Narrow-gap flip chip underfill composition

An underfill composition comprises a curable resin, a plurality of filler particles loaded within the resin, the filler particles comprising at least 50 weight % of the underfill composition. The filler particles comprise first filler particles having a particle size of from 0.1 micrometers to 15 mi...

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Bibliographic Details
Main Authors ANANTHAKRISHNAN NISHA, BAI YIQUN, KRISHNAN ARJUN, XIU YONGHAO
Format Patent
LanguageEnglish
Published 23.02.2016
Subjects
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOSITIONS BASED THEREON
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
SEMICONDUCTOR DEVICES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Summary:An underfill composition comprises a curable resin, a plurality of filler particles loaded within the resin, the filler particles comprising at least 50 weight % of the underfill composition. The filler particles comprise first filler particles having a particle size of from 0.1 micrometers to 15 micrometers and second filler particles having a particle size of less than 100 nanometers. A viscosity of the underfill composition is less than a viscosity of a corresponding composition not including the second filler particles.
Bibliography:Application Number: US201314135236