发明名称 METALLIZATION SYSTEM OF A SEMICONDUCTOR DEVICE INCLUDING METAL PILLARS HAVING A REDUCED DIAMETER AT THE BOTTOM
摘要 In a metallization system of a complex semiconductor device, metal pillars, such as copper pillars, may be formed in a nail-like configuration in order to reduce the maximum mechanical stress acting on the metallization system while providing a required contact surface for connecting to the package substrate. The nail-like configuration may be obtained on the basis of appropriately configured resist masks.
申请公布号 US2010219527(A1) 申请公布日期 2010.09.02
申请号 US20100710458 申请日期 2010.02.23
申请人 发明人 FEUSTEL FRANK;FROHBERG KAI;WERNER THOMAS
分类号 H01L23/488;H01L21/60 主分类号 H01L23/488
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