| abstract |
An underfill adhesive film capable of increasing the glass transition temperature without deteriorating flexibility. An epoxy resin having a number average molecular weight of 600 or less, a phenol resin having a number average molecular weight of 500 or more, and an elastomer, wherein the content of the epoxy resin in the resin component is 5 wt% to 50 wt% Wherein the content of the phenol resin is 5 wt% to 50 wt%. |