THIN FILM TRANSISTOR TESTER AND CORRESPONDING TEST METHOD

THIN FILM TRANSISTOR TESTER AND CORRESPONDING TEST METHOD

To test electrical characteristics of a Thin Film Transistor (TFT) with a source or drain terminal left open and exposed, using a non-contact current source and protecting the TFTs from adverse effects, such as contamination, destruction, and the like. A tester 100 is provided to test a TFT array su...

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Hauptverfasser: IMURA KENICHI, SAKAGUCHI YOSHITAMI, NAKANO DAIJU
Format: Patent
Sprache:eng
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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creator IMURA KENICHI
SAKAGUCHI YOSHITAMI
NAKANO DAIJU
description To test electrical characteristics of a Thin Film Transistor (TFT) with a source or drain terminal left open and exposed, using a non-contact current source and protecting the TFTs from adverse effects, such as contamination, destruction, and the like. A tester 100 is provided to test a TFT array substrate 14 , the tester including ion flow supply devices 16 and 18 for supplying an ion flow onto the surface of a substrate 14 . Thereon, an array 12 of TFTs is formed, each TFT being connected to an electrode having a source or a drain left open and exposed; a control circuit 24 for supplying an operating voltage to a gate electrode of the TFT to be tested in the array; and a measurement circuit 24 for measuring an operating current via the testing TFT source or drain that remain in a non open state.
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subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title THIN FILM TRANSISTOR TESTER AND CORRESPONDING TEST METHOD
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