Patent ID: 11908762
Assignee: RESONAC CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B  C | IPC B  C  H

Claim 15:
16. A temporary protective film for semiconductor sealing molding, comprising a support film and an adhesive layer provided on one surface or both surfaces of the support film,
wherein the adhesive layer contains an aromatic polyether amideimide,
wherein the support film comprises a film of a an aromatic polyimide,
wherein a ratio of a thickness of the adhesive layer to a thickness of the support film is 0.2 or less
wherein an elastic modulus at 30° C. of the temporary protective film is 9 GPa or less, and
wherein a coefficient of linear expansion at 30° C. to 200° C. of the temporary protective film is greater than or equal to 16 ppm/° C. and less than or equal to 20 ppm/° C. in at least one in-plane direction of the temporary protective film.