Patent ID: 6232563
Filing Date: 2001-05-15
Classification: H01L

Abstract:
A connector on a substrate for connecting a plurality of electrodes formed over the substrate to external terminals, the connector comprising:a plurality of electrodes over the substrate;a plurality of electrically conductive bumps over the substrate, each of the electrically conductive bumps being electrically connected to a respective one of the plurality of electrodes;a plurality of conductive particles on respective top surfaces of the electrically conductive bumps electrically connecting respective electrically conductive bumps to the external terminals; andan insulating layer formed of a nitride or an oxide on the top surface and side surfaces of each of the plurality of electrically conductive bumps to prevent an electrical short which may occur through the side surfaces of the electrically conductive bumps by aggregation of the plurality of conductive particles between the adjacent electrically conductive bumps, wherein the insulating layer is a substantially uniform thick layer being disposed on the side surfaces such that a space is defined between adjacent electrically conductive bumps and such that a thickness of the insulating layer on the substrate is less than a height of the electrically conductive bumps, and on a first portion of the top surface such that a second portion of the top surface is exposedwherein the exposed second portion of the top surface has an area greater than a cross-sectional area of the conductive particles.