发明名称 Ball grid array package with stepped stiffener layer
摘要 Electrically, thermally and mechanically enhanced ball grid array (BGA) packages are described. An IC die is mounted on a first surface of a stiffener. A first surface of a substrate is attached to a second surface of the stiffener that is opposed to the first surface of the stiffener. A bond pad of the IC die is coupled to a contact pad on the first surface of the substrate with a wire bond. The wire bond is coupled over a recessed step region in the first surface of the stiffener and through a through-pattern in the stiffener that has an edge adjacent to the recessed step region. The through-pattern in the stiffener is one of an opening through the stiffener, a recessed portion in an edge of the stiffener, or other through-pattern.
申请公布号 US7245500(B2) 申请公布日期 2007.07.17
申请号 US20020284371 申请日期 2002.10.31
申请人 BROADCOM CORPORATION 发明人 KHAN REZA-UR RAHMAN;ZHAO SAM ZIQUN
分类号 H05K7/02;H01L23/10;H01L23/13;H01L23/498;H05K7/06;H05K7/10 主分类号 H05K7/02
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