Structure and method of making capped chip having discrete article assembled into vertical interconnect
First Claim
1. A capped chip, comprising:
- a chip having a front surface and a plurality of conductive features exposed at said front surface;
a cap having an inner surface facing said front surface of said chip, an outer surface opposite said inner surface, and a through hole extending from said outer surface to said inner surface; and
a conductive interconnect extending at least partially through said through hole, said interconnect including a conductive article occupying a substantial portion of a volume of said interconnect, said interconnect further including a flowable conductive medium joining said conductive article to at least one of said plurality of conductive features or to said cap.
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Accused Products
Abstract
A capped chip is provided which includes a chip having a front surface, a plurality of conductive features exposed at the front surface and a cap. The cap has an inner surface facing the front surface of the chip, an outer surface opposite the inner surface, and a through hole extending from the outer surface to the inner surface. A conductive interconnect extends at least partially through the through hole. The interconnect includes a conductive article which occupies a substantial portion of a volume of the interconnect and the interconnect further includes a flowable conductive medium which joins the conductive article to at least one of the plurality of conductive features of the chip or to the cap.
131 Citations
41 Claims
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1. A capped chip, comprising:
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a chip having a front surface and a plurality of conductive features exposed at said front surface;
a cap having an inner surface facing said front surface of said chip, an outer surface opposite said inner surface, and a through hole extending from said outer surface to said inner surface; and
a conductive interconnect extending at least partially through said through hole, said interconnect including a conductive article occupying a substantial portion of a volume of said interconnect, said interconnect further including a flowable conductive medium joining said conductive article to at least one of said plurality of conductive features or to said cap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A capped chip, comprising:
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a chip having a front surface and a plurality of conductive features exposed at said front surface;
a cap having an inner surface facing said front surface of said chip, an outer surface opposite said inner surface, and a through hole extending from said outer surface to said inner surface; and
a conductive interconnect conductively contacting from one of said conductive features and extending through said through hole, said interconnect including a rod-like conductive article extending from below said inner surface of said cap to a level above said outer surface, said conductive article occupying a substantial portion of a volume of said interconnect, said conductive interconnect including a flowable conductive medium joining said conductive article to one of said plurality of conductive features or to said cap. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 41)
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36. A method of forming a capped chip having a plurality of conductive interconnects, comprising:
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aligning a cap member having an outer surface defining a major surface of said cap member and an inner surface opposite said outer surface to a chip having a contact-bearing surface and a plurality of contacts exposed at said contact-bearing surface, such that said inner surface of said cap member faces said contact-bearing surface of said chip;
providing a plurality of loose conductive articles in said through holes; and
flowing a conductive material into said through holes to bond said loose conductive articles to said exposed contacts to form said conductive interconnects. - View Dependent Claims (37)
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38. A method of forming a capped chip comprising:
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(a) providing a chip having a front surface and a plurality of conductive features at said front surface;
(b) assembling a lid having an outer surface, an inner surface opposite said outer surface and a plurality of through holes extending between said inner and outer surfaces, to said chip such that said bottom surface faces said front surface of said chip and said outer surface faces away from said chip, said through holes are aligned with said conductive features of said chip and said bottom surface is vertically spaced from said front surface of said chip;
(c) placing loose conductive articles into said through holes in contact with at least ones of i) said conductive features or ii) said lid; and
(d) forming conductive interconnects having conductive paths extending through at least portions of said conductive interconnects extending from said conductive features at least partially through said through holes, said forming step including causing a flowable conductive material to flow in said through holes and conductively join said conductive articles to at least one of said plurality of conductive features or to said lid. - View Dependent Claims (39, 40)
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Specification