US5589420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for a hybrid leadframe-over-chip semiconductor package
Assignee: Texas Instruments Inc
•
Filing: 1995-06-07
•
Granted: 1996-12-31
•
Expires: 2015-06-07
Abstract
Abstract A hybrid leadframe-over-chip (LOC) semiconductor package is generally comprised of bonding finger elements located over a surface of a semiconductor component and electrically coupled, by means of conducting wires, to the bonding pads located on the surface. In addition, at least one bonding finger is located outside the boundary of the surface of the semiconductor component. Each bonding finger located outside the boundary is coupled, by a conducting wire, to a bonding pad positioned within the boundary of the semiconductor component. In this manner, for a given semiconductor component size and for given routing and lead dimension constraints, a larger number of conducting paths can be provided between the leadframe and the semiconductor component.
Inventors
- 👤 Ernest J. Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:35
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/40; H10W70/411; H10W70/415; H10W72/00; H10W72/071; H10W72/075; H10W72/07551; H10W72/07554; H10W72/50; H10W72/541; H10W72/5445; H10W72/5449; H10W72/547; H10W72/59; H10W72/851; H10W72/853; H10W72/865; H10W72/90; H10W72/931; H10W72/932; H10W72/941; H10W72/944; H10W72/9445; H10W72/951; H10W90/00; H10W90/701; H10W90/731; H10W90/736; H10W90/751; H10W90/756
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
106 words
A method for electrically coupling bonding pads of a semiconductor component to a leadframe with a conducting wire, wherein said leadframe is positioned in a leadframe-over-chip with respect to said semiconductor component, wherein said bonding pads form at least one row in a center portion of said semiconductor component generally parallel to an edge of said semiconductor component, said method comprising the steps of: locating a bonding finger of a leadframe conducting lead in an off-chip position; bonding a first end of said conducting wire to said off-chip bonding finger; and bonding a second end of said conducting wire to a selected semiconductor component bonding pad.
Claim 2
Independent Claim
106 words
A method for electrically coupling bonding pads of a semiconductor component to a leadframe with a conducting wire, wherein said leadframe is positioned in a leadframe-over-chip with respect to said semiconductor component, wherein said bonding pads form at least one row in a center portion of said semiconductor component generally parallel to an edge of said semiconductor component, said method comprising the steps of: locating a bonding finger of a leadframe conducting lead in an off-chip position; bonding a first end of said conducting wire to said off-chip bonding finger; and bonding a second end of said conducting wire to a selected semiconductor component bonding pad.
Claim 3
Dependent Claim
41 words
The method of claim 1 wherein said bonding a second end step includes the step of bonding a second end of said conducting wire to a selected bonding pad near an end of said at least one row of bonding pads.
Claim 4
Dependent Claim
43 words
The method of claim 1 wherein said bonding a second end step includes the steps of: positioning at least one bonding pad proximate said edge of said semiconductor component; and bonding a second end of said conducting wire to said one bonding pad.
Claim 5
Dependent Claim
59 words
The method of claim 1 wherein said bonding second end step includes the steps of: positioning a plurality of bonding pads in a row perpendicular to said at least one row and proximate to a boundary of said semiconductor component; and bonding said second end of said conducting wire to a on of said second plurality of bonding pads.
References Cited (Backward Citations)
US5234866A
Cited
US5096852A
Cited
US5200364A
Cited
US5258330A
Cited
US5086018A
Cited
US5409866A
Cited
US5395800A
Cited
US5308797A
Cited
US5286679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-12-31 | 2000-07-01 | 2000-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-31 | 2004-07-01 | 2004-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-31 | 2008-07-01 | 2008-12-31 | $7700.00 | Window Closed / Lapsed |