Integrated transformer and method of fabrication thereof

Inductor devices – Coil or coil turn supports or spacers – Printed circuit-type coil

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07570144

ABSTRACT:
An integrated transformer structure includes a first coil element associated with a transverse axis, the first coil element having at least one turn. The first coil element includes a first portion provided on a first lateral level, and a second portion provided on a second lateral level. The first and second lateral levels being mutually spaced apart along said transverse axis. The first and second portions being displaced laterally from said axis by different respective distances. At least one crossover portion of the first coil element, in which the first coil element being configured to provide a conducting path through at least a portion of the first portion of the first coil element to the crossover portion, through the crossover portion and subsequently through at least a portion of the second portion of the first coil element, in which any change of flow direction along said path is less than 90° in a lateral direction.

REFERENCES:
patent: 6031445 (2000-02-01), Marty et al.
patent: 6114937 (2000-09-01), Burghartz et al.
patent: 6476704 (2002-11-01), Goff
patent: 6635949 (2003-10-01), Lowther et al.
patent: 6825749 (2004-11-01), Lin et al.
patent: 7068140 (2006-06-01), Chou
patent: 7164339 (2007-01-01), Huang
patent: 2001/0050607 (2001-12-01), Gardner
patent: 2003/0071706 (2003-04-01), Christensen
patent: 2003/0229982 (2003-12-01), Vilander et al.
patent: 2004/0017278 (2004-01-01), Castaneda et al.
patent: 2004/0046630 (2004-03-01), Gardner
patent: 2004/0056749 (2004-03-01), Kahlmann et al.
patent: 2004/0095222 (2004-05-01), Liang et al.
patent: 2005/0128038 (2005-06-01), Hyvonen
patent: 10261385 (2004-07-01), None
patent: 0649152 (1990-08-01), None
patent: 2381129 (2003-04-01), None
patent: 0146971 (2001-06-01), None
patent: 02065492 (2002-08-01), None
John R. Long, Monolithic Transformers for Silicon RF IC Design, IEEE Journal of Solid-State Circuits, vol. 35, No. 9, Sep. 2000, pp. 1368-1382.
Jianjun J. Zhou, Monolithic Transformers and Their Application in a Differential CMOS RF Low-Noise Amplifier, IEEE Journal of Solid-State Circuits, vol. 33, No. 12, Dec. 1998, pp. 2020-2027.
Sunderarajan S. Mohan, Modeling and Characterization of On-Chip Transformers, 1998 International Electron Devices Meeting Technical Digest, Dec. 1998, pp. 531-534.
Ichiro Aoki, Fully Integrated CMOS Power Amplifier Design Using the Distributed Active-Transformer Architecture, IEEE Journal of Solid-State Circuits, vol. 37, No. 3, Mar. 2002, pp. 371-383.
John R. Long, The Modeling, Characterization, and Design of Monolithic Inductors for Silicon RF IC's, IEEE Journal of Solid-State Circuits, vol. 32, No. 3, Mar. 1997, pp. 357-369.
Yo-Sheng Lin, Temperature-Dependance of Noise Figure of Monolithic RF Transformers on a Thin (20 um) Silicon Substrate, IEEE Electron Device Letters, vol. 26, No. 3, Mar. 2005, pp. 208-211.
Sang-Gug Lee, Area Efficient and Symmetric Design of Monolithic Transformers for Silicon RF ICs, TENCON 99. Proceedings of the IEEE Region 10 Conference, vol. 2, Dec. 1999, pp. 880-882.

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

Integrated transformer and method of fabrication thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Integrated transformer and method of fabrication thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated transformer and method of fabrication thereof will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4133568

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