Patent US5986894A successfully refreshed from Google Patents.
US5986894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microelectronic component carrier and method of its manufacture
Assignee: Pulse Electronics Inc
•
Filing: 1998-03-19
•
Granted: 1999-11-16
•
Expires: 2018-03-19
Abstract
Abstract A microelectronic component carrier package and method of its manufacture. A non-conducting component carrier having vertical risers and guide channels permits the rapid and accurate routing of microelectronic component leads with respect to the leadframe. Specially shaped perforations in the leadframe adjacent to and aligned with the guide channels receive the leads, strip away the necessary amount of insulation, and sever the leads to the proper length in one manufacturing process step. The leads are joined to the leadframe by an interference fit, conventional bonding technique (such as solder or thermal compression bonding), or other techniques. The perforations further provide for stress relief of the leads in the assembled package, and permit the joints between the leadframe and leads to reside outside of the package, thereby minimizing the overall volume of the package. The perforations may also be used as masks for laser energy used to strip insulation from the leads in the vicinity of the perforations.
Inventors
- 👤 James D. Lint
- 👤 Nanci Vogtli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:53
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/10; H01F17/00; H01F17/04; H01F17/06; H01F17/062; H01F27/00; H01F27/02; H01F27/027; H05; H05K; H05K3/00; H05K3/30; H05K3/301; H10; H10W; H10W78/00; H01F27/28; H01F27/29; H01F5/00; H01F5/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
68 words
A component carrier, said carrier comprising: a base for receiving one or more components; a plurality of guide channels located in proximity to said base, said guide channels configured to route one or more electrical leads; and a lead frame assembly having one or more receiving mechanisms for measuring and cutting the one or more electrical leads therein, said receiving mechanisms positioned in proximity to said guide channels.
Claim 2
Dependent Claim
68 words
A component carrier, said carrier comprising: a base for receiving one or more components; a plurality of guide channels located in proximity to said base, said guide channels configured to route one or more electrical leads; and a lead frame assembly having one or more receiving mechanisms for measuring and cutting the one or more electrical leads therein, said receiving mechanisms positioned in proximity to said guide channels.
Claim 3
Dependent Claim
22 words
The component carrier as defined in claim 1, wherein the one or more receiving mechanisms are perforations that are shaped as keyholes.
Claim 4
Dependent Claim
34 words
The component carrier as defined in claim 2, wherein circular portions of the keyhole perforations are positioned to be the most proximal part of the keyhole perforations with respect to an adjacent guide channel.
Claim 5
Dependent Claim
18 words
The component carrier as defined in claim 1, further comprising a component which is positioned on the base.
Claim 6
Dependent Claim
18 words
The component carrier as defined in claim 4, further comprising a plurality of leads connected to the component.
Claim 7
Dependent Claim
31 words
The component carrier as defined in claim 5, wherein at least one of the plurality of leads is connected to the lead frame assembly proximally to one of the receiving mechanisms.
Claim 8
Dependent Claim
25 words
The component carrier as defined in claim 5, wherein one of the plurality of leads is connected to the lead frame assembly by eutectic soldering.
Claim 9
Dependent Claim
24 words
The component carrier as defined in claim 5, wherein one of the plurality of leads is connected to the lead frame assembly by adhesives.
Claim 10
Dependent Claim
24 words
The component carrier as defined in claim 5, wherein one of the plurality of leads is connected to the lead frame by compression bonding.
Claim 11
Dependent Claim
17 words
The component carrier as defined in claim 1, wherein the component carrier is integrated into a computer.
Claim 12
Dependent Claim
17 words
The component carrier as defined in claim 1, wherein the carrier is integrated into a peripheral device.
Claim 13
Dependent Claim
19 words
The component carrier as defined in claim 1, wherein the component carrier is integrated into a printed circuit board.
Claim 14
Dependent Claim
22 words
The component carrier as defined in claim 1, further comprising lead alignment slots on the leadframe for positioning leads across the perforations.
Claim 15
Dependent Claim
15 words
The component carrier as defined in claim 1, wherein the base is made of polyethylene.
Claim 16
Dependent Claim
16 words
The component carrier as defined in claim 1, wherein the base is made of a fluorpolymer.
Claim 17
Dependent Claim
96 words
A component carrier, said carrier comprising: a base for receiving one or more components; a plurality of guide channels located in proximity to said base, said guide channels permitting the routing of one or more electrical leads therein; and a lead frame assembly having one or more keyhole shaped perforations therein, said perforations positioned in proximity to said guide channels wherein circular portions of the keyhole perforations are positioned to be the most proximal part of the keyhole perforations to an adjacent guide channel, said perforations further being sized so as to frictionally receive said leads.
Claim 18
Dependent Claim
96 words
A component carrier, said carrier comprising: a base for receiving one or more components; a plurality of guide channels located in proximity to said base, said guide channels permitting the routing of one or more electrical leads therein; and a lead frame assembly having one or more keyhole shaped perforations therein, said perforations positioned in proximity to said guide channels wherein circular portions of the keyhole perforations are positioned to be the most proximal part of the keyhole perforations to an adjacent guide channel, said perforations further being sized so as to frictionally receive said leads.
References Cited (Backward Citations)
US3287795A
Cited
US3370203A
Cited
US3469684A
Cited
US4698660A
Cited
US4521828A
Cited
US4916518A
Cited
US4803544A
Cited
US4821152A
Cited
US4906802A
Cited
US5162894A
Cited
US5200364A
Cited
US5042146A
Cited
US5185653A
Cited
US5270262A
Cited
US5263242A
Cited
US5402321A
Cited
US5343106A
Cited
US5375320A
Cited
US5345670A
Cited
US5451715A
Cited
US5483024A
Cited
US5455741A
Cited
US5541451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-11-15 | 2003-05-17 | 2003-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-15 | 2007-05-17 | 2007-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-15 | 2011-05-17 | 2011-11-16 | $7700.00 | Window Closed / Lapsed |