Encapsulated magnetic memory element

Claim 1

The method of encapsulating ferrite magnetic cores, comprising the steps of: loading a measure quantity, such as 10 cc., of gamma-aminopropyltriethoxysilane liquid in a first container, loading a substantial bulk quantity, such as two million, of ferrite magnetic cores in a second container having a perforate bottom positioned over said first container and having a top opening for the exhaust of fumes, heating said silane liquid in said first container to a temperature of about 220* C. to vaporize the silane liquid, introducing an inert gas, such as nitrogen, having a known moisture content into said first container for passage with said vapor through said second container to provide a reaction environment containing a known moisture content, whereby the silane vapor polymerizes on the surfaces of the cores due to a chemical reaction involving moisture on the core surfaces and in the gaseous environment, and vibrating said cores in said first container to fully expose all surfaces of the cores to said silane vapor and to prevent the cores from sticking to each other, said treatment of the cores being continued for about 10 minutes or until the core surfaces are primed to a thickness of about a few hundred molecules of polymerized silane.