公开(公告)号：US20040251538A1

公开(公告)日：2004-12-16

申请号：US10690921

申请日：2003-10-21

Applicant: Siliconware Precision Industries Co., Ltd.

Inventor： Chang-Fu Lin ,  Han-Ping Pu ,  Chien-Ping Huang

IPC: H01L023/34

CPC classification number: H01L23/367 ,  H01L23/3672 ,  H01L2224/05571 ,  H01L2224/05573 ,  H01L2224/16 ,  H01L2224/73253 ,  H01L2924/00014 ,  H01L2924/15311 ,  H01L2924/16152 ,  H01L2924/16315 ,  H01L2224/05599

Abstract: A semiconductor package with a heat sink is provided. At least one chip and a heat sink attached to the chip are mounted on a substrate. At least one slot is formed through at least one corner of the heat sink at a position attached to the substrate. An adhesive material is applied between the heat sink and substrate and over filled in the slot with an overflow of the adhesive material out of the slot. The adhesive material over filled in the slot provides an anchoring effect and increases its contact area with the heat sink to thereby firmly secure the heat sink on the substrate. Further, the slot formed at the corner of the heat sink can alleviate thermal stresses accumulated at the corner of the heat sink and thereby prevent delamination between the heat sink and the substrate.

Abstract translation: 提供了具有散热器的半导体封装。 连接到芯片的至少一个芯片和散热片安装在基板上。 在连接到基板的位置处，通过散热器的至少一个角部形成至少一个槽。 将粘合剂材料施加在散热器和衬底之间并且在填充在槽中并且粘合剂材料溢出出槽之外。 填充在槽中的粘合剂材料提供锚定效果并增加其与散热器的接触面积，从而将散热器牢固地固定在基板上。 此外，形成在散热器角落处的槽可以减轻积聚在散热器拐角处的热应力，从而防止散热器和基板之间的分层。