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US 2014/0153167 A1Published application
Conductive compositions and methods of using them
AssigneeAlpha Metals, Inc.
InventorsRajan Hariharan, James Hurley, Senthil Kanagavel, Jose Quinones, Martin Sobczak, Deborah Makita
Life of this patent
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Abstract
A conductive composition includes a mono-acid hybrid that includes an unprotected, single reactive group. The mono-acid hybrid may include substantially non-reactive groups elsewhere such that the mono-acid hybrid is functional as a chain terminator. Methods and devices using the compositions are also disclosed.
Claims21
A conductive composition, comprising:
- at least one metal;
- a solder or solder alloy;
- a resin;
- and
- a mono-acid hybrid comprising an unprotected, single reactive group at a first terminus and substantially non-reactive groups elsewhere such that the mono-acid hybrid is functional as a chain terminator.
2 more elements
An electronic component, comprising:
- a semiconductor chip with a solderable surface to provide one or more vertical interconnection pathways;
- and
- a cured electrically conductive composition, the composition comprising, prior to curing,
- an mono-acid hybrid comprising an unprotected, single reactive group at a first terminus and substantially non-reactive groups elsewhere such that the mono-acid hybrid is functional as a chain terminator,
- an epoxy resin, and
- an effective amount of at least one metal to render the composition electrically conductive.
3 more elements
A method of facilitating assembly of an electronic component, comprising:
- providing a thermally and/or electrically conductive composition comprising a mono-acid hybrid, a resin, an anhydride and an effective amount of a metal to render the composition thermally and/or electrically conductive, wherein the mono-acid hybrid of the composition is a compound having the following formula:
- wherein X equals 1 to 9 and R1 and R2 are each independently selected from the group consisting of H, C1-C6 alkyl groups, C1-C6 aliphatic groups, C1-C6 alkoxy groups, and C1-C9 aromatic groups, any of which may be substituted with one or more functionalities that are substantially non-reactive to avoid cross-linking with other components of the composition.
Dependencies are inferred from the claim text.