Fundamentals of charge storage in acoustic charge transport devices

Author

Schmukler, Bruce C.

Author_Institution

Coordinated Sci. Lab., Illinois Univ., Urbana, IL, USA

fYear

1989

fDate

3-6 Oct 1989

Firstpage

217

Abstract

Double-packet storage is demonstrated for the first time, and the properties of single-packet and double-packet storage are compared. Double-packet storage is found to provide higher storage capacity with less storage voltage than single-packet storage. For the same SAW (surface acoustic wave) frequency, however, double-packet storage has half the bandwidth of single-packet storage. Intercell diffusion is a key factor that limits the storage capacity of single-packet storage, but it is not a key limiting factor for double-packet storage. Surface extraction can be a significant limiting factor for single-packet storage, if the doping level is too low. It was not found to be a significant factor for double-packet storage. The primary factor limiting the storage capacity of double-packet storage is the delay-line charge capacity

Keywords

acoustoelectric devices; frequency response; surface acoustic wave devices; SAW frequency; acoustic charge transport devices; bandwidth; delay-line charge capacity; doping level; double-packet storage; frequency response; intercell diffusion; single-packet storage; surface acoustic wave; Acoustic devices; Acoustic waves; Delay lines; Electrodes; Electrons; Frequency response; Gallium arsenide; Radio frequency; Surface waves; Threshold voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1989. Proceedings., IEEE 1989

Conference_Location

Montreal, Que.

Type

conf

DOI

10.1109/ULTSYM.1989.66985

Filename

66985