Patent ID: 11935870
Assignee: nan
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A laminate film comprising, in order:
a base material film;
an adhesive layer; and
a support piece formation film comprising a first thermosetting resin layer, a second thermosetting resin layer and a high-rigidity layer having a rigidity greater than a rigidity of the first thermosetting resin layer,
wherein the high-rigidity layer is interposed between the first thermosetting resin layer and the second first thermosetting resin layer,
wherein the second thermosetting resin layer is positioned between the high-rigidity layer and the adhesive layer,
wherein the support piece formation film has a first surface and a second surface opposite to the first surface to face the adhesive layer, and
wherein the support piece formation film has a partial cut extending through the first thermosetting resin layer, through the high-rigidity layer and partially in the second thermosetting resin layer in a thickness direction from the first surface.