Thin Film Transistor Improvement Investigation.
Abstract
This program was undertaken to develop thin film transistor (TFT) flat panel display peripheral addressing circuitry amenable to display substrate integration. It included investigation of means to improve the gain and frequency response of thin film transistors for attainment of the foregoing objective. The major achievement of the program evolved during investigation of candidate peripheral addressing circuit configurations. Analytical studies indicated that the thin film bucket brigade device (BBD), developed for sensor applications on a prior program, might offer significant advantages of peripheral addressing when configured for the requisite serial to parallel function. This discovery came late in the program, permitting only one trial design. Results indicated the potential was indeed there, but attainment of greater charge transfer efficiency would be mandatory. The investigation for improvement of thin film transistors included (1) optimization of deposition and annealing parameters, (2) evaluation of new dielectric materials, and (3) techniques for reduction of device geometry. Initial effort concentrated on thin film transistors incorporating lead sulfide (PbS) as the semiconductor material.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1976
- Accession Number
- ADA027501
Entities
People
- K. O. Fugate
Organizations
- Aerojet Rocketdyne Holdings