Fabrication and performance of a laminated nonvolatile nondestructive readout memory core

A technique was developed for the fabrication of 5.08 mm diameter cores using 0.025 or 0.013 mm thick magnetic sheet material. The technique uses the photoresist used in the photochemical etching process to serve as the adhesive as well. A test technique for the nondestructive readout characteristics of the cores was also developed.