Integrated circuit inductor with transverse interfaces
AssigneeApplied Micro Circuits Corporation
InventorsSiqi Fan, Hongming An
Life of this patent
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Abstract
An integrated circuit (IC) inductor structure is provided with transverse electrical interfaces. The inductor structure is formed on at least one IC circuit layer and has a first axis planar to a circuit layer surface, bisecting the inductor into opposite first and second sides. An input interface is formed on the circuit layer and connected to the inductor first side, parallel to a second axis, which is perpendicular to the first axis. An output interface is formed on the circuit layer and connected to the inductor second side, parallel to the second axis. In one aspect, the inductor has a center tap electrical interface parallel to the axis. In another aspect, the inductor includes a three-dimensional (3D) loop formed over a plurality of the circuit layers.
Claims14
An integrated circuit (IC) inductor structure with transverse electrical interfaces, the inductor structure comprising:
- an inductor formed on a first IC circuit layer having an first axis planar to a circuit layer surface, bisecting the inductor into opposite first and second sides;
- an input interface formed on the first circuit layer, connected to the inductor first side, parallel to a second axis, and perpendicular to the first axis;
- an output interface formed on the first circuit layer, connected to the inductor second side and parallel to the second axis;
- and,
- wherein the inductor includes a plurality of 3D loops formed on the first circuit layer and a second circuit layer, each of the 3D loops forming an outer core portion and an inner core portion on the first circuit layer.
An integrated circuit (IC) inductor-capacitor (LC) network, the LC network comprising:
- an plurality of adjacent inductor structures formed on a first circuit layer, each of the inductor structures having an first axis planar to a circuit layer surface, bisecting each of the inductor structures into opposite first and second sides, an input interface formed on the first circuit layer connected to the inductor first side, parallel to a second axis, and perpendicular to the first axis, an output interface formed on the first circuit layer connected to the inductor second side and parallel to the second axis, and a center tap electrical interface formed on the first circuit layer aligned in parallel with the first axis;
- a plurality of adjacent capacitors, each of the capacitors formed on the first circuit layer and having an input electrical interface connected to the center tap electrical interface of a corresponding one of the inductor structures;
- and,
- wherein the input and output electrical interfaces of adjacent inductor structures are connected.
An integrated circuit (IC) inductor structure with transverse electrical interfaces, the inductor structure comprising:
- an inductor formed on a first IC circuit layer having an first axis planar to a circuit layer surface, bisecting the inductor into opposite first and second sides;
- an input interface formed on the first circuit layer, connected to the inductor first side, parallel to a second axis, and perpendicular to the first axis;
- an output interface formed on the first circuit layer, connected to the inductor second side and parallel to the second axis;
- wherein the inductor includes a 3D loop formed on the first circuit layer and a second circuit layer, including:
- a first partial loop portion and a second partial loop portion formed on the first circuit layer;
- and,
- vias connecting the first and second partial loop portions through a bridge section on the second circuit layer.
An integrated circuit (IC) inductor structure with transverse electrical interfaces, the inductor structure comprising:
- an inductor formed on a first IC circuit layer having an first axis planar to a circuit layer surface, bisecting the inductor into opposite first and second sides;
- an input interface formed on the first circuit layer, connected to the inductor first side, parallel to a second axis, and perpendicular to the first axis;
- an output interface formed on the first circuit layer, connected to the inductor second side and parallel to the second axis;
- and,
- a center tap electrical interface formed on the first circuit layer, aligned in parallel with the first axis.
Dependencies are inferred from the claim text.