发明名称 Mounting pad structure for wire-bonding type lead frame packages
摘要 A chip package having a lead frame, a chip, a plurality of bonding wires, and an insulation material is provided. The lead frame comprises a die pad, a plurality of leads, a plurality of signal pads and a plurality of non-signal pads. The signal pads and non-signal pads are underneath the signal leads and non-signal leads respectively. The non-signal pad is directly connected to a non-signal plane in the circuit board through its own vias. The signal pad has a structure which extends toward its adjacent non-signal pads. With the signal pad size enlarged, the capacitance between the non-signal plane in the circuit board and the signal pad is increased. The increased capacitance compensates the inductance induced from the bonding wires and improves the response of the signal propagation path for RF applications.
申请公布号 US7247937(B2) 申请公布日期 2007.07.24
申请号 US20050031659 申请日期 2005.01.06
申请人 VIA TECHNOLOGIES, INC. 发明人 JIANG SHIN-SHING;LEE SHENG-YUAN
分类号 H01L23/52;H01L23/34;H01L23/495;H01L23/498 主分类号 H01L23/52
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