Patent US6291894B1 successfully refreshed from Google Patents.
US6291894B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for a semiconductor package for vertical surface mounting
Assignee: Micron Technology Inc
•
Filing: 1998-08-31
•
Granted: 2001-09-18
•
Expires: 2018-08-31
Abstract
Abstract A method for packaging a semiconductor device includes connecting a plurality of wire leads to a corresponding plurality of electrical connection pads on the semiconductor device, covering at least a portion of the semiconductor device and at least a portion of each of the wire leads with an encapsulating material, and removing a portion of the encapsulating material and a portion of each of the wire leads to form a packaged semiconductor device wherein each of the wire leads has an exposed portion only at an end. The invention also includes a packaged semiconductor device having an integrated circuit device with a plurality of electrical connection pads, a plurality of wire leads coupled to the plurality of electrical connection pads, and a covering of encapsulating material covering at least a portion of the integrated circuit device and covering each of the wire leads, wherein each of the wire leads has an exposed end. The present invention contemplates wire bonding and encapsulation of individual die as well as multiple die on a single wafer.
Inventors
- 👤 Warren Farnworth
- 👤 Larry Kinsman
- 👤 Walter Moden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:19
CPC Classifications
H; H10; H10W; H10W20/00; H10W20/40; H10W20/41; H10W20/43; H10W74/00; H10W74/10; H10W74/131; H10W74/137; H10W90/00; H10W46/00; H10W72/00; H10W72/01; H10W72/071; H10W72/075; H10W72/50; H10W72/541; H10W72/5445; H10W72/834; H10W72/90; H10W72/951; H10W90/20; H10W90/231; H10W90/291; H10W90/701; H10W90/751; H10W90/752; H10W90/753; H10W90/754
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
199 words
A processed semiconductor wafer, comprising: a semiconductor wafer having first and second integrated circuit devices formed on a first surface of the wafer; a first plurality of contact pads associated with the first integrated circuit device and a second plurality of contact pads associated with the second integrated circuit device; a plurality of wire leads coupled between the first and second pluralities of contact pads; a covering of encapsulating material substantially covering at least the first and second integrated circuit devices, covering the first and second pluralities of contact pads, and covering the wire leads coupled between the first and second integrated circuit devices; and a scribe line between the first plurality of contact pads and the second plurality of contact pads, the scribe line extending orthogonally to the wire leads and defining a boundary along which the first integrated circuit device and the second integrated circuit device are to be separated, whereby, upon separation of the first and second integrated circuit devices, each of the first and second integrated circuit devices includes a plurality of exposed ends of wire leads for electrical contact along only an edge surface, the exposed ends being substantially flush with the edge surface.
Claim 2
Dependent Claim
199 words
A processed semiconductor wafer, comprising: a semiconductor wafer having first and second integrated circuit devices formed on a first surface of the wafer; a first plurality of contact pads associated with the first integrated circuit device and a second plurality of contact pads associated with the second integrated circuit device; a plurality of wire leads coupled between the first and second pluralities of contact pads; a covering of encapsulating material substantially covering at least the first and second integrated circuit devices, covering the first and second pluralities of contact pads, and covering the wire leads coupled between the first and second integrated circuit devices; and a scribe line between the first plurality of contact pads and the second plurality of contact pads, the scribe line extending orthogonally to the wire leads and defining a boundary along which the first integrated circuit device and the second integrated circuit device are to be separated, whereby, upon separation of the first and second integrated circuit devices, each of the first and second integrated circuit devices includes a plurality of exposed ends of wire leads for electrical contact along only an edge surface, the exposed ends being substantially flush with the edge surface.
Claim 3
Dependent Claim
23 words
The wafer of claim 1 , wherein the covering of encapsulating material is deposited on at least two surfaces of the semiconductor wafer.
Claim 4
Dependent Claim
44 words
The wafer of claim 1 , further comprising: at least four integrated circuit devices formed on the first surface of the semiconductor wafer; and additional pluralities of wire leads, each additional plurality of wire leads being coupled between pairs of the integrated circuit devices.
Claim 5
Dependent Claim
26 words
The wafer of claim 3 , wherein the covering of encapsulating material substantially covers all pairs of the integrated circuit devices having wire leads coupled thereto.
Claim 6
Dependent Claim
67 words
The processed semiconductor wafer of claim 1 , wherein the first plurality of contact pads are located proximate a first edge of the first integrated circuit device, said first edge being proximate the second integrated circuit device, and wherein the second plurality of contacts pads are located proximate a second edge of the second integrated circuit device, said second edge being proximate the first integrated circuit device.
References Cited (Backward Citations)
US4446475A
Cited
US5530286A
Cited
US5583375A
Cited
US5126286A
Cited
US5360992A
Cited
US5824569A
Cited
US5362679A
Cited
US5517754A
Cited
US5814894A
Cited
US5677566A
Cited
US5646067A
Cited
US5731222A
Cited
US5910687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-09-17 | 2005-03-19 | 2005-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-09-17 | 2009-03-19 | 2009-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-09-17 | 2013-03-19 | 2013-09-18 | $7700.00 | Window Closed / Lapsed |