Accession Number : AD0163837


Title :   Leadless Microminiature Inductance Element with a Closed Magnetic Circuit.


Descriptive Note : Patent,


Corporate Author : OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C


Personal Author(s) : Bailey,John P. ; Muckelroy,William L.


Report Date : 12 SEP 1972


Pagination or Media Count : 5


Abstract : The patent describes a microminiature leadless inductance element having a closed magnetic loop. The inductance element comprises a conventional U-shaped ferromagnetic core having a wire winding around its center. Grooves are provided at the underside of the feet of the U-shaped core so as to receive the terminal portons of the wire winding. The grooves are coated with an electrical conductor and a similar electrically conductive coating is provided on the substrate such that an electrical connection is made without the use of soldering wires. A closed magnetic loop is achieved by applying a ferromagnetic coating along a portion of the substrate surface such that when the U-shaped core is placed on the substrate, all the flux lines generated within the core are conducted through the ferromagnetic coating on the substrate.


Descriptors :   (*MAGNET COILS, *PATENTS), MICROELECTRONICS, COATINGS


Subject Categories : ELECTRICAL AND ELECTRONIC EQUIPMENT


Distribution Statement : APPROVED FOR PUBLIC RELEASE