-Alta capacidade
-Eletrical double layer
-Fully printed
-Dois modos de operação

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3
Q

Desvantagens EGT’s

A

-Altas correntes de fuga
-Switching delays
-Grandes capacidades parasitas

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4
Q

MODOS EGT

A

-Field effect mode
-Eletromechanical mode

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5
Q

Eletromechanical mode

A
  • positive VG leads to oxidation of polypyrrole that turns it conductive
    Device operation was based on redox reaction
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