Accession Number:

AD0683490

Title:

INVESTIGATION OF COINCIDENT RADIO-FREQUENCY DRIVE FOR NDRO IN THIN-FILM MEMORIES.

Descriptive Note:

Final rept.,

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE ELECTRONIC SYSTEMS LAB

Personal Author(s):

Report Date:

1968-09-01

Pagination or Media Count:

88.0

Abstract:

An investigation of the feasibility of applying radio-frequency drive techniques to a nondestructive readout NDRO thin magnetic film memory is described. The method was demonstrated as being very successful in obtaining coincident-frequency NDRO. Drive currents of 20 MHz and 40 MHz were used during readout, when it was observed that values for these currents as low as 30 mA peak-to-peak with 20-mil wide drive lines still gave discernible output signals. Coincident radio-frequency writing was found to be possible only under critical phase and bias conditions, being limited by domain boundary creep and noncoherent magnetization rotation. Author

Subject Categories:

  • Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE