US6222265B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of constructing stacked packages
Assignee: Micron Technology Inc
•
Filing: 1999-12-17
•
Granted: 2001-04-24
•
Expires: 2019-12-17
Abstract
Abstract A semiconductor package comprising multiple stacked substrates having flip chips attached to the substrates with chip-on-board assembly techniques to achieve dense packaging. The substrates are preferably stacked atop one another by electric connections which are column-like structures. The electric connections achieve electric communication between the stacked substrates, must be of sufficient height to give clearance for the components mounted on the substrates, and should preferably be sufficiently strong enough to give support between the stacked substrates.
Inventors
- 👤 Salman Akram
- 👤 Jerry M. Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:37
CPC Classifications
H; H10; H10W; H10W90/00; H05; H05K; H05K1/00; H05K1/02; H05K1/14; H05K1/144; H10W72/00; H10W72/50; H10W72/551; H10W72/552; H10W72/5522; H10W72/851; H10W72/874; H10W72/884; H10W74/00; H10W74/10; H10W74/15; H10W90/701; H10W90/721; H10W90/724; H10W90/731; H10W90/734; H10W90/751; H10W90/754; Y; Y10; Y10S; Y10S438/00; Y10S438/928; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/4913; Y10T29/49144
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
420 words
A semiconductor assembly, comprising: a base substrate having a first surface including a plurality of bond pads; a first stacked substrate having a first surface and a second surface, at least one of said first surface and second surface of said first stacked substrate including a plurality of bond pads; a first semiconductor die disposed on said first surface of said first stacked substrate, said first semiconductor die having an active surface, a second surface, and a plurality of bond pads located on the active surface; a second semiconductor die having a first surface facing said first surface of said base substrate, said first surface having a plurality of bond pads located thereon, said second semiconductor die disposed on said second surface of said first stacked substrate; at least one first intercoupler connecting said at least one of said plurality bond pads of said first surface of said first stacked substrate and said plurality of bond pads on said second surface of said first stacked substrate, and at least one of said plurality of bond pads of said first semiconductor die; at least one second intercoupler connecting said base substrate and said first stacked substrate, said at least one second intercoupler positioning said first stacked substrate substantially parallel to said base substrate; a second stacked substrate having a first surface including a plurality of bond pads and having a second surface including a plurality of bond pads; at third semiconductor die disposed on said first surface of said second stacked substrate, said third semiconductor die having a plurality of bond pads located thereon; a fourth semiconductor die disposed on said second surface of said second stacked substrate, said fourth semiconductor die having a plurality of bond pads located thereon; at least one fourth intercoupler connecting said at least one of said plurality of bond pads on the first surface of said second stacked substrate and said plurality of bond pads of said second surface of said second stacked substrate, and at least one of said plurality of bond pads of said fourth semiconductor die; and at least one fifth intercoupler connecting said second stacked substrate and one of said first surface of said first stacked substrate, said second surface of said first stacked substrate, and said first surface of said base substrate, said at least one fifth intercoupler separating one of said second stacked substrate from said first surface of said first stacked substrate, said second surface of said first stacked substrate, or said first surface of said base substrate.
Claim 2
Dependent Claim
420 words
A semiconductor assembly, comprising: a base substrate having a first surface including a plurality of bond pads; a first stacked substrate having a first surface and a second surface, at least one of said first surface and second surface of said first stacked substrate including a plurality of bond pads; a first semiconductor die disposed on said first surface of said first stacked substrate, said first semiconductor die having an active surface, a second surface, and a plurality of bond pads located on the active surface; a second semiconductor die having a first surface facing said first surface of said base substrate, said first surface having a plurality of bond pads located thereon, said second semiconductor die disposed on said second surface of said first stacked substrate; at least one first intercoupler connecting said at least one of said plurality bond pads of said first surface of said first stacked substrate and said plurality of bond pads on said second surface of said first stacked substrate, and at least one of said plurality of bond pads of said first semiconductor die; at least one second intercoupler connecting said base substrate and said first stacked substrate, said at least one second intercoupler positioning said first stacked substrate substantially parallel to said base substrate; a second stacked substrate having a first surface including a plurality of bond pads and having a second surface including a plurality of bond pads; at third semiconductor die disposed on said first surface of said second stacked substrate, said third semiconductor die having a plurality of bond pads located thereon; a fourth semiconductor die disposed on said second surface of said second stacked substrate, said fourth semiconductor die having a plurality of bond pads located thereon; at least one fourth intercoupler connecting said at least one of said plurality of bond pads on the first surface of said second stacked substrate and said plurality of bond pads of said second surface of said second stacked substrate, and at least one of said plurality of bond pads of said fourth semiconductor die; and at least one fifth intercoupler connecting said second stacked substrate and one of said first surface of said first stacked substrate, said second surface of said first stacked substrate, and said first surface of said base substrate, said at least one fifth intercoupler separating one of said second stacked substrate from said first surface of said first stacked substrate, said second surface of said first stacked substrate, or said first surface of said base substrate.
Claim 3
Dependent Claim
58 words
The semiconductor assembly of claim 1 , wherein said at least one second intercoupler is disposed intermediate at least one of said plurality of bond pads of said first stacked substrate and said plurality bond pads of said second surface of first stacked substrate, and at least one of said plurality of bond pads of said base substrate.
Claim 4
Dependent Claim
48 words
The semiconductor assembly of claim 1 , wherein said at least one first intercoupler connects at least one bond pad of the plurality of bond pads of said second semiconductor die and at least one bond pad of the plurality of bond pads of said first semiconductor die.
Claim 5
Dependent Claim
27 words
The semiconductor assembly of claim 1 , wherein said first semiconductor die is located on and electrically connected to said first surface of said first stacked substrate.
Claim 6
Dependent Claim
42 words
The semiconductor assembly of claim 1 , wherein said second surface of said first stacked substrate includes a plurality of bond pads; and wherein said first semiconductor die is located on and connected to said second surface of said first stacked substrate.
Claim 7
Dependent Claim
31 words
The semiconductor assembly of claim 1 , wherein said at least one first intercoupler includes one of solder, conductive adhesives, Z-axis conductive material, flex-contacts, spring contacts, wire bonds, and TAB tape.
Claim 8
Dependent Claim
24 words
The semiconductor assembly of claim 1 , wherein said base substrate further comprises a second surface having a plurality of bond pads located thereon.
Claim 9
Dependent Claim
31 words
The semiconductor assembly of claim 7 , further comprising connections attached to said plurality of bond pads of said second surface of said base substrate for connection with external electrical circuitry.
Claim 10
Dependent Claim
47 words
The semiconductor assembly of claim 8 , further comprising a plurality of trace leads located on said base substrate connecting said plurality of bond pads of said first surface of said base substrate and said plurality of bond pads of said second surface of said base substrate.
Claim 11
Dependent Claim
67 words
The semiconductor assembly of claim 1 , further comprising: a base semiconductor die having a plurality of bond pads and disposed on said base substrate first surface; and at least one third intercoupler connecting said at least one of said plurality of bond pads of said first surface of said base substrate and at least one of said plurality of bond pads of said first semiconductor die.
Claim 12
Dependent Claim
820 words
A semiconductor assembly comprising: a base substrate having a first surface including a plurality of bonds pads thereon, a second surface including a plurality of bond pads thereon, and a plurality of traces, at least one trace of said plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said base substrate to at least one bond pad of said plurality of bond pads on said second surface of said base substrate; a first stacked substrate having a first surface including a plurality of bond pads thereon, a second surface including a plurality of bond pads thereon, a first plurality of traces, at least one trace of said first plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said first stacked substrate to at least one bond pad of said plurality of bond pads on said second surface of said first stacked substrate, and a second plurality of traces, at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said first stacked substrate; a first semiconductor die disposed on said first surface of said first stacked substrate, said first semiconductor die connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said first stacked substrate; a second stacked substrate having a first surface including a plurality of bond pads thereon, a second surface including a plurality of bond pads thereon, a first plurality of traces, at least one trace of said first plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said second stacked substrate to at least one bond pad of said plurality of bond pads on said second surface of said second stacked substrate, and a second plurality of traces, at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said second stacked substrate; a second semiconductor die disposed on said first surface of said second stacked substrate, said second semiconductor die connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said second stacked substrate; a third semiconductor die disposed on said second surface of said second stacked substrate; a first plurality of connections connecting said base substrate and said first stacked substrate, at least one connection of said first plurality of connections connecting said at least one bond pad of said plurality of bond pads on said first surface of said base substrate to at least one bond pad of the plurality of bond pads on the first surface of said first stacked substrate; a second plurality of connections connecting said second stacked substrate and said first stacked substrate, at least one connection of said second plurality of connections connecting said at least one bond pad of said plurality of bond pads on said first surface of said second stacked substrate to at least one bond pad of the plurality of bond pads on the second surface of said first stacked substrate; a third stacked substrate having a first surface including a plurality of bond pads thereon, a second surface including a plurality of bond pads thereon, a first plurality of traces, at least one trace of said first plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said third stacked substrate to at least one bond pad of said plurality of bond pads on said second surface of said third stacked substrate, and a second plurality of traces, at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said third stacked substrate; a fourth semiconductor die disposed on said second surface of said third stacked substrate; a fifth semiconductor die disposed on said first surface of said third stacked substrate, said fifth semiconductor die connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said third stacked substrate; and a third plurality of connections connecting said third stacked substrate and said second stacked substrate, at least one connection of said third plurality of connections connecting said at least one bond pad of said plurality of bond pads on said first surface of said third stacked substrate to at least one bond pad of the plurality of bond pads on the first surface of said second stacked substrate.
Claim 13
Dependent Claim
820 words
A semiconductor assembly comprising: a base substrate having a first surface including a plurality of bonds pads thereon, a second surface including a plurality of bond pads thereon, and a plurality of traces, at least one trace of said plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said base substrate to at least one bond pad of said plurality of bond pads on said second surface of said base substrate; a first stacked substrate having a first surface including a plurality of bond pads thereon, a second surface including a plurality of bond pads thereon, a first plurality of traces, at least one trace of said first plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said first stacked substrate to at least one bond pad of said plurality of bond pads on said second surface of said first stacked substrate, and a second plurality of traces, at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said first stacked substrate; a first semiconductor die disposed on said first surface of said first stacked substrate, said first semiconductor die connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said first stacked substrate; a second stacked substrate having a first surface including a plurality of bond pads thereon, a second surface including a plurality of bond pads thereon, a first plurality of traces, at least one trace of said first plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said second stacked substrate to at least one bond pad of said plurality of bond pads on said second surface of said second stacked substrate, and a second plurality of traces, at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said second stacked substrate; a second semiconductor die disposed on said first surface of said second stacked substrate, said second semiconductor die connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said second stacked substrate; a third semiconductor die disposed on said second surface of said second stacked substrate; a first plurality of connections connecting said base substrate and said first stacked substrate, at least one connection of said first plurality of connections connecting said at least one bond pad of said plurality of bond pads on said first surface of said base substrate to at least one bond pad of the plurality of bond pads on the first surface of said first stacked substrate; a second plurality of connections connecting said second stacked substrate and said first stacked substrate, at least one connection of said second plurality of connections connecting said at least one bond pad of said plurality of bond pads on said first surface of said second stacked substrate to at least one bond pad of the plurality of bond pads on the second surface of said first stacked substrate; a third stacked substrate having a first surface including a plurality of bond pads thereon, a second surface including a plurality of bond pads thereon, a first plurality of traces, at least one trace of said first plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said third stacked substrate to at least one bond pad of said plurality of bond pads on said second surface of said third stacked substrate, and a second plurality of traces, at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said third stacked substrate; a fourth semiconductor die disposed on said second surface of said third stacked substrate; a fifth semiconductor die disposed on said first surface of said third stacked substrate, said fifth semiconductor die connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said third stacked substrate; and a third plurality of connections connecting said third stacked substrate and said second stacked substrate, at least one connection of said third plurality of connections connecting said at least one bond pad of said plurality of bond pads on said first surface of said third stacked substrate to at least one bond pad of the plurality of bond pads on the first surface of said second stacked substrate.
Claim 14
Dependent Claim
27 words
The semiconductor assembly of claim 11 , wherein said first plurality of connections connecting said base substrate and said first stacked substrate support said first stacked substrate.
Claim 15
Dependent Claim
29 words
The semiconductor assembly of claim 11 , wherein said second plurality of connections extending connecting said first stacked substrate and said second stacked substrate support said second stacked substrate.
Claim 16
Dependent Claim
28 words
The semiconductor assembly of claim 11 , wherein said first plurality of connections includes solder, conductive adhesives, Z-axis conductive material, flex-contacts, spring contacts, wire bonds, and TAB tape.
Claim 17
Dependent Claim
28 words
The semiconductor assembly of claim 11 , wherein said second plurality of connections includes solder, conductive adhesives, Z-axis conductive material, flex-contacts, spring contacts, wire bonds, and TAB tape.
Claim 18
Dependent Claim
51 words
The semiconductor assembly of claim 11 , said assembly further comprising: a fourth plurality of connections, at least one connection of said third plurality of connections connecting said at least one bond pad of said plurality of bond pads on said second surface of said base substrate to external electrical circuitry.
Claim 19
Dependent Claim
67 words
The semiconductor assembly of claim 11 , wherein said first semiconductor die disposed on said first surface of said first stacked substrate is connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said first stacked substrate through flip chip attachment, wirebonding, TAB tape, or a combination thereof.
Claim 20
Dependent Claim
67 words
The semiconductor assembly of claim 11 , wherein said second semiconductor die disposed on said first surface of said second stacked substrate is connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said second stacked substrate through flip chip attachment, wirebonding, TAB tape, or a combination thereof.
Claim 21
Dependent Claim
45 words
The semiconductor assembly of claim 11 , wherein said third semiconductor die disposed on said second surface of said second stacked substrate is connected to at least one bond pad of said plurality of bond pads on said second surface of said second stacked substrate.
Claim 22
Dependent Claim
45 words
The semiconductor assembly of claim 11 , wherein said third semiconductor die disposed on said second surface of said second stacked substrate is connected to at least one bond pad of said plurality of bond pads on said first surface of said second stacked substrate.
Claim 23
Dependent Claim
84 words
The semiconductor assembly of claim 11 , wherein said second semiconductor die disposed on said first surface of said second stacked substrate is connected to at least one bond pad of said plurality of bond pads on said second surface of said second stacked substrate and wherein said third semiconductor die disposed on said second surface of said second stacked substrate is connected to at least one bond pad of said plurality of bond pads on said second surface of said second stacked substrate.
Claim 24
Dependent Claim
282 words
The semiconductor assembly of claim 11 , further comprising: a fourth stacked substrate having a first surface including a plurality of bond pads thereon, a second surface including a plurality of bond pads thereon, a first plurality of traces, at least one trace of said first plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said fourth stacked substrate to at least one bond pad of said plurality of bond pads on said second surface of said fourth stacked substrate, and a second plurality of traces, at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said fourth stacked substrate, said fourth stacked substrate located above said second stacked substrate, said fourth stacked substrate having a size less than the base substrate, the first stacked substrate, the second stacked substrate, and the third stacked substrate; a sixth semiconductor die disposed on said first surface of said fourth stacked substrate, said sixth semiconductor die connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said fourth stacked substrate; and a fourth plurality of connections connecting said fourth stacked substrate and said second stacked substrate, at least one connection of said fourth plurality of connections connecting said at least one bond pad of said plurality of bond pads on said first surface of said fourth stacked substrate to at least one bond pad of the plurality of bond pads on the first surface of said second stacked substrate.
Claim 25
Dependent Claim
846 words
A semiconductor assembly comprising: a base substrate having a first surface including a plurality of bonds pads thereon, a second surface including a plurality of bond pads thereon, and a plurality of traces, at least one trace of said plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said base substrate to at least one bond pad of said plurality of bond pads on said second surface of said base substrate; a first stacked substrate having a first surface including a plurality of bond pads thereon, a second surface including a plurality of bond pads thereon, a first plurality of traces, at least one trace of said first plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said first stacked substrate to at least one bond pad of said plurality of bond pads on said second surface of said first stacked substrate, and a second plurality of traces, at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said first stacked substrate; a plurality of first semiconductor dice disposed on said first surface of said first stacked substrate, each die of said plurality of first semiconductor dice connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said first stacked substrate; a second stacked substrate having a first surface including a plurality of bond pads thereon, a second surface including a plurality of bond pads thereon, a first plurality of traces, at least one trace of said first plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said second stacked substrate to at least one bond pad of said plurality of bond pads on said second surface of said second stacked substrate, and a second plurality of traces, at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said second stacked substrate; a plurality of second semiconductor dice disposed on said first surface of said second stacked substrate, each die of said plurality of second semiconductor dice connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said second stacked substrate; a plurality of third semiconductor dice disposed on said second surface of said second stacked substrate; a first plurality of connections connecting said base substrate and said first stacked substrate, at least one connection of said first plurality of connections connecting said at least one bond pad of said plurality of bond pads on said first surface of said base substrate to at least one bond pad of the plurality of bond pads on the first surface of said first stacked substrate; a second plurality of connections connecting said second stacked substrate and said first stacked substrate, at least one connection of said second plurality of connections connecting said at least one bond pad of said plurality of bond pads on said first surface of said second stacked substrate to at least one bond pad of the plurality of bond pads on the second surface of said first stacked substrate; a third stacked substrate having a first surface including a plurality of bond pads thereon, a second surface including a plurality of bond pads thereon, a first plurality of traces, at least one trace of said first plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said third stacked substrate to at least one bond pad of said plurality of bond pads on said second surface of said third stacked substrate, and a second plurality of traces, at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said third stacked substrate; a plurality of fourth semiconductor dice disposed on said first surface of said third stacked substrate, each die of said third plurality of third semiconductor dice connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said third stacked substrate; a plurality of fifth semiconductor dice disposed on said second surface of said third stacked substrate; and a third plurality of connections connecting said third stacked substrate and said second stacked substrate, at least one connection of said third plurality of connections connecting said at least one bond pad of said plurality of bond pads on said first surface of said third stacked substrate to at least one bond pad of the plurality of bond pads on the first surface of said second stacked substrate.
Claim 26
Dependent Claim
846 words
A semiconductor assembly comprising: a base substrate having a first surface including a plurality of bonds pads thereon, a second surface including a plurality of bond pads thereon, and a plurality of traces, at least one trace of said plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said base substrate to at least one bond pad of said plurality of bond pads on said second surface of said base substrate; a first stacked substrate having a first surface including a plurality of bond pads thereon, a second surface including a plurality of bond pads thereon, a first plurality of traces, at least one trace of said first plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said first stacked substrate to at least one bond pad of said plurality of bond pads on said second surface of said first stacked substrate, and a second plurality of traces, at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said first stacked substrate; a plurality of first semiconductor dice disposed on said first surface of said first stacked substrate, each die of said plurality of first semiconductor dice connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said first stacked substrate; a second stacked substrate having a first surface including a plurality of bond pads thereon, a second surface including a plurality of bond pads thereon, a first plurality of traces, at least one trace of said first plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said second stacked substrate to at least one bond pad of said plurality of bond pads on said second surface of said second stacked substrate, and a second plurality of traces, at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said second stacked substrate; a plurality of second semiconductor dice disposed on said first surface of said second stacked substrate, each die of said plurality of second semiconductor dice connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said second stacked substrate; a plurality of third semiconductor dice disposed on said second surface of said second stacked substrate; a first plurality of connections connecting said base substrate and said first stacked substrate, at least one connection of said first plurality of connections connecting said at least one bond pad of said plurality of bond pads on said first surface of said base substrate to at least one bond pad of the plurality of bond pads on the first surface of said first stacked substrate; a second plurality of connections connecting said second stacked substrate and said first stacked substrate, at least one connection of said second plurality of connections connecting said at least one bond pad of said plurality of bond pads on said first surface of said second stacked substrate to at least one bond pad of the plurality of bond pads on the second surface of said first stacked substrate; a third stacked substrate having a first surface including a plurality of bond pads thereon, a second surface including a plurality of bond pads thereon, a first plurality of traces, at least one trace of said first plurality of traces connecting at least one bond pad of said plurality of bond pads on said first surface of said third stacked substrate to at least one bond pad of said plurality of bond pads on said second surface of said third stacked substrate, and a second plurality of traces, at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said third stacked substrate; a plurality of fourth semiconductor dice disposed on said first surface of said third stacked substrate, each die of said third plurality of third semiconductor dice connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said third stacked substrate; a plurality of fifth semiconductor dice disposed on said second surface of said third stacked substrate; and a third plurality of connections connecting said third stacked substrate and said second stacked substrate, at least one connection of said third plurality of connections connecting said at least one bond pad of said plurality of bond pads on said first surface of said third stacked substrate to at least one bond pad of the plurality of bond pads on the first surface of said second stacked substrate.
Claim 27
Dependent Claim
27 words
The semiconductor assembly of claim 23 , wherein said first plurality of connections connecting said base substrate and said first stacked substrate support said first stacked substrate.
Claim 28
Dependent Claim
28 words
The semiconductor assembly of claim 23 , wherein said second plurality of connections connecting said first stacked substrate and said second stacked substrate support said second stacked substrate.
Claim 29
Dependent Claim
28 words
The semiconductor assembly of claim 23 , wherein said first plurality of connections includes solder, conductive adhesives, Z-axis conductive material, flex-contacts, spring contacts, wire bonds, and TAB tape.
Claim 30
Dependent Claim
28 words
The semiconductor assembly of claim 23 , wherein said second plurality of connections includes solder, conductive adhesives, Z-axis conductive material, flex-contacts, spring contacts, wire bonds, and TAB tape.
Claim 31
Dependent Claim
51 words
The semiconductor assembly of claim 23 , said assembly further comprising: a third plurality of connections, at least one connection of said third plurality of connections connecting said at least one bond pad of said plurality of bond pads on said second surface of said base substrate to external electrical circuitry.
Claim 32
Dependent Claim
74 words
The semiconductor assembly of claim 23 , wherein each die of said first plurality of semiconductor dice disposed on said first surface of said first stacked substrate is connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said first stacked substrate through one of flip chip attachment, wirebonding, TAB tape, or a combination thereof.
Claim 33
Dependent Claim
75 words
The semiconductor assembly of claim 23 , wherein said each die of said second plurality of semiconductor dice disposed on said first surface of said second stacked substrate is connected to said at least one trace of said second plurality of traces connected to another bond pad of said plurality of bond pads on said first surface of said second stacked substrate through one of flip chip attachment, wirebonding, TAB tape, or a combination thereof.
Claim 34
Dependent Claim
49 words
The semiconductor assembly of claim 23 , further comprising: a second semiconductor die disposed on said second surface of said first stacked substrate, said second semiconductor die connected to at least one bond pad of said plurality of bond pads on said second surface of said first stacked substrate.
Claim 35
Dependent Claim
90 words
The semiconductor assembly of claim 23 , further comprising: a second semiconductor die disposed on said second surface of said first stacked substrate, said second semiconductor die connected to at least one bond pad of said plurality of bond pads on said second surface of said first stacked substrate; and a third semiconductor die disposed on said second surface of said second stacked substrate, said third semiconductor die connected to at least one bond pad of said plurality of bond pads on said second surface of said second stacked substrate.
References Cited (Backward Citations)
US5099306A
Cited
US4954878A
Cited
US5109320A
Cited
US5252857A
Cited
US5403784A
Cited
US5128831A
Cited
US5222014A
Cited
US5300801A
Cited
US5495398A
Cited
US5422435A
Cited
US5496775A
Cited
US5535101A
Cited
US5508565A
Cited
US5513076A
Cited
US5291061A
Cited
US5705858A
Cited
US5323060A
Cited
US5498902A
Cited
US5494841A
Cited
US5594275A
Cited
US5473814A
Cited
US5477082A
Cited
US5506756A
Cited
US5512765A
Cited
US5466627A
Cited
US5481134A
Cited
US5434745A
Cited
US5498905A
Cited
US5512780A
Cited
US5715144A
Cited
US5728606A
Cited
US5729440A
Cited
US5639696A
Cited
US6051878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-04-23 | 2004-10-23 | 2005-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-04-23 | 2008-10-23 | 2009-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-04-23 | 2012-10-23 | 2013-04-24 | $7700.00 | Window Closed / Lapsed |