The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 1999
Filed:
Mar. 13, 1997
Joachim Norbert Burghartz, Shrub Oak, NY (US);
Keith Aelwyn Jenkins, Tarrytown, NY (US);
Mehmet Soyuer, Yorktown Heights, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An inductor structure includes an inductor spiral coil formed on a substrate; and a substrate contact connected to the substrate and disposed within a predetermined distance to the inductor spiral coil to increase the quality-factor (Q) characteristics associated with the inductor structure, and also does not increase eddy currents in the substrate. The substrate contact provides for implementation of the inductor structure as a spiral inductor which is integrated on a silicon substrate. The substrate contact determines the energy potential substantially adjacent to the inductor for reducing the noise level. In an implementation of an inductor in an RF circuit, the substrate contact contributes to providing an increased Q.