a-Si TFT circuit integration on glass and plastic substrates

Titlea-Si TFT circuit integration on glass and plastic substrates
Publication TypeConference Paper
Year of Publication2003
AuthorsNathan, A., P. Servati, K. S. Karim, D. Striakhilev, and A. Sazonov
EditorKuo, Y.
PublisherElectrochem Soc, Elect Div; Electrochem Soc, Dielect Sci & Technol
Conference Location65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
ISBN Number1-56677-385-7

Although hydrogenated amorphous silicon (a-Si:H) is inherently disadvantaged in terms of speed and stability compared to polycrystalline or crystalline Si, there is an overwhelming need for this mature technology in several newly emerging and significant application areas. Here, the question arises as to whether circuit techniques can be employed to compensate for its intrinsic material shortcomings so as to meet performance requirements. The paper reviews precisely these challenges. Specifically, it examines design considerations pertinent to thin film circuits, such as on-pixel current drivers and amplifiers, whose integration requires non-conventional design solutions to deal with the high material resistivity and high instability. The family of circuits presented here are critical to two application areas: the organic electroluminescent display and digital fluoroscopy for medical applications.

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