Patent ID: 6521481
Filing Date: 2003-02-18
Classification: H01L

Abstract:
A method for controlling adhesive distribution in a flip-chip semiconductor product, the method comprising steps of:providing a substrate having a flip-chip mounted on the substrate, wherein multiple bumps are formed on a bottom surface of the flip-chip and the bumps are electrically attached to the substrate; providing an dam on the substrate and along an edge of the flip-chip, wherein a gap is defined between the dam and a side of the flip-chip, and the shape of the dam varies based on the density of the bumps; and depositing adhesive on the dam to flow through the gap and into a space between the bottom surface of the flip-chip and the substrate, so that the space is filled with adhesive, wherein a flowing speed of the adhesive is controlled by the shape of the dam to be equal, wherein the shape of the dam is viewed from a top plan view of the dam, so that a uniform adhesive distribution is obtained.