US6025995A
Expired / Lapsed
US
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Integrated circuit module and method
Assignee: Ericsson Inc
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Filing: 1997-11-05
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Granted: 2000-02-15
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Expires: 2017-11-05
Abstract
Abstract An integrated circuit module is provided having a substrate, an integrated circuit on the substrate and defining an active surface remote from the substrate, and a die attached to the active surface of the integrated circuit. A layer of non-conductive material conformally coats the die and active surface of the integrated circuit, with the layer of non-conductive material having a substantially level top surface. A plurality of vias are formed in the layer of non-conductive material aligned with the die and integrated circuit, respectively. A pattern of metallization is disposed on the top surface of the layer of non-conductive material extending through the plurality of vias and selectively interconnecting the die to the integrated circuit.
Inventors
- 👤 Walter M. Marcinkiewicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:28
CPC Classifications
H; H10; H10W; H10W90/00; H10W70/00; H10W70/60; H10W70/611; H10W70/614; H10W70/099; H10W72/00; H10W72/851; H10W72/874; H10W90/10; H10W90/20; H10W90/22; H10W90/701; H10W90/731; H10W90/732; H10W90/734; H10W90/736
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
110 words
An integrated circuit module comprising: a substrate; an integrated circuit on the substrate and defining an active surface remote from the substrate; a die attached to the active surface of the integrated circuit; a layer of non-conductive material conformally coating the die and active surface of the integrated circuit, said layer of non-conductive material having a substantially level top surface; a plurality of vias formed in the layer of non-conductive material selectively aligned with the die and integrated circuit, respectively; and a pattern of metallization on the top surface of the layer of non-conductive material extending through the plurality of vias and selectively interconnecting the die to the integrated circuit.
Claim 2
Dependent Claim
110 words
An integrated circuit module comprising: a substrate; an integrated circuit on the substrate and defining an active surface remote from the substrate; a die attached to the active surface of the integrated circuit; a layer of non-conductive material conformally coating the die and active surface of the integrated circuit, said layer of non-conductive material having a substantially level top surface; a plurality of vias formed in the layer of non-conductive material selectively aligned with the die and integrated circuit, respectively; and a pattern of metallization on the top surface of the layer of non-conductive material extending through the plurality of vias and selectively interconnecting the die to the integrated circuit.
Claim 3
Dependent Claim
98 words
The integrated circuit module of claim 1, further comprising: a second layer of non-conductive material conformally coating the layer of non-conductive material, the plurality of vias and the pattern of metallization, said second layer of non-conductive material having a substantially level top surface; a second plurality of vias formed in the second layer of non-conductive material selectively aligned with the die and/or integrated circuit, respectively; and a second pattern of metallization on the top surface of the second layer of non-conductive material extending through the second plurality of vias and selectively interconnecting the die and/or the integrated circuit.
Claim 4
Dependent Claim
22 words
The integrated circuit module of claim 1, wherein the layer of non-conductive material comprises a dielectric filler material suitable for microelectronic purposes.
Claim 5
Dependent Claim
27 words
The integrated circuit module of claim 3, wherein the dielectric filler material is selected from the group consisting of thermosets, thermoplastics, Plaskon, epoxies, polyimides, polyesters and Teflons.
Claim 6
Dependent Claim
27 words
The integrated circuit module of claim 1, wherein the substrate is comprised of a non-conductive material, and wherein the integrated circuit is integrally formed on the substrate.
Claim 7
Dependent Claim
22 words
The integrated circuit module of claim 1, wherein the substrate is selected from the group consisting of ceramic, silicon, plastic and metal.
Claim 8
Dependent Claim
25 words
The integrated circuit module of claim 1, wherein the die is adhesively attached to the active surface of the integrated circuit with a non-conductive adhesive.
Claim 9
Dependent Claim
29 words
The integrated circuit module of claim 1, wherein the die is adhesively attached to the active surface of the integrated circuit at a predetermined location with a conductive adhesive.
Claim 10
Dependent Claim
43 words
The integrated circuit module of claim 1, wherein the integrated circuit comprises an integrated circuit chip having an active surface and a mounting surface opposite the active surface, and wherein the mounting surface is adhesively attached to the substrate with a non-conductive adhesive.
