Thin Film Memory

Thin film memory, developed in 1961 by Sperry Rand during a project funded by the U.S. research project refers to a faster variation of core memory technology.

Instead of a ferrite thin film is called ( thin film ) having a thickness of about 1.016 · 10-7 m of an alloy of iron-nickel, and permalloy, deposited by vacuum evaporation on a glass plate. This process produced an existing pattern of dots on the glass plate. Then, the conductive connections were printed circuit board by means of pressure. This type of memory was compared to core memory extremely fast access times in the range of 670 ns, but was very expensive to produce.

Thin - film memory has been used primarily in the military and in a few computers like the UNIVAC 1107 in the civil sector. Also in the IBM-S/360-Linie thin film was used. With the innovations in core memory, the thin film technology was obsolete.