Patent ID: 8586409
Filing Date: 2013-11-19
Classification: H01L,H05K,Y10T

Abstract:
1. Method of electrical connection between a series of hard conductive sharpened points with an angle at the summit less than 30° and corresponding pads arranged on one face of a first component, and a series of buried ductile conductive bumps and corresponding pads arranged on one face of a second component, a ratio of the Young's moduli between the series of hard conductive sharpened points and the series of buried ductile conductive bumps being greater than 10, the method comprising: forming said series of hard conductive sharpened points on said face of the first component; forming said series of buried ductile conductive bumps on said face of the second component; electrically connecting the pads of the first component and the pads of the second component by inserting said series of hard conductive sharpened points in said series of buried ductile conductive bumps at an ambient temperature without heating the buried ductile conductive bumps; and realizing a mechanical holding between the two components by direct bonding the first and the second components together without applying heat to the buried ductile conductive bumps.