Integrated circuit inductors
First Claim
1. A memory system comprising:
- a substrate having a plurality of memory cells and a coating; and
a conductive path interwoven with the substrate and operable for creating a magnetic field in the coating but not above the coating.
7 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to an inductor comprising a plurality of interconnected conductive segments interwoven with a substrate. The inductance of the inductor is increased through the use of coatings and films of ferromagnetic materials such as magnetic metals, alloys, and oxides. The inductor is compatible with integrated circuit manufacturing techniques and eliminates the need in many systems and circuits for large off chip inductors. A sense and measurement coil, which is fabricated on the same substrate as the inductor, provides the capability to measure the magnetic field or flux produced by the inductor. This on chip measurement capability supplies information that permits circuit engineers to design and fabricate on chip inductors to very tight tolerances.
-
Citations
36 Claims
-
1. A memory system comprising:
-
a substrate having a plurality of memory cells and a coating; and
a conductive path interwoven with the substrate and operable for creating a magnetic field in the coating but not above the coating. - View Dependent Claims (2, 3, 4)
-
-
5. A memory system comprising:
-
a substrate;
a coating formed on a first portion of the substrate;
a circuit formed on a second portion of the substrate, the circuit having a plurality of memory cells; and
a conductive path interwoven with the substrate so as to surround the coating and be operable to create a magnetic field in the coating but not above the coating. - View Dependent Claims (6, 7, 8, 9, 10)
-
-
11. A memory system comprising:
-
a substrate;
a circuit formed on the substrate, the circuit comprising a plurality of memory cells;
a magnetic film having first and second edges formed atop a portion of the substrate;
a contiguous conductive coil having first segments that pass through the substrate adjacent the first and second edges, and second segments that traverse the magnetic film; and
wherein the contiguous conductive coil is operative to create a magnetic field in the magnetic film but not above the magnetic film. - View Dependent Claims (12, 13, 14, 15, 16, 17)
-
-
18. A memory system comprising:
-
a semiconductor substrate having first and second opposing surfaces;
a coating formed on a first portion of the first surface;
a plurality of memory cells formed on a second portion of the first surface;
a coil interwoven with the substrate and magnetically coupled to the coating so as to form a magnetic field within the coating but not above the coating when a current passes through the coil; and
wherein the plurality of memory cells are electrically connected to the coil. - View Dependent Claims (19, 20, 21, 22)
-
-
23. A memory system comprising:
-
a substrate;
a plurality of memory cells formed integral with the substrate;
a conductive coil having an inductance and connected to the memory cells, the coil being interwoven with a portion of the substrate by passing through the substrate through a plurality of subtending holes formed in the substrate;
a coating formed on the substrate and surrounded by the coil, the coating designed to increase the inductance of the coil; and
wherein the coil is operative to create a magnetic field in the coating but not above the coating. - View Dependent Claims (24, 25, 26)
-
-
27. A memory system comprising:
-
a substrate;
a magnetic film formed over a portion of the substrate;
a conductive path located at least partially above the magnetic film that pierces the magnetic film and is interlaced with the substrate;
a plurality of memory cells formed on the substrate and operatively coupled to the conductive path; and
wherein the conductive path is operable for creating a magnetic field in the magnetic film but not above the magnetic film. - View Dependent Claims (28, 29, 30)
-
-
31. A memory system comprising:
-
a substrate;
a plurality of memory cells formed integral with the substrate;
a coating formed over a portion of the substrate remote from the plurality of memory cells;
a conductive coil formed integral with the substrate, with a portion of the coil surrounding the coating so as to create a magnetic field within the coating but not above the coating; and
wherein the memory cells and conductive coil are operatively coupled. - View Dependent Claims (32, 33, 34, 35, 36)
-
Specification