Patent US6690583B1 successfully refreshed from Google Patents.
US6690583B1
Expired / Lapsed
US
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Carrier for electronic components
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 2000-05-19
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Granted: 2004-02-10
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Expires: 2020-05-19
Abstract
Abstract A carrier intended for one or several electronic components and having spaces provided for the components on at least one surface is provided. The carrier has an at least partly conductive Low Temperature Cofire Ceramic (LTCC) material with good thermal conduction capacity, so that the carrier provides mechanical support for the components and conducts heat generated by the components.
Inventors
- 👤 Leif Bergstedt
- 👤 Per Ligander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:09
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/20; H10W40/25; H10W40/251; H10W40/259; H10W70/00; H10W70/01; H10W70/05; H10W70/08; H10W70/09; H10W72/00; H10W72/01; H10W72/013; H10W99/00; H10W70/099; H10W70/60; H10W70/67; H10W70/68; H10W70/682; H10W72/071; H10W72/073; H10W72/20; H10W72/241; H10W72/851; H10W72/874; H10W90/00; H10W90/701; H10W90/731; H10W90/734
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
218 words
A carrier for mounting at least one electronic component, said component having a top surface, a bottom surface, and a plurality of lateral sides, said carrier comprising: a main body having a substantially planar top surface, said body being constructed, to a depth at least as great as the height of the component, of a single layer of Low Temperature Co-fired Ceramic (LTCC) material having good thermal conduction capacity, said top surface having at least one recess formed therein for providing mechanical support for the at least one component and conducting away heat generated by the component, said recess having sides of substantially the same dimension and form as the lateral sides of the component, and having a depth substantially equal to the height of the component; an adhesive applied to a bottom surface of the recess for mounting the component in the recess; at least one electrical contact member mounted on the top surface of the component and extending outward from the surface a predetermined height; a dielectric layer covering the top surface of the main body and the top surface of the component mounted in the recess, said dielectric layer having a thickness that is less than the predetermined height of the electrical contact member; and at least one conductive path formed on the dielectric layer.
Claim 2
Dependent Claim
218 words
A carrier for mounting at least one electronic component, said component having a top surface, a bottom surface, and a plurality of lateral sides, said carrier comprising: a main body having a substantially planar top surface, said body being constructed, to a depth at least as great as the height of the component, of a single layer of Low Temperature Co-fired Ceramic (LTCC) material having good thermal conduction capacity, said top surface having at least one recess formed therein for providing mechanical support for the at least one component and conducting away heat generated by the component, said recess having sides of substantially the same dimension and form as the lateral sides of the component, and having a depth substantially equal to the height of the component; an adhesive applied to a bottom surface of the recess for mounting the component in the recess; at least one electrical contact member mounted on the top surface of the component and extending outward from the surface a predetermined height; a dielectric layer covering the top surface of the main body and the top surface of the component mounted in the recess, said dielectric layer having a thickness that is less than the predetermined height of the electrical contact member; and at least one conductive path formed on the dielectric layer.
Claim 3
Dependent Claim
16 words
The carrier of claim 1 , wherein the LTCC material comprises glass mixed with metallic particles.
Claim 4
Dependent Claim
18 words
The carrier of claim 1 , wherein the recess is sized to accept an industrial standard “flip chip”.
Claim 5
Dependent Claim
27 words
The carrier of claim 1 , wherein the at least one conductive path on the dielectric layer is connected to the at least one electrical contact member.
Claim 6
Independent Claim
171 words
A method of manufacturing a heat conducting carrier for at least one electronic component, the method comprising the steps of: manufacturing a piece of Low Temperature Co-fired Ceramic (LTCC) material; forming on a surface of the piece, at least one recess for mounting the component, said recess having sides of substantially the same dimension and form as the component, and having a depth substantially equal to a height of the component, said forming step comprising: heating the material; and pressing the recess into the surface with a forming plate having extensions thereon of the desired dimension and form for the recess; cooling the piece into a substantially solid form; adding adhesive to a bottom surface of the recess; adhering the mounted component to the bottom surface of the recess by means of the adhesive; placing a dielectric layer over the at least one surface of the piece and the mounted component; arranging conductive paths on the dielectric layer; and connecting the conductive paths to electrical contact members connected to the component.
Claim 7
Independent Claim
171 words
A method of manufacturing a heat conducting carrier for at least one electronic component, the method comprising the steps of: manufacturing a piece of Low Temperature Co-fired Ceramic (LTCC) material; forming on a surface of the piece, at least one recess for mounting the component, said recess having sides of substantially the same dimension and form as the component, and having a depth substantially equal to a height of the component, said forming step comprising: heating the material; and pressing the recess into the surface with a forming plate having extensions thereon of the desired dimension and form for the recess; cooling the piece into a substantially solid form; adding adhesive to a bottom surface of the recess; adhering the mounted component to the bottom surface of the recess by means of the adhesive; placing a dielectric layer over the at least one surface of the piece and the mounted component; arranging conductive paths on the dielectric layer; and connecting the conductive paths to electrical contact members connected to the component.
Claim 8
Dependent Claim
22 words
The method of claim 5 , wherein the step of manufacturing a piece of LTCC material includes mixing glass with metallic particles.
Claim 9
Dependent Claim
30 words
The method of claim 6 , wherein the step of mixing glass with metallic particles includes mixing glass with metallic particles selected from the group consisting of aluminum and copper.
Claim 10
Dependent Claim
43 words
The method of claim 5 , where the step of placing a dielectric layer over the surface of the piece and the mounted component includes placing a dielectric layer with a thickness that is less than the height of the electrical contact members.
Claim 11
Dependent Claim
65 words
The method of claim 5 , wherein a plurality of components are mounted in a plurality of recesses, and the steps of arranging conductive paths on the dielectric layer and connecting the conductive paths to the electrical contact members include arranging the conductive paths to link the plurality of components, and connecting the conductive paths to the electrical contact members of the plurality of components.
Claim 12
Dependent Claim
31 words
The method of claim 5 , further comprising applying thermal conductive paste to the sides of the recess prior to adhering the mounted component to the bottom surface of the recess.
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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) | 2007-02-09 | 2007-08-11 | 2008-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-02-09 | 2011-08-11 | 2012-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-02-09 | 2015-08-11 | 2016-02-10 | $7700.00 | Window Closed / Lapsed |