SEMICONDUCTOR DEVICE MANUFACTURING METHOD AND SEMICONDUCTOR DEVICE

PROBLEM TO BE SOLVED: To improve reliability of a semiconductor device.SOLUTION: A semiconductor device PKG is manufactured by: forming a resin encapsulation part for encapsulation a die pad, a semiconductor chip mounted on the die pad, a plurality of leads and a plurality of wires for electrically...

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Hauptverfasser: NISHIKIZAWA ATSUSHI, MATSUSHITA TSUKASA, DANNO TADATOSHI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To improve reliability of a semiconductor device.SOLUTION: A semiconductor device PKG is manufactured by: forming a resin encapsulation part for encapsulation a die pad, a semiconductor chip mounted on the die pad, a plurality of leads and a plurality of wires for electrically connecting a plurality of pad electrodes of the semiconductor chip with the plurality of leads, respectively; and subsequently, cutting the resin encapsulation part and the plurality f leads by using a rotary blade. In the semiconductor device PKG, at least part of each of the leads LD1, LD2 is exposed from an undersurface MRb of the encapsulation part MR; and end faces TM1, TM2 as cut surfaces of the leads LD1, LD2 are exposed from a lateral face of the encapsulation part MR as a cut surface of the resin encapsulation part. A distance between a lower side KH1 of the end face TM1 of the lead LD1 and a top face MRa of the encapsulation part MR is smaller than a distance between an upper side JH2 of the end face TM2 of the neighboring lead LD2 and the top face MRa of the encapsulation part MR.SELECTED DRAWING: Figure 9 【課題】半導体装置の信頼性を向上させる。【解決手段】ダイパッドと、ダイパッド上に搭載された半導体チップと、複数のリードと、半導体チップの複数のパッド電極と複数のリードとをそれぞれ電気的に接続する複数のワイヤと、を封止する樹脂封止部を形成してから、樹脂封止部と複数のリードとを回転刃を用いて切断することで、半導体装置PKGを製造する。半導体装置PKGにおいて、リードLD1,LD2のそれぞれの少なくとも一部は封止部MRの下面MRbから露出され、リードLD1,LD2の切断面である端面TM1,TM2は、樹脂封止部の切断面である封止部MRの側面から露出されている。リードLD1の端面TM1の下辺KH1と封止部MRの上面MRaとの間の距離は、その隣のリードLD2の端面TM2の上辺JH2と封止部MRの上面MRaとの間の距離よりも小さい。【選択図】図9