04597169 is referenced by 8 patents and cites 12 patents.

A microcoil having a winding on a composite core made up of a portion of substantially magnetic material and a portion of substantially non-magnetic material. The winding is split so that a part of the magnetic material core portion is exposed, and a laser is used to remove material from the exposed part of the magnetic core portion. The inductance of the coil is measured during the removal of the magnetic material, and the inductance of the coil is trimmed to a desired value through the removal of an appropriate amount of magnetic material. The non-magnetic core portion serves as a support structure for the portions of the winding on the core even if a substantial portion of the magnetic material is removed.

Title
Method of manufacturing a turnable microinductor
Application Number
6/617364
Publication Number
4597169
Application Date
June 5, 1984
Publication Date
July 1, 1986
Inventor
Edward R Chamberlin
Loveland
OH, US
Agent
Wood Herron & Evans
Assignee
Standex International Corporation
NH, US
IPC
H01F 7/06
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