Patent ID: 8633396

Claim:
A die mounting substrate, comprising: a mounting substrate having a pad; a die having a terminal and surface-mounted on the mounting substrate; and a conductive paste bump formed on the pad or the terminal so as to connect the pad and the terminal to each other, wherein the conductive paste bump is formed to have the same size as the pad or the terminal on which the conductive paste bump is formed, thus enlarging the adhesion area to enhance the force of adhesion; wherein the conductive paste bump has a cross-sectional shape of a trapezoid or an inverted trapezoid, and wherein the conductive paste bump comprises carbon nanotubes, wherein one side of the conductive paste bump has a size same as the pad, and the other side of the conductive bump has a size same as the terminal, wherein an underfill resin is applied between the mounting substrate and the die.