Abstract
The information stored in a two-dimensional ferroelectric memory array can be read out nondestructively by sensing the piezoelectric response of the individual bits. This piezoelectric response is studied experinlentally for an individual bit that is electrically isolated from, but elastically coupled to. the rest of the array. Results show the presence of travelling acoustic waves that produce transient word-to-word piezoelectric coupling as well as static coupling between adjacent words due to the strain component parallel to the word electrodes. The electrical noise resulting from these interactions produces both a time shift (-2 pec) and an amplitude change 15 %) in the readout signal from a bit in a complete array. Variations in readout signal with temperature and input amplitude are also presented.
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