Patent ID: 9196581
Filing Date: 2015-11-24
Classification: H01L

Abstract:
1. A microelectronic assembly, comprising: a first component having a first surface and first conductive elements projecting above the first surface; a second component having a second surface and second conductive elements projecting above the second surface; at least one of the first or second components being a microelectronic element, at least some of the first conductive elements or at least some of the second conductive elements being substantially rigid conductive posts, the posts having a height above the respective surface from which the posts project; a bond metal disposed between respective pairs of conductive elements, the respective pairs each including at least one of the posts and at least one of the first or second conductive elements confronting the at least one post, the bond metal contacting edges of the posts along at least one half the height of the posts; and an underfill layer contacting and bonding the first and second surfaces of the first and second components, wherein a residue of the underfill layer is present at at least one of interfacial surfaces between at least some of the posts and the bond metal or is present within the bond metal.