Shield assembly and method of shielding suitable for use in a communication device

• US 5,633,786 A
• Filed: 08/21/1995
• Issued: 05/27/1997
• Est. Priority Date: 08/21/1995
• Status: Expired due to Term

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Hannon, John F., Lee, Jin W., Matuszewski, Scott W., Kimbell, Martin J.
• Primary Examiner(s): Picard, Leo P.
• Assistant Examiner(s): Dinkins, Anthony
• Application Number:
  US08/517,496
• Time in Patent Office: 645 Days
• Field of Search: 361/796, 361/816, 361/818, 361/814, 361/753, 361/800, 361/799, 174/35 R, 174/35 GC, 174/51, 174/35 TS, 307/89, 307/91, 330/68, 334/85, 257/728, 257/659, 257/660
• US Class Current: 361/818
• CPC Class Codes: H04B 1/3833 Hand-held transceivers
• CPC Class Codes: H05K 9/0032 having multiple parts, e.g. frames mating with lids

Abstract

A shielding assembly (102) for shielding an electronic circuit (108) disposed on a substrate (107) includes traces (118) and a shield (200). The traces (118) are disposed on the substrate (107) about the electronic circuit (108). The shield (200) includes leads (214, 218) for attachment to the traces (118). The shield (200) is attached to the traces (118) such that some of the leads (218), which are staggered, attach to the traces (118) in a nonconsecutive manner. An additional shield (201) including alternately staggered leads (222) can be adjacently attached to the previously attached shield (200). This is accomplished by attaching the alternately staggered leads (222) of the additional shield (201) to those traces that are between the traces attached to the previously attached shield (200).

Claims

1. A shield assembly for shielding an electronic circuit disposed on a substrate, the shield assembly comprising:

a plurality of consecutive traces disposed on the substrate about the electronic circuit; and

a first shield having a first plurality of consecutive leads for attachment to the plurality of consecutive traces, at least some of the first plurality of consecutive leads being attached to nonconsecutive ones of the plurality of consecutive traces.

2. A shield assembly according to claim 1 further comprising:

a second shield having a second plurality of consecutive leads for attachment to the plurality of consecutive traces, at least some of the second plurality of consecutive leads being attached to traces between the nonconsecutive ones of the plurality of consecutive traces.

3. A shield assembly according to claim 2 wherein the nonconsecutive ones of the plurality of consecutive traces and the traces between the nonconsecutive ones of the plurality of consecutive traces form a single row.

4. A shield assembly according to claim 3 wherein the nonconsecutive ones of the plurality of traces include every other trace of the single row.

5. A shield assembly according to claim 2 wherein the at least some of the first plurality of consecutive leads and the at least some of the second plurality of consecutive leads are staggered about a center of the nonconsecutive ones of the plurality of consecutive traces and the traces between the nonconsecutive ones of the plurality of consecutive traces.

6. A shield assembly according to claim 1 wherein the at least some of the first plurality of consecutive leads are offset from a center of the first set of nonconsecutive ones of the plurality of consecutive traces.

7. A shield assembly according to claim 1 wherein the first plurality of consecutive leads of the first shield are substantially orthogonal to the plurality of consecutive traces.

8. A shield assembly for shielding an electronic circuit disposed on a substrate, the shield assembly comprising:

a plurality of consecutive traces disposed on the substrate about the electronic circuit, at least some of the plurality of consecutive traces forming a row;

a first shield having at least a first edge, the at least a first edge including at least a first lead extending downward therefrom and attached to a first set of traces of the row; and

a second shield having at least a second edge, the at least a second edge including at least a second lead extending downward therefrom and attached to a second set of traces of the row so that the at least a first edge of the first shield and the at least a second edge of the second shield are adjacent to one another.

9. A shield assembly according to claim 8 wherein the first set of traces of the row includes every other trace of the row.

10. A shield assembly according to claim 8 wherein the second set of traces of the row includes every other trace of the row.

11. A shield assembly according to claim 8 wherein the row consists of traces of the first set of traces alternated with traces of the second set of traces.

12. A shield assembly according to claim 8 wherein the at least a first lead and the at least a second lead extend substantially orthogonal from the at least some of the plurality of consecutive traces of the row.

13. A shield assembly according to claim 8 wherein the at least a first lead and the at least a second lead are staggered about the at least a first edge and the at least a second edge.

14. A shield assembly according to claim 8 wherein the at least a first lead and the at least a second lead are staggered about a center of the row.

15. A shield assembly for shielding an electronic circuit disposed on a substrate, the shield assembly comprising:

a plurality of consecutive traces disposed on the substrate for the electronic circuit, at least some of the plurality of consecutive traces arranged in a row; and

a plurality of shields for shielding the electronic circuit, each one of the plurality of shields having a plurality of consecutive leads for attachment to the plurality of consecutive traces, at least some of the plurality of consecutive leads of a first one of the plurality of shields and at least some of the plurality of consecutive leads of a second one of the plurality of shields being staggered so as to attach to different ones of the at least some of the plurality of consecutive traces of the row when the first one of the plurality of shields and the second one of the plurality of shields are adjacently positioned.

16. A communication device having a housing, the communication device comprising:

a substrate disposed within the housing;

a transceiver circuit disposed on the substrate;

a plurality of consecutive traces disposed on the substrate about the transceiver circuit, at least some of the plurality of consecutive traces forming a row;

a first shield having at least a first edge, the at least a first edge including at least a first lead extending downward therefrom and attached to a first set of traces of the row offset a center thereof, the at least a first lead substantially orthogonal to the first set of traces of the row; and

a second shield having at least a second edge, the at least a second edge including at least a second lead extending downward therefrom and attached to a second set of traces of the row offset a center thereof, the at least a second lead substantially orthogonal to the second set of traces of the row and substantially parallel to the at least a first lead, the second set of traces differing from the first set of traces, the at least a first edge of the first shield and the at least a second edge of the second shield being adjacent to one another.

17. A method of shielding an electronic circuit disposed on a substrate comprising the steps of:

providing a plurality of consecutive traces disposed on the substrate about the electronic circuit; and

attaching a first shield having a first plurality of consecutive leads to the plurality of consecutive traces such that at least some of the first plurality of consecutive leads couple nonconsecutive ones of the plurality of consecutive traces.

18. A method of shielding according to claim 17 further comprising the step of:

attaching a second shield having a second plurality of consecutive leads to the plurality of consecutive traces such that at least some of the second plurality of consecutive leads attach traces between the nonconsecutive ones of the plurality of consecutive traces.

19. A method of shielding according to claim 17 wherein the step of attaching is preceded by the step of:

positioning the first shield upon the substrate such that the first plurality of consecutive leads rest upon the plurality of consecutive traces and the at least some of the first plurality of consecutive leads rest upon the nonconsecutive ones of the plurality of consecutive traces offset a center thereof.

20. A method of shielding according to claim 18 wherein the step of attaching is preceded by the step of:

positioning the second shield upon the substrate adjacent to the first shield such that the second plurality of consecutive leads rest upon the plurality of consecutive traces and the at least some of the second plurality of consecutive leads rest upon the traces between nonconsecutive ones of the plurality of consecutive traces offset a center thereof.