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:
Feb. 29, 2000
Filed:
Nov. 25, 1998
Applicant:
Inventors:
Michel Marty, Saint Paul de Varces, FR;
Herve Jaouen, Meylan, FR;
Assignee:
STMicroelectronics S.A., Gentilly, FR;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
336200 ; 336223 ; 336232 ; 296021 ;
Abstract
A invention provides a transformer for use in integrated circuits, comprising four layers of conductive lines, separated from each other by first, second and third insulating layers. First conductive vias traverse the second insulating layer to connect said second and third pluralities of conducting lines, to form a first winding. Second conductive vias traverse the first, second and third insulating layers to connect said first and fourth pluralities of conducting lines to form a second winding, about and approximately concentric with said first winding.