发明名称 Process and lead frame for making leadless semiconductor packages
摘要 A process for making a plurality of leadless packages is disclosed. Firstly, chips are attached onto a lead frame with a first metal layer formed thereon. Each lead of the lead frame has a first portion, a second portion and a third portion connecting the first portion and the second portion, wherein the first metal layer is not provided on the third portion. After a wire bonding step and an encapsulating step are conducted, a second metal layer is selectively plated on the first portions and the second portions of the leads and the die pads exposed from the bottom of the molded product. Then, the third portion of each lead is selectively etched away such that the first portion and the second portion are electrically isolated from each other. Finally, a singulation step is conducted to complete the process. The present invention further provides a new lead frame design.
申请公布号 US2006033184(A1) 申请公布日期 2006.02.16
申请号 US20040915326 申请日期 2004.08.11
申请人 PARK HYUNG J;KIM HYEONG N;PARK SANG B;LEE YONG G;RHO KYUNG S;YANG JUN Y;WON JIN H 发明人 PARK HYUNG J.;KIM HYEONG N.;PARK SANG B.;LEE YONG G.;RHO KYUNG S.;YANG JUN Y.;WON JIN H.
分类号 H01L23/495 主分类号 H01L23/495
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