Electrophoretic deposition of ferrite for computer stores

A method for the batch fabrication of storage elements by the electrophoretic deposition of ferrite onto platinum wires is described. Two types of experimental arrays of storage elements and their operating characteristics are given. One consists of an array of orthogonal wires coated with ferrite, the storage elements being formed at the intersection points of the wires. The second uses the rotational switching properties of very thin ferrite coatings on single wires with external strip conductors acting as word lines. The potential of this method of fabrication is shown to be considerable in reducing costs of both storage arrays and associated electronics.