US5530202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic RF or thermal shield for automatic vacuum placement
Assignee: Avaya Inc
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Filing: 1995-01-09
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Granted: 1996-06-25
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Expires: 2015-01-09
Abstract
Abstract A metallic RF or thermal shield (200, 200', 200'') has a non-perforated area (202) around its center of mass, of a radius (203) sufficient for pick-up and placement of the shield by automatic vacuum pick-up equipment during automated surface-mount circuit assembly.
Inventors
- 👤 Jack L. Dais
- 👤 Khalil N. Nikmanesh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:34
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/002; H05K9/0022; H05K9/0024; H05K9/0026
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
66 words
A shield for attenuating at least one of RF and thermal energy, the shield being metallic and having a center of mass, a perforated surface surrounding the center of mass, and a non-perforated area defined by the surface, the non-perforated area centered substantially on the center of mass and sized to permit pick-up and placement of the shield by an automatic vacuum pick-up and placement machine.
Claim 2
Dependent Claim
66 words
A shield for attenuating at least one of RF and thermal energy, the shield being metallic and having a center of mass, a perforated surface surrounding the center of mass, and a non-perforated area defined by the surface, the non-perforated area centered substantially on the center of mass and sized to permit pick-up and placement of the shield by an automatic vacuum pick-up and placement machine.
Claim 3
Dependent Claim
18 words
The shield of claim 1 wherein the non-perforated area is the largest non-perforated area defined by the surface.
Claim 4
Dependent Claim
19 words
The shield of claim 1 having a plurality of non-coplanar surfaces wherein all surfaces of the shield are perforated.
Claim 5
Dependent Claim
33 words
The shield of claim 2 having a plurality of non-coplanar surfaces wherein all surfaces of the shield are perforated and the non-perforated area is the largest non-perforated area defined by all said surfaces.
Claim 6
Dependent Claim
17 words
The shield of claim 1 wherein the non-perforated area has one of circular shape and rectangular shape.
Claim 7
Dependent Claim
31 words
The shield of claim 1 wherein both the surface and the non-perforated area are rectangular in shape and the non-perforated area is oriented at a 45° angle relative to the surface.
Claim 8
Dependent Claim
32 words
The shield of claim 1 wherein the shield is an RF shield and each perforation is no larger than one-twentieth of a wavelength of RF which the RF shield is to block.
Claim 9
Dependent Claim
61 words
The shield of claim 1 wherein the shield is a re-usable thermal shield and the thermal shield defines at least one detent along a surface thereof that temporarily contacts a circuit board during assembly operations, for temporarily engaging a corresponding at least one opening in the circuit board during assembly operations and thereafter for disengaging the corresponding at least one opening.
Claim 10
Dependent Claim
33 words
The shield of claim 1 wherein a surface of the shield defines an opening through which a component shielded by the shield is able to interact with an entity external to the shield.
Claim 11
Dependent Claim
31 words
The shield of claim 1 wherein a surface of the shield defines an opening through which a solder joint of a component shielded by the shield is able to be inspected.
Claim 12
Dependent Claim
88 words
A surface-mount shield for attenuating at least one of RF and thermal energy, the shield being metallic and having a center of mass and a plurality of perforated surfaces including a first perforated surface surrounding the center of mass, the first perforated surface defining a non-perforated flat and smooth area centered substantially on the center of mass and sized to permit pick-up and placement of the shield by an automatic vacuum pick-up and placement machine, the non-perforated area being the largest non-perforated area defined by all said surfaces.
Claim 13
Dependent Claim
88 words
A surface-mount shield for attenuating at least one of RF and thermal energy, the shield being metallic and having a center of mass and a plurality of perforated surfaces including a first perforated surface surrounding the center of mass, the first perforated surface defining a non-perforated flat and smooth area centered substantially on the center of mass and sized to permit pick-up and placement of the shield by an automatic vacuum pick-up and placement machine, the non-perforated area being the largest non-perforated area defined by all said surfaces.
Claim 14
Dependent Claim
89 words
A shield for attenuating at least one of RF and thermal energy, the shield having a center of mass, a plurality of non-coplanar perforated surfaces one of which surfaces is located adjacent to the center of mass, and a non-perforated area defined by said one surface, the non-perforated area being centered substantially on the center of mass and being sized to permit pick-up and placement of the shield by an automatic vacuum pick-up and placement machine, said non-perforated area being the largest non-perforated area defined by all said surfaces.
Claim 15
Dependent Claim
89 words
A shield for attenuating at least one of RF and thermal energy, the shield having a center of mass, a plurality of non-coplanar perforated surfaces one of which surfaces is located adjacent to the center of mass, and a non-perforated area defined by said one surface, the non-perforated area being centered substantially on the center of mass and being sized to permit pick-up and placement of the shield by an automatic vacuum pick-up and placement machine, said non-perforated area being the largest non-perforated area defined by all said surfaces.
Claim 16
Dependent Claim
10 words
The shield of claim 12 wherein the shield is metallic.
Claim 17
Dependent Claim
88 words
A surface-mount shield for attenuating at least one of RF and thermal energy, the shield having a center of mass and a plurality of non-coplanar perforated surfaces including a first perforated surface located adjacent to the center of mass, the first perforated surface defining a non-perforated flat and smooth area centered substantially on the center of mass and sized to permit pick-up and placement of the shield by an automatic vacuum pick-up and placement machine, the non-perforated area being the largest non-perforated area defined by all said surfaces.
Claim 18
Dependent Claim
88 words
A surface-mount shield for attenuating at least one of RF and thermal energy, the shield having a center of mass and a plurality of non-coplanar perforated surfaces including a first perforated surface located adjacent to the center of mass, the first perforated surface defining a non-perforated flat and smooth area centered substantially on the center of mass and sized to permit pick-up and placement of the shield by an automatic vacuum pick-up and placement machine, the non-perforated area being the largest non-perforated area defined by all said surfaces.
Claim 19
Dependent Claim
11 words
The surface-mount shield of claim 14 wherein the shield is metallic.
Claim 20
Dependent Claim
33 words
The surface-mount shield of claim 15 wherein both the first surface and the non-perforated area are rectangular in shape and the non-perforated area is oriented at a 45° angle relative to the surface.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-06-25 | 1999-12-25 | 2000-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-25 | 2003-12-25 | 2004-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-25 | 2007-12-25 | 2008-06-25 | $7700.00 | Window Closed / Lapsed |