Carrier for electronic components
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsLeif Bergstedt, Per Ligander
Life of this patent
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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.
Claims10
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.
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.
Dependencies are inferred from the claim text.