Inhibiting underfill flow using nanoparticles
First Claim
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1. An apparatus, comprising:
- a substrate;
a component disposed adjacent to the substrate;
a plurality of nanoparticles disposed adjacent to the substrate and proximate to at least a first side of the component;
the nanoparticles each having an outer surface, the outer surface having a characteristic of being substantially immiscible with a flowable adhesive material.
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Abstract
A method and apparatus for inhibiting the flow of a flowable adhesive material disposed adjacent to a substrate. A chip component is disposed adjacent to a substrate and a plurality of nanoparticles are disposed and cured adjacent to the substrate and proximate to the chip component. The nanoparticles possess surface properties that make them substantially immiscible with a flowable adhesive. The band of nanoparticles will inhibit the flow of a flowable adhesive material disposed between the chip and the nanoparticles, in a direction bounded by the plurality of nanoparticles, while adhesive flow in the direction of the component is promoted.
17 Citations
17 Claims
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1. An apparatus, comprising:
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a substrate; a component disposed adjacent to the substrate; a plurality of nanoparticles disposed adjacent to the substrate and proximate to at least a first side of the component; the nanoparticles each having an outer surface, the outer surface having a characteristic of being substantially immiscible with a flowable adhesive material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An assembly, comprising:
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a substrate; a chip component disposed adjacent to the substrate; a plurality of nanoparticles disposed adjacent to the substrate and proximate to at least a first side of the chip component, the nanoparticles each having an outer surface, the outer surface of the nanoparticles having a characteristic of being substantially immiscible with a flowable adhesive material; another component disposed adjacent to the substrate proximate to a side of the nanoparticles opposite the chip component, the nanoparticles forming a boundary between the chip component and the other component; and a flowable adhesive disposed adjacent to the substrate and between the chip component and the nanoparticles. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification