Electrically conductive adhesive film and dicing die bonding film

Abstract

A means that exhibits excellent heat resistance and mounting reliability when bonding a power semiconductor device on to a metal lead frame, which is also lead-free and places little burden on the environment. Specifically, an electrically conductive adhesive film, which includes metal particles, a thermosetting resin, and a compound having Lewis acidity or a thermal acid generator, wherein the compound having Lewis acidity or thermal acid generator is selected from: boron fluoride or a complex thereof, a protonic acid with a pKa value of −0.4 or lower, or a salt or acid obtained by combining an anion that is the same as the salt thereof with hydrogen ion or any other cation. Further, a dicing die bonding film that is obtained by bonding the electrically conductive adhesive film with a pressure-sensitive adhesive tape.

Dependencies are inferred from the claim text.