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:
Jun. 02, 1998
Filed:
Dec. 21, 1995
Andrew Z Grzegorek, San Jose, CA (US);
William J McFarland, Redwood City, CA (US);
Other;
Abstract
A planar inductor structure with improved Q compatible with typical integrated circuit fabrication. The structure includes a spiral inductor with a conductive plane between the resistive substrate of the integrated circuit and the spiral inductor which reduces the power loss of the inductor. A pattern of segments may be formed in the conductive material of conductive plane to prevent eddy currents from flowing through the conductive plane and reducing the inductance of the spiral inductor. The Q of the inductor can be enhanced by optimizing the pattern in which the segmented conductive plane is formed. The segmented conductive plane may be fabricated out of metal, polysilicon or a heavily-doped region of the substrate.