Patent ID: 6166434
Filing Date: 2000-12-26
Classification: H01L

Abstract:
A semiconductor package, comprising:a packaging substrate having a top side and an underside;a semiconductor die having an active surface and a top surface, said active surface of said die facing the top side of said substrate and bonded to the top side of said substrate;an underfill material substantially disposed between said die and said substrate; anda die clip bonded to said top surface of said die, said die clip comprising,a top portion;a bottom surface parallel to the active surface of the die, the bottom surface attached to the top side of said substrate;a side region attached to said top portion; anda cavity defined by said top portion and said side region, the top of said cavity covering and the side region of said cavity only partially enclosing the die mounted on said packaging substrate;wherein said die clip is attached to the die such that opposing portions of the side region of the die clip apply a force to the die to prevent lateral movement of the die; andwherein said die clip is comprised of a material having a modulus of elasticity between about 9.times.10.sup.6 and 30.times.10.sup.6 psi and a thermal conductivity between about 2 and 4 W/cm.multidot.K shaped into said top portion and side region, wherein the top portion and circumferential side region together form a unitary structure which defines said cavity.