Patent ID: 7053460
Filing Date: 2006-05-30
Classification: H01L

Abstract:
1. A passive electrical device, comprising: a first spiral electrical conductor; a second spiral electrical conductor disposed over said first electrical conductor; a third electrical conductor connecting said first electrical conductor to said second electrical conductor, wherein said first spiral, second spiral and third electrical conductors are disposed on a semiconductor substrate and wherein the resistivity of said first spiral electrical conductor is approximately equal to the resistivity of said second spiral electrical conductor, and wherein said third electrical conductor has a thickness which separates said first electrical conductor from said second electrical conductor by a distance in a range of approximately three microns to approximately four microns and consists essentially of one substantially uniform chemical composition, wherein said second spiral electrical conductor occupies an area of not greater than 150 microns×150 microns, wherein said first and said second spiral electrical conductors have a coefficient of coupling of approximately 0.9 and wherein said device has an inductance of approximately 1.78 nh.