Low-temperature-cofired-ceramic (LTCC) tape structures including

Inductor devices – With coil or magnetic material

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

336183, 336200, 336232, 336233, H01F 1704, H01F 2730

Patent

active

055326676

ABSTRACT:
A ferromagnetic material (18,20) in ink or tape form is sinterable using a same firing profile as and has approximately the same thermal shrinkage characteristics as low-temperature-cofired-ceramic (LTCC) tape, and is chemically non-reactive therewith. The ferromagnetic material (18,20) is applied to the surfaces of LTCC tape sheets (12,14,16) to form desired elements such as cores for inductors (22) and transformers and magnetic shields. Ferromagnetic vertical interconnects (vias) (54) can be formed by punching holes (56) through tape sheets (46) and filling them with ferromagnetic ink. The tape sheets (12,14,16) and ferromagnetic elements (18,20) are laminated together and cofired to form an integral structure (10). Ferromagnetic and non-magnetic components (114) can be fabricated separately and inserted into cavities (104a,-106a,108a) in tape sheets (104,106,108) prior to cofiring. A multi-layer transformer (250) includes primary (254b,-256b,258b,254d,256d,258d) and secondary (254c,256c,258c) coils, each being formed of vertically aligned, arcuate conductors which are printed on separate tape sheets (254,256,258) and vertically interconnected at their ends to form continuous electrical paths therethrough.

REFERENCES:
patent: 3483499 (1969-12-01), Lugten
patent: 3765082 (1973-10-01), Zyetz
patent: 3833872 (1974-09-01), Marcus et al.
patent: 4117588 (1978-10-01), Johnson

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

Low-temperature-cofired-ceramic (LTCC) tape structures including does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low-temperature-cofired-ceramic (LTCC) tape structures including, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-temperature-cofired-ceramic (LTCC) tape structures including will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1509815

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