Invention Application
US20140175655A1 CHIP BONDING STRUCTURE AND MANUFACTURING METHOD THEREOF 审中-公开
芯片结合结构及其制造方法

CHIP BONDING STRUCTURE AND MANUFACTURING METHOD THEREOF
Abstract:
A chip bonding structure at least includes a first substrate, a second substrate opposite to the first substrate, and a copper bonding structure sandwiched in between the first and the second substrates. A Cu—Cu bonding interface is within the copper bonding structure and is characterized with combinations of protrusions and recesses, and the copper crystallization orientation at one side of the Cu—Cu bonding interface is different from that at another side.
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