Geometrical Effects on Ultrasonic Al Bump Direct Bonding for Microsystem Integration: Simulation and Experiments

This study employed finite element analysis to simulate ultrasonic metal bump direct bonding. The stress distribution on bonding interfaces in metal bump arrays made of Al, Cu, and Ni/Pd/Au was simulated by adjusting geometrical parameters of the bumps, including the shape, size, and height; the bon...

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Bibliographic Details
Main Authors: Jun-Hao Lee, Pin-Kuan Li, Hai-Wen Hung, Wallace Chuang, Eckart Schellkes, Kiyokazu Yasuda, Jenn-Ming Song
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/12/7/750