Composite bump bonding
A bonded structure comprising the physical and electrical connections between an integrated circuit element and substrate using a composite bump comprised of a single polymer body of low Young's Modulus and a conductive metal coating. The bond can be formed using thermocompression bonding, ultrasonic bonding, application of heat or application of light. The bond can also be formed using a non conductive adhesive between the integrated circuit element and the substrate. The bond can also be formed with a conductive adhesive coating on the composite bump.
Industrial Technology Research Institute
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Yu-Chi Dyi-Chung Jwo-huei Shyh-Ming
Lee Hu Jou Chang