Mitsui Chemicals, Inc.

The School Corporation Kansai University

Yuzo Nakamura

Takayuki Watanabe

Yoshiro Tