| 摘要 |
1,249,642. Magnetic structures. HONEYWELL Inc. 19 July, 1968 [9 Aug., 1967], No. 34675/68. Heading H1H. [Also in Division C7] A magnetic memory carrier bears a magnetic thin film having a uniform distribution of partsphere protrusions of diameter between 0.3 and 20 Á, preferably 1 to 4 Á. As described the carrier is a Be-Cu wire which has been electroplated with copper so as to produce a "caviar" surface (see Division C7), a thin film of non- magnetostrictive Ni-Fe alloy being uniformly electrodeposited thereover. Reference is made to the use of a non-ferromagnetic material other than copper such as electroless nickel or gold to form the " caviar " surface and also vaguely to using more than one layer of deposited material including material with dielectric, conductive or adhesive properties in the formation of the " caviar " finish. Magnetic films having such a finish provide better characteristics as regards output and disturbance sensitivity compared with smooth films. |
