首页>
外国专利>
EXPANDABLE BASE FILM, DICING FILM, SURFACE PROTECTIVE FILM FOR SEMICONDUCTOR, AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
EXPANDABLE BASE FILM, DICING FILM, SURFACE PROTECTIVE FILM FOR SEMICONDUCTOR, AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
展开▼
机译:用于半导体的可扩展基膜,切丁膜,表面保护膜以及制造半导体装置的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
PROBLEM TO BE SOLVED: To provide an expandable base film which is excellent in stress relaxation properties and is reduced in anisotropy of tensile elongation at break and anisotropy of tear strength.SOLUTION: The expandable base film contains: a polymer A containing 70-95 mol% of a constituent unit (X) derived from 4-methyl-1-pentene and 5-30 mol% of a constituent unit (Y) derived from a C2-C20 -olefin other than 4-methyl-1-pentene; and a polymer B containing the constituent unit (Y) as a main component. When the total amount of the polymer A and the polymer B is 100 pts.mass, the content of the polymer A is 20-90 pts.mass and the content of the polymer B is 10-80 pts.mass.
展开▼