US5208732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Memory card with flexible conductor between substrate and metal cover
Assignee: Texas Instruments Inc
•
Filing: 1991-05-29
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Granted: 1993-05-04
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Expires: 2011-05-29
Abstract
Abstract A memory card has a housing including an interior chamber and a top metal cover. A substrate is located in the interior chamber and carries printed circuit leads, packaged semiconductor devices connected to selected printed circuit leads, and a connector connected to selected printed circuit leads. The packaged semiconductor devices are spaced from the top metal cover and a thermal coupler is located between the top metal cover and the packaged semiconductor devices for coupling heat generated by the packaged semiconductor devices to the top metal cover.
Inventors
- 👤 Daniel Baudouin
- 👤 Alton Carpenter
- 👤 James Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:11
CPC Classifications
G; G11; G11C; G11C5/00; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/077; H; H05; H05K; H05K5/00; H05K5/02; H05K5/0256
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
115 words
A memory card, comprising: a housing including an interior chamber and a top metal cover; a substrate in said chamber, said substrate carrying printed circuit leads, packaged semiconductor devices connected to selected printed circuit leads, and a connector connected to selected printed circuit leads, said packaged semiconductor devices being spaced from said top metal cover, said substrate including a plated through hole connected to circuit ground and a flexible conductor soldered in said plated through hole and extending through said housing to contact said top metal cover; and a thermal coupler between said top metal cover and said packaged semiconductor devices for coupling heat generated by said packaged semiconductor devices to said top metal cover.
Claim 2
Dependent Claim
115 words
A memory card, comprising: a housing including an interior chamber and a top metal cover; a substrate in said chamber, said substrate carrying printed circuit leads, packaged semiconductor devices connected to selected printed circuit leads, and a connector connected to selected printed circuit leads, said packaged semiconductor devices being spaced from said top metal cover, said substrate including a plated through hole connected to circuit ground and a flexible conductor soldered in said plated through hole and extending through said housing to contact said top metal cover; and a thermal coupler between said top metal cover and said packaged semiconductor devices for coupling heat generated by said packaged semiconductor devices to said top metal cover.
Claim 3
Dependent Claim
16 words
The memory card of claim 1 in which said thermal coupler comprises a thermally conductive glue.
Claim 4
Dependent Claim
17 words
The memory card of claim 2 in which said thermally conductive glue is a silicone rubber adhesive.
Claim 5
Dependent Claim
49 words
The memory card of claim 1 in which said housing includes a shell having a top part, said top part having a plurality of first apertures, said packaged semiconductor devices extending into said first apertures, said top metal cover attached to said top part to cover said first apertures.
Claim 6
Dependent Claim
29 words
The memory card of claim 4 in which said shell has a bottom part having a plurality of second apertures, said top and bottom parts joined at their margins.
Claim 7
Dependent Claim
25 words
The memory card of claim 5 in which said housing includes a bottom metal cover attached to said bottom part to cover said second apertures.
Claim 8
Dependent Claim
34 words
The memory card of claim 5 in which said top part includes a plurality of ribs which contact said substrate, said substrate carrying electrical components which extend into recessed areas located between said ribs.
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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) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |