Electrical component having an inductor and a method of formation

• US 7,924,131 B2
• Filed: 05/19/2006
• Issued: 04/12/2011
• Est. Priority Date: 05/19/2006
• Status: Expired due to Fees

• Current Assignee: North Star Innovations Inc. (Wi-LAN Inc.)
• Original Assignee: Freescale Semiconductor, Inc. (NXP Semiconductors NV)
• Inventors: Walls, James A.
• Primary Examiner(s): NGUYEN, TUYEN T
• Application Number:
  US11/437,073
• Publication Number:
  US 20070268105A1
• Time in Patent Office: 1,789 Days
• Field of Search: 336/65, 336/83, 336/200, 336205-208, 336/232, 257/531
• US Class Current: 336/200
• CPC Class Codes: H01F 17/0013 with stacked layers
• CPC Class Codes: H01F 41/041 Printed circuit coils apparatus or processes for manufacturing printed circuits in general H05K3/00
• CPC Class Codes: H01L 23/49822 Multilayer substrates multilayer metallisation on monolayer substrate H01L23/498
• CPC Class Codes: H01L 23/5227 Inductive arrangements or effects of, or between, wiring layers other inductive arrangements H01L23/645
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

An electrical component (100) having an inductor includes: (a) a first substrate (102) comprising at least one first electrically conductive layer (108, 110, 112); (b) one or more second substrates (104, 106) comprising at least one second electrically conductive layer (120, 132, 144); and (c) one or more electrical interconnections (124, 134, 142) electrically coupling the at least one first electrically conductive layer and the at least one second electrically conductive layer, wherein the one or more first electrically conductive layers, the one or more second electrically conductive layers and the one or more electrical interconnections are electrically coupled together to form the inductor (150).

Claims

1. An electrical component comprising:

a first substrate having a first electrical conductor, the first electrical conductor having a first end and a second end; and

a second substrate having a second electrical conductor and a third electrical conductor, the second and third electrical conductors each having first and second ends;

the first substrate and the second substrate stacked to form a multi-layer assembly, wherein the first electrical conductor, the second electrical conductor, and the third electrical conductor are positioned to be substantially parallel with each other and in a single plane, and wherein the first and second ends of the first, second, and third electrical conductors are selectively coupled together to form a single spiral inductor using the first, second, and third electrical conductors.

2. The electrical component of claim 1, wherein the first, second, and third electrical conductors are selectively coupled together using a plurality of vias.

3. The electrical component of claim 1, wherein, with respect to a predetermined perspective, the first ends are near ends and the second ends are far ends, wherein the first end of the first electrical conductor is electrically connected to the first end of the third electrical conductor, and wherein the second end of the first electrical conductor is electrically connected to the second end of the second electrical conductor.

4. The electrical component of claim 3, wherein an electrical connection for electrically connecting the first ends of the first and third electrical conductors comprises a plurality of vias.

5. The electrical component of claim 4, wherein the plurality of vias comprises a row of vias.

6. The electrical component of claim 4, wherein the plurality of vias comprises a plurality of rows of vias.

7. The electrical component of claim 1, further comprising a third substrate having a fourth electrical conductor, the third substrate stacked with the first and second substrates to form the multi-layer assembly.

8. The electrical component of claim 7, wherein the fourth electrical conductor is selectively coupled together with the first, second, and third electrical conductors to form the single spiral inductor.

9. The electrical component of claim 8, wherein the fourth electrical conductor has a first end and a second end, wherein the fourth electrical conductor is substantially parallel with the first, second, and third electrical conductors, and wherein the second end of the second electrical conductor is electrically coupled to the second end of the fourth electrical conductor.

10. The electrical component of claim 1, wherein each of the first and second substrates comprises one of a semiconductor substrate, a high density interconnect substrate, or a printed circuit board.