Adhesive composition, adhesive tape, and method for processing electronic component

An adhesive composition comprising:

• a reactive resin having an imide backbone and containing a first double bond-containing functional group in a side chain or at an end;
• and
• a silicone compound, wherein
• an amount of the silicone compound in the adhesive composition is 0.1 parts by weight or more and 20 parts by weight or less relative to 100 parts by weight of the reactive resin,
• the silicone compound is a silicone acrylate, a silicone bismaleimide, or a silicone-based graft copolymer, and contains a functional group capable of crosslinking with the reactive resin selected from the group consisting of a carboxy group, a vinyl group, a (meth)acryloyl group, an optionally substituted maleimide group, an amide group, and an isocyanate group, and
• the reactive resin is a reactive resin (1) comprising a structural unit represented by the following formula (1a), a structural unit represented by the following formula (1b), and a structural unit represented by the following formula (1c), and having a first end represented by X1 and a second end represented by X2:
• wherein s≥1, t≥0, and u≥0;
• P1, P2, and P3 each independently represent an aromatic group;
• Q1 represents a dimer diamine-derived aliphatic group, and the dimer diamine-derived aliphatic group is at least one selected from the group consisting of a group represented by the following formula (4-1), a group represented by the following formula (4-2), a group represented by the following formula (4-3), and a group represented by the following formula (4-4):
• wherein R1 to R8 and R13 to R20 each independently represent a linear or branched aliphatic hydrocarbon group;
• Q2 represents an aromatic structure-containing group;
• and
• R represents a branched aliphatic or aromatic group,
• wherein at least one selected from the group consisting of X1, X2, and X3 represents the first double bond-containing functional group, and any of X1, X2, and X3 which do not represent the first double bond-containing functional group is a functional group consisting of an aliphatic group, an alicyclic group, an aromatic group, an acid anhydride, or an amine compound, and
• wherein when t=0 and u=0, at least one selected from the group consisting of X1 and X2 represents the first double bond-containing functional group.