Abstract
Previously time determined propagation of crossties and Bloch lines was described. More reliable methods of propagation are being pursued which are expected to increase the margins of operation. Two new approaches are described and the experimental results presented. Also a new bit stretching detector for a larger output signal is described. Anisotropic or isotropic Permalloy can be used. With isotropic Permalloy shift registers can bend around corners. Permalloy is deposited to a thickness of about 370 Å, then the Permalloy is masked and gold is plated through the photomask. The substrate is remasked and the Permalloy is etched to form serrated strips. The substrate is placed above a stripline and connections are made to the gold pads. This allows the use of Bitter solution for experimental observation. A complete device will require a dielectric layer with vias opened to the plated gold and a final metalization to form the stripline and other connections.
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