Patent US5428508A successfully refreshed from Google Patents.
US5428508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for providing electromagnetic shielding of an electrical circuit
Assignee: Motorola Solutions Inc
•
Filing: 1994-04-29
•
Granted: 1995-06-27
•
Expires: 2014-04-29
Abstract
Abstract An electrical circuit (101) that is disposed on a substrate (103) employs a method and apparatus for providing electromagnetic shielding of the electrical circuit (101). One or more compressible, electrically conductive contacts (107), each of which includes a substantially planar portion (201), are coupled at their respective planar portions (201) to a receptacle area (105) on the substrate (103) that substantially encircles the electrical circuit (101). A shielding enclosure (109) having a top portion (110) and a plurality of side portions (111) is positioned upon the compressible, electrically conductive contacts (107) such that the side portions (111) compress at least some of the compressible, electrically conductive contacts (107) to substantially enclose the electrical circuit (101).
Inventors
- 👤 Stephen R. Pronto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:34
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/002; H05K9/0022; H05K9/0024; H05K9/0026; H05K9/0028; H05K9/003; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/4921; Y10T29/49211
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
140 words
A method for providing electromagnetic shielding of an electrical circuit that is disposed on a substrate, the method comprising the steps of: a) providing at least one compressible, electrically conductive, essentially Z-shaped contact that includes a substantially planar first portion; b) conductively affixing, substantially simultaneously with the disposition of the electrical circuit on the substrate, the substantially planar first portion of the at least one compressible, electrically conductive essentially Z-shaped contact to at least one receptacle area on the substrate that substantially encircles the electrical circuit; and c) positioning a shielding enclosure that includes a top portion and a plurality of side portions upon the at least one compressible, electrically conductive essentially Z-shaped contact such that the plurality of side portions compress removably against the at least one compressible, electrically conductive essentially Z-shaped contact to substantially enclose the electrical circuit.
Claim 2
Independent Claim
140 words
A method for providing electromagnetic shielding of an electrical circuit that is disposed on a substrate, the method comprising the steps of: a) providing at least one compressible, electrically conductive, essentially Z-shaped contact that includes a substantially planar first portion; b) conductively affixing, substantially simultaneously with the disposition of the electrical circuit on the substrate, the substantially planar first portion of the at least one compressible, electrically conductive essentially Z-shaped contact to at least one receptacle area on the substrate that substantially encircles the electrical circuit; and c) positioning a shielding enclosure that includes a top portion and a plurality of side portions upon the at least one compressible, electrically conductive essentially Z-shaped contact such that the plurality of side portions compress removably against the at least one compressible, electrically conductive essentially Z-shaped contact to substantially enclose the electrical circuit.
Claim 3
Dependent Claim
30 words
The method of claim 1, wherein step (a) comprises the step of providing a plurality of compressible, electrically conductive essentially Z-shaped contacts that each includes a substantially planar first portion.
Claim 4
Dependent Claim
37 words
The method of claim 2, wherein step (b) comprises the step of coupling the substantially planar first portion of each of the plurality of compressible, electrically conductive essentially Z-shaped contacts to the at least one receptacle area.
Claim 5
Dependent Claim
37 words
The method of claim 3, wherein step (b) comprises the step of soldering the substantially planar first portion of each of the plurality of compressible, electrically conductive essentially Z-shaped contacts to the at least one receptacle area.
Claim 6
Dependent Claim
51 words
The method of claim 3, wherein step (c) comprises the step of positioning the shielding enclosure upon the plurality of compressible, electrically conductive essentially Z-shaped contacts such that the plurality of side portions compress at least some of the plurality of compressible, electrically conductive contacts to substantially enclose the electrical circuit.
Claim 7
Dependent Claim
32 words
The method of claim 1, wherein step (b) further comprises the step of automatically placing the at least one compressible, electrically conductive essentially Z-shaped contact onto the at least one receptacle area.
References Cited (Backward Citations)
US4838475A
Cited
US4890199A
Cited
JPH031599A
Cited
GB2236215A
Cited
US5055651A
Cited
US5170321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-06-26 | 1998-12-26 | 1999-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-06-26 | 2002-12-26 | 2003-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-06-26 | 2006-12-26 | 2007-06-27 | $7700.00 | Window Closed / Lapsed |