EP 0716432 B1 20000223 - Planar inductor
Title (en)
Planar inductor
Title (de)
Planare Induktivität
Title (fr)
Inductivité plane
Publication
Application
Priority
DE 4442994 A 19941202
Abstract (en)
[origin: EP0716432A1] The inductance has at least one essentially spiral shaped coil (2, 3) formed on a flat substrate (1). A layer of ferromagnetic material (13) is arranged on the substrate (1). The ferromagnetic material (13) is applied to the substrate (1) in a coating process, within an insulation window (12) fastened to the substrate (1). The window (12) is preferably fastened to the substrate (1) by adhesive. The ferromagnetic material may be a coating material mixed with a ferromagnetic admixture, eg. ferrite powder. The value of the induction of the coil(s) (2,3) and/or the coupling between the coils (2, 3) may be determined by the alignment and/or the contour of the insulation window (12) and/or by the layer depth and/or combination of the ferromagnetic material (13).
IPC 1-7
IPC 8 full level
H01F 17/00 (2006.01); H01F 21/06 (2006.01); H01F 41/04 (2006.01)
CPC (source: EP US)
H01F 17/0006 (2013.01 - EP US); H01F 21/06 (2013.01 - EP US); H01F 41/046 (2013.01 - EP US); H01F 2017/0046 (2013.01 - EP US); H01F 2017/0086 (2013.01 - EP US); Y10T 29/4902 (2015.01 - EP US); Y10T 29/49073 (2015.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 4442994 A1 19960605; DE 59507840 D1 20000330; EP 0716432 A1 19960612; EP 0716432 B1 20000223; JP 3548643 B2 20040728; JP H08222437 A 19960830; US 2004004525 A1 20040108; US 6600403 B1 20030729; US 6722017 B2 20040420
DOCDB simple family (application)
DE 4442994 A 19941202; DE 59507840 T 19951129; EP 95203290 A 19951129; JP 31441595 A 19951201; US 41089103 A 20030410; US 56577595 A 19951201