Patent ID: 11901211
Assignee: FURUKAWA ELECTRIC CO., LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  H  B  Y | IPC B  C  H

Claim 0:
1. A semiconductor-processing tape, comprising:
a base material film, a removable adhesive layer, and an adhesive layer, in this order,
wherein the base material film has the characteristics that stress values in a machine direction (MD) and a transverse direction (TD) at a time of 5%-elongation are each 5 MPa or more, tensile strength values in MD and TD at the time of 5%-elongation are each from 10 to 30 N/25 mm, and a thickness is from 70 to 150 μm,
wherein the adhesive layer has the characteristics that a thickness is 60 to 200 μm and a storage elastic modulus at 25° C. is 2000 MPa or less, and
wherein the base material film has a multi-layer structure comprising two or more layers, and wherein each of the two or more layers of the multi-layer structure consists of an ionomer resin only.