Patent ID: 6156626
Filing Date: 2000-12-05
Classification: H01L

Abstract:
A process for connecting a semiconductor chip to a substrate, comprising:providing the substrate that is configured to receive the semiconductor chip having a bonding pad, the substrate having a first side that is suited to be connected to the semiconductor chip and a second side that is opposite the first side;designing a metallization bonding structure on the first side of the substrate, the metallization bonding structure having a first end, a second end, and a bend defined between the first end and the second end;designing an oxide passivation layer over the first side that includes the metallization bonding structure;defining a bonding via through the passivation layer, the bonding via is configured to be aligned with the bend of the metallization bonding structure;joining the semiconductor chip to the oxide passivation layer, such that the bonding pad is aligned with the bonding via and the bend of the metallization bonding structure; andapplying a current between the first end and the second end of the metallization bonding structure, the applied current is configured to cause a flow of electrons in an opposite direction of the current and a flow of metallization atoms in the metallization bonding structure toward the bend and into the bonding via, thereby establishing a conductive bond between the substrate and the bonding pad of the semiconductor chip.