Patent US5055651A successfully refreshed from Google Patents.
US5055651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interference shield suitable for use in automated manufacturing environment
Assignee: Motorola Solutions Inc
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Filing: 1990-08-01
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Granted: 1991-10-08
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Expires: 2010-08-01
Abstract
Abstract A housing (100), that is suitable for use in a automated manufacturing and/or testing environment, is constructed and arranged to substantially enclose and shield a trimmable electrical circuit (107) from radio frequency interference external to the housing (100). At least a portion of the housing (100) is constructed and arranged to shield while contemporaneously allowing a laser beam (114) to pass therethrough so as to focus on at least a portion of the trimmable electrical circuit (107) and thereby laser trim the trimmable electrical circuit (107).
Inventors
- 👤 Robert B. Schneider
- 👤 Nadim Halabi
- 👤 Daniel Peana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:29
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/12; B23K26/127; B23K26/351; Y; Y10; Y10S; Y10S174/00; Y10S174/34
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
119 words
An apparatus suitable for use in an automated manufacturing and/or testing environment, comprising: a housing constructed and arranged to substantially enclose and shield a trimmable electrical circuit from radio frequency interference external to the housing, the housing including at least one portion thereof being constructed and arranged to shield while contemporaneously allowing a laser beam to pass therethrough so as to focus on at least a portion of the trimmable electrical circuit and thereby laser trim the trimmable electrical circuit; and sensing means substantially enclosed within the housing for sensing a radio frequency signal emitted from the trimmable electrical circuit, thereby capable of measuring the frequency characteristics of the trimmable electrical circuit while contemporaneously performing a laser trimming operation.
Claim 2
Independent Claim
119 words
An apparatus suitable for use in an automated manufacturing and/or testing environment, comprising: a housing constructed and arranged to substantially enclose and shield a trimmable electrical circuit from radio frequency interference external to the housing, the housing including at least one portion thereof being constructed and arranged to shield while contemporaneously allowing a laser beam to pass therethrough so as to focus on at least a portion of the trimmable electrical circuit and thereby laser trim the trimmable electrical circuit; and sensing means substantially enclosed within the housing for sensing a radio frequency signal emitted from the trimmable electrical circuit, thereby capable of measuring the frequency characteristics of the trimmable electrical circuit while contemporaneously performing a laser trimming operation.
Claim 3
Dependent Claim
44 words
The apparatus of claim 1, wherein the housing includes a shielding screen mesh that allows the laser beam into the housing and to focus onto the trimmable electrical circuit while substantially shielding the trimmable electrical circuit from radio frequency interference external to the housing.
Claim 4
Dependent Claim
49 words
The apparatus of claim 1, wherein the housing includes a wave-guide of geometric dimensions and orientation to allow the substantially unattenuated laser beam into the housing and to focus onto the trimmable electrical circuit while substantially shielding the trimmable electrical circuit from radio frequency interference external to the housing.
Claim 5
Dependent Claim
43 words
The apparatus of claim 1, further comprising a selectively separable housing member to facilitate ingress and egress of the electrical circuit, such that the trimmable electrical circuit is substantially shielded from radio frequency interference external to the housing when enclosed within the housing.
Claim 6
Independent Claim
90 words
An apparatus suitable for use in an automated manufacturing and/or testing environment, comprising: a housing constructed and arranged to substantially enclose and shield a trimmable electrical circuit from radio frequency interference external to the housing, the housing including a wave-guide of geometric dimensions and orientation to allow a laser beam to pass substantially unattenuated therethrough so as to focus on at least a portion of the trimmable electrical circuit to perform a laser trimming operation while substantially shielding the trimmable electrical circuit from radio frequency interference external to the housing.
Claim 7
Independent Claim
90 words
An apparatus suitable for use in an automated manufacturing and/or testing environment, comprising: a housing constructed and arranged to substantially enclose and shield a trimmable electrical circuit from radio frequency interference external to the housing, the housing including a wave-guide of geometric dimensions and orientation to allow a laser beam to pass substantially unattenuated therethrough so as to focus on at least a portion of the trimmable electrical circuit to perform a laser trimming operation while substantially shielding the trimmable electrical circuit from radio frequency interference external to the housing.
Claim 8
Dependent Claim
44 words
The apparatus of claim 5, further comprising a selectively separable housing member to facilitate ingress and egress of the electrical trimmable circuit, such that the trimmable electrical circuit is substantially shielded from radio frequency interference external to the housing when enclosed within the housing.
Claim 9
Independent Claim
125 words
An apparatus suitable for use in an automated manufacturing and/or testing environment, comprising: a housing constructed and arranged to substantially enclose and shield a trimmable electrical circuit from radio frequency interference external to the housing, the housing including at least one portion thereof being constructed and arranged to substantially attenuate the external radio frequency interference while contemporaneously allowing a laser beam to pass therethrough so as to focus on at least a portion of the trimmable electrical circuit and thereby laser trim the trimmable electrical circuit; and sensing means substantially enclosed within the housing for sensing a radio frequency signal emitted from the trimmable electrical circuit, thereby capable of measuring the frequency characteristics of the trimmable electrical circuit while contemporaneously performing a laser trimming operation.
Claim 10
Independent Claim
125 words
An apparatus suitable for use in an automated manufacturing and/or testing environment, comprising: a housing constructed and arranged to substantially enclose and shield a trimmable electrical circuit from radio frequency interference external to the housing, the housing including at least one portion thereof being constructed and arranged to substantially attenuate the external radio frequency interference while contemporaneously allowing a laser beam to pass therethrough so as to focus on at least a portion of the trimmable electrical circuit and thereby laser trim the trimmable electrical circuit; and sensing means substantially enclosed within the housing for sensing a radio frequency signal emitted from the trimmable electrical circuit, thereby capable of measuring the frequency characteristics of the trimmable electrical circuit while contemporaneously performing a laser trimming operation.
Claim 11
Dependent Claim
40 words
The apparatus of claim 7, wherein the housing includes a shielding screen mesh that allows the laser beam into the housing and to focus onto the trimmable electrical circuit while substantially attenuating the external radio frequency interference within the housing.
Claim 12
Dependent Claim
45 words
The apparatus of claim 7, wherein the housing includes a wave-guide of geometric dimensions and orientation to allow the substantially unattenuated laser beam into the housing and to focus onto the trimmable electrical circuit while substantially attenuating the external radio frequency interference within the housing.
Claim 13
Dependent Claim
44 words
The apparatus of claim 7, further comprising a selectively separable housing member to facilitate ingress and egress of the electrical trimmable circuit, such that the trimmable electrical circuit is substantially shielded from radio frequency interference external to the housing when enclosed within the housing.
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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) | 1994-10-07 | 1995-04-08 | 1995-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-07 | 1999-04-08 | 1999-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-07 | 2003-04-08 | 2003-10-08 | $7700.00 | Window Closed / Lapsed |