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Crystallization of Amorphous LPCVD Silicon Films and Application to Bipolar and Thin Film Transistors

Published online by Cambridge University Press:  22 February 2011

Miltiadis K. Hatalis  and
David W. Greve
Miltiadis K. Hatalis
Affiliation:
Lehigh University, Dept. of Computer Science and Electrical Engineering, Bethlehem, PA 18015
David W. Greve
Affiliation:
Carnegie Mellon University, Dept. of Electrical and Computer Engineering, Pittsburgh, PA 15213
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Abstract

We studied the crystallization of LPCVD amorphous silicon films by TEM and found that the grain size of crystallized films depends upon the deposition and annealing conditions. The grain size increases as the deposition and/or the annealing temperature decreases. We also investigated the application of crystallized films in the fabrication of polysilicon emitter bipolar transistors and thin film transistors. The performance of bipolar transistors was found to have a small dependence on the grain size. In contrast, the performance of thin film transistors was strongly dependent upon the grain size.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 106: Symposium G – Polysilicon Films and Interfaces , 1987 , 335
Copyright
Copyright © Materials Research Society 1988

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References

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