发明名称 LEADFRAME FOR INTEGRATED CIRCUIT DIE PACKAGING IN A MOLDED PACKAGE AND A METHOD FOR PREPARING SUCH A LEADFRAME
摘要 Embodiments of a method for preparing a leadframe for integrated circuit (IC) die packaging in a molded package with an exposed die pad are disclosed. In one embodiment, a method involves producing a leadframe with a die pad, wherein the die pad has a top surface, a bottom surface, and a perimeter edge. The die pad is then planarized to flatten burrs that may exist at the perimeter edge of the die pad, wherein planarizing the die pad comprises embedding tool markings in the die pad at the perimeter edge of the die pad, the tool markings including a series of peaks and valleys that run parallel to the perimeter edge at all locations around the perimeter edge. Embodiments of a leadframe for IC die packaging in a molded package are also disclosed.
申请公布号 US2013319744(A1) 申请公布日期 2013.12.05
申请号 US201213486357 申请日期 2012.06.01
申请人 WU TSUNG YI;CHERN CHYI KEH;CHANG TSUNG WEN;NXP B.V. 发明人 WU TSUNG YI;CHERN CHYI KEH;CHANG TSUNG WEN
分类号 H05K1/11;H01L21/56 主分类号 H05K1/11
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