公开(公告)号：CA1111556A

公开(公告)日：1981-10-27

申请号：CA299070

申请日：1978-03-16

Applicant: BASF AG

Inventor： HENKLER HERBERT ,  KOENIG ROLAND ,  DEICHELMANN HERMANN ,  KOCH VOLKER

IPC: G11C11/14 ,  G11C19/08 ,  H01F10/06

Abstract: : A magnetic domain storage device comprising a ferromagnetic, polycrystalline metal layer which is applied to a support and comprises areas of different coercivity, the areas of lower coercivity in the form of strip-shaped channels being surrounded by areas of higher coercivity, a system of electrical conductors, extending in planes arranged parallel and in close vicinity to the support, for creating, propagating and detecting magnetic domains in the channels of low coercivity, and a baseplate with electrical connections, the areas of lower coercivity being in the form of channels which follow a quasispiral path on the support, with on end adjacent to the center of the support and the other end adjacent to a corner of the support and executing at least one full 360.degree. turn.