Claim 11
Independent Claim
129 words
A method of fabricating an integrated circuit module, said method comprising the steps of: providing an integrated circuit on a substrate, said integrated circuit having an active surface remote from the substrate; attaching at least one die to the active surface of the integrated circuit; conformally coating the at least one die and integrated circuit with a layer of non-conductive material, said layer of non-conductive material having a substantially level top surface; forming a plurality of vias in the layer of non-conductive material selectively aligned with the at least one die and integrated circuit, respectively; and forming a pattern of metallization on the top surface of the layer of non-conductive material extending through the plurality of vias and selectively interconnecting the at least one die and/or the integrated circuit.
Claim 12
Independent Claim
129 words
A method of fabricating an integrated circuit module, said method comprising the steps of: providing an integrated circuit on a substrate, said integrated circuit having an active surface remote from the substrate; attaching at least one die to the active surface of the integrated circuit; conformally coating the at least one die and integrated circuit with a layer of non-conductive material, said layer of non-conductive material having a substantially level top surface; forming a plurality of vias in the layer of non-conductive material selectively aligned with the at least one die and integrated circuit, respectively; and forming a pattern of metallization on the top surface of the layer of non-conductive material extending through the plurality of vias and selectively interconnecting the at least one die and/or the integrated circuit.
Claim 13
Dependent Claim
71 words
The method of claim 10, wherein the step of conformally coating the at least one die and integrated circuit comprises the steps of: positioning a mold form around the integrated circuit; adding a liquid non-conductive material within said mold form, said liquid non-conductive material conformally coating the at least one die and integrated circuit; and curing the liquid non-conductive material, wherein the cured non-conductive material has a substantially level top surface.
Claim 14
Dependent Claim
21 words
The method of claim 11, further comprising the step of removing the mold form after curing of the liquid non-conductive material.
Claim 15
Dependent Claim
20 words
The method of claim 11, wherein the liquid non-conductive material comprises a liquid dielectric filler material suitable for microelectronic purposes.
Claim 16
Dependent Claim
25 words
The method of claim 13, wherein the dielectric filler material is selected from the group consisting of thermosets, thermoplastics, Plaskon, epoxies, polyimides, polyesters and Teflons.
Claim 17
Dependent Claim
31 words
The method of claim 10, wherein the step of providing a mold form around the integrated circuit comprises the step of providing the mold form around the integrated circuit and substrate.
Claim 18
Dependent Claim
21 words
The method of claim 15, further comprising the step of removing the mold form after curing of the liquid non-conductive material.
Claim 19
Dependent Claim
20 words
The method of claim 10, wherein the substrate is selected from the group consisting of ceramic, silicon, plastic and metal.
Claim 20
Dependent Claim
26 words
The method of claim 10, wherein the at least one die is adhesively attached to the active surface of the integrated circuit with a non-conductive adhesive.
Claim 21
Dependent Claim
30 words
The method of claim 10, wherein the at least one die is adhesively attached to the active surface of the integrated circuit at a predetermined location with a conductive adhesive.
Claim 22
Dependent Claim
29 words
The method of claim 10, wherein the step of providing an integrated circuit on a substrate comprises the step of integrally forming an integrated circuit on a non-conductive substrate.
Claim 23
Dependent Claim
55 words
The method of claim 10, wherein the step of providing an integrated circuit on a substrate comprises the steps of: providing an integrated circuit chip having an active surface and a mounting surface opposite the active surface; and adhesively attaching the mounting surface of the integrated circuit chip to the substrate with a non-conductive adhesive.
Claim 24
Dependent Claim
108 words
The method of claim 10, further comprising the steps of: conformally coating the layer of non-conductive material, the plurality of vias and the pattern of metallization with a second layer of non-conductive material, said second layer of non-conductive material having a substantially level top surface; forming a second plurality of vias in the second layer of non-conductive material selectively aligned with the at least one die and/or the integrated circuit, respectively; and forming a second pattern of metallization on the top surface of the second layer of non-conductive material extending through the second plurality of vias and selectively interconnecting the at least one die and/or the integrated circuit.
Claim 25
Dependent Claim
75 words
The method of claim 22, wherein the step of conformally coating the layer of non-conductive material, the plurality of vias, and the pattern of metallization, comprises the steps of: positioning a mold form around the first layer of non-conductive material and first pattern of metallization; adding a liquid dielectric filler material within said mold form; and curing the liquid dielectric filler material, wherein the cured liquid dielectric filler material has a substantially level top surface.
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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) | 2003-02-14 | 2003-08-16 | 2004-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-02-14 | 2007-08-16 | 2008-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-02-14 | 2011-08-16 | 2012-02-15 | $7700.00 | Window Closed / Lapsed |