Thin film device

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

428615, 428620, 428901, 360126, 36013023, 36013032, B32B 900

Patent

active

055298311

ABSTRACT:
A thin film device comprising a substrate which is magnetic and has insulation property at least on the surface, coils formed spirally in a planar configuration on the substrate, a first interlayer insulation film formed to a portion excepting for the terminal portion of the coils and a magnetic material connection portion of the substrate, a magnetic film and a second interlayer insulation film formed successively on the first interlayer insulation film excepting for the terminal portions, and bump electrodes formed in connection with the terminal portions in which a crystallite material having a composition: Fe.sub.78 Ta.sub.10 C.sub.12 is used as the magnetic film. The thin film device can be formed an a reduced size and having a large inductance value. When the device is used as a noise filter, a cut-off frequency range can be lowered.

REFERENCES:
patent: 4024489 (1977-05-01), Bajorek et al.
patent: 4819112 (1989-04-01), Iwata et al.
patent: 4819113 (1989-04-01), Kubota et al.
patent: 5031063 (1991-07-01), Hasegawa
patent: 5287237 (1994-02-01), Kitada et al.
patent: 5302469 (1994-04-01), Sugenoya et al.
patent: 5431987 (1995-07-01), Ikeda
"A Study on Arranged Spiral Coil Type Inductor" from Papers of Technical Meeting (Meeting on Magnetics), published on Jan. 20, 1992; Editor: The Institute of Electrical Engineering of Japan.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Thin film device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thin film device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thin film device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2187448

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.