US6229158B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stacked die integrated circuit device
Assignee: Intel Corp
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Filing: 2000-04-03
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Granted: 2001-05-08
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Expires: 2020-04-03
Abstract
Abstract A compound die may be formed of two dies each having face and back sides, said dies being connected with said dies in face to face alignment. A radiation communication system may be used to assist in aligning the dies and in providing communications between the two dies. In this way, a composite structure may be produced which has advanced capabilities, a small footprint, and low impedance.
Inventors
- 👤 Ronald K. Minemier
- 👤 Jon M. Dhuse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:33
CPC Classifications
H; H10; H10W; H10W90/00; H01; H01S; H01S5/00; H01S5/02; H10F; H10F55/00; H10F55/20; H10F55/25; H10W46/00; H10W72/00; H10W72/851; H10W90/20; H10W90/293; G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4219; G02B6/4228; G02B6/4232; G02B6/43; H10W46/601; H10W72/071; H10W72/072; H10W72/07221; H10W72/07223; H10W72/075; H10W72/90; H10W72/951; H10W90/701; H10W90/721; H10W90/722
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
78 words
An integrated circuit device comprising: a pair of dies each having a face and a back, said dies being coupled together with their faces opposed to each other; one of said dies having a radiation emitter and the other said dies including a radiation detector arranged to detect radiation emitted by said emitter; and each of said dies including a heat activated coupling element so that when said dies are coupled together and heated, the coupling elements bond.
Claim 2
Dependent Claim
78 words
An integrated circuit device comprising: a pair of dies each having a face and a back, said dies being coupled together with their faces opposed to each other; one of said dies having a radiation emitter and the other said dies including a radiation detector arranged to detect radiation emitted by said emitter; and each of said dies including a heat activated coupling element so that when said dies are coupled together and heated, the coupling elements bond.
Claim 3
Dependent Claim
37 words
The device of claim 1 wherein one of said dies has a larger surface area than the other of said dies, the larger surface area die providing contact pads for communicating signals to said pair of dies.
Claim 4
Dependent Claim
25 words
The device of claim 1 wherein said radiation emitter emits light, and said emitter and detector are adapted to assist in aligning the two dies.
Claim 5
Dependent Claim
20 words
The device of claim 1 wherein said emitter and said detector are adapted to exchange data between the two dies.
Claim 6
Dependent Claim
20 words
The device of claim 1 wherein said emitter and said detector have mating shapes to assist in aligning said dies.
Claim 7
Dependent Claim
17 words
The device of claim 5 wherein said emitter includes a microlens shaped to mate with said detector.
Claim 8
Dependent Claim
19 words
The device of claim 1 including contacts between said dies for conveying power and ground signals between said dies.
Claim 9
Dependent Claim
15 words
The device of claim 1 wherein said dies are formed on different types of substrates.
Claim 10
Independent Claim
51 words
A method of coupling a pair of integrated circuit dies comprising: placing said dies in face to face alignment; using a light signal emitted by one of said dies to align said dies with one another; physically coupling said dies together; and enabling radiation signals to be exchanged between said dies.
Claim 11
Independent Claim
51 words
A method of coupling a pair of integrated circuit dies comprising: placing said dies in face to face alignment; using a light signal emitted by one of said dies to align said dies with one another; physically coupling said dies together; and enabling radiation signals to be exchanged between said dies.
Claim 12
Dependent Claim
17 words
The method of claim 9 wherein physically coupling said dies together includes heat bonding said dies together.
Claim 13
Dependent Claim
21 words
The method of claim 10 wherein physically coupling said dies together includes using a mass reflow to couple said dies together.
Claim 14
Dependent Claim
35 words
The method of claim 9 wherein physically coupling said dies together includes causing a light emitting element on one of said dies to physically engage a light receiving element on the other of said dies.
Claim 15
Dependent Claim
32 words
The method of claim 9 including placing a memory on one of said dies, said memory used by the other of said dies and enabling said dies to communicate through light signals.
Claim 16
Dependent Claim
24 words
The method of claim 9 further including operating a light emitter on one of said dies without turning said emitter completely on and off.
Claim 17
Dependent Claim
67 words
An integrated circuit device comprising: a pair of dies each having a face and a back, said dies being coupled together with their faces opposed to each other; and one of said dies having a radiation emitter and the other of said dies including a radiation detector to detect radiation emitted by said emitter, said emitter and detector having mating shapes to assist in aligning said dies.
Claim 18
Dependent Claim
67 words
An integrated circuit device comprising: a pair of dies each having a face and a back, said dies being coupled together with their faces opposed to each other; and one of said dies having a radiation emitter and the other of said dies including a radiation detector to detect radiation emitted by said emitter, said emitter and detector having mating shapes to assist in aligning said dies.
Claim 19
Dependent Claim
17 words
The device of claim 15 wherein said emitter includes a microlens shape to mate with said detector.
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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) | 2004-05-07 | 2004-11-06 | 2005-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-07 | 2008-11-06 | 2009-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-07 | 2012-11-06 | 2013-05-08 | $7700.00 | Window Closed / Lapsed |