An "ORTHOCORE" magnetic shift register

A method for preparing a batch fabricated integrated magnetic shift register, "Orthocore" is described. The device consists of a complex pattern of printed wires encapsulated in plastic and coated with an electroless magnetic material. Some of the properties required of the material are discussed along with some of the optimum deposition parameters. Substrate considerations such as smoothness and coefficient of expansion are mentioned. The considerations used for a diodeless shift register are described and the design equations are presented. The resulting integrated shift registers are described and their operating conditions are given. The device is shown to have advantage in terms of reliability, cost, and environmental stability.