US6064575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit module assembly
Assignee: Lockheed Martin Corp
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Filing: 1999-06-14
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Granted: 2000-05-16
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Expires: 2019-06-14
Abstract
Abstract A dual-board host or main printed wiring structure of a circuit module with increased component mounting area is made plug-compatible with a VME or VME64X backplane to which single-board host or main boards may be attached with connectors of differing dimensions and pin configurations, the center line of which are offset from each other. The connection sides of the two boards are respectively bonded to a heat sink frame structure having a thickness which corresponds to the connector offset on the backplane such that the total thickness of one of the printed wiring boards, the heat sink frame and the two bonding layers with respect to board to connector center line distances equals the connector offset at the backplane.
Inventors
- 👤 Eugene J. Urda
- 👤 Jeffrey T. Butler
- 👤 Christopher J. Kane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:46
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1461; H05K1/00; H05K1/02; H05K1/14; H05K1/144
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
182 words
A circuit module comprising: a first printed wiring board having a component side and a connection side, said first printed wiring board further having opposing side edges and a connection edge between said opposing side edges; heat sink ribs each having a first surface and a second surface, said first surface of each of said heat sink ribs being mounted along said opposing side edges of said first printed wiring board outside a component mounting area on said component side of said first printed wiring board; a second board having opposing side edges, said opposing side edges of said second board being mounted along said second surface of each of said heat sink ribs such that said opposing side edges of said first printed wiring board and said opposing side edges of said second board are mounted to said opposing heat sink ribs at said first and second surfaces thereof, and such that a clearance is provided between said second board and said component side of said first printed wiring board so that components can be mounted on said component side therebetween.
Claim 2
Dependent Claim
182 words
A circuit module comprising: a first printed wiring board having a component side and a connection side, said first printed wiring board further having opposing side edges and a connection edge between said opposing side edges; heat sink ribs each having a first surface and a second surface, said first surface of each of said heat sink ribs being mounted along said opposing side edges of said first printed wiring board outside a component mounting area on said component side of said first printed wiring board; a second board having opposing side edges, said opposing side edges of said second board being mounted along said second surface of each of said heat sink ribs such that said opposing side edges of said first printed wiring board and said opposing side edges of said second board are mounted to said opposing heat sink ribs at said first and second surfaces thereof, and such that a clearance is provided between said second board and said component side of said first printed wiring board so that components can be mounted on said component side therebetween.
Claim 3
Dependent Claim
14 words
The circuit module of claim 1, wherein said second board is a mezzanine board.
Claim 4
Dependent Claim
16 words
The circuit module of claim 2, wherein said mezzanine board is a triple size mezzanine board.
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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) | 2003-05-16 | 2003-11-15 | 2004-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-05-16 | 2007-11-15 | 2008-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-05-16 | 2011-11-15 | 2012-05-16 | $7700.00 | Window Closed / Lapsed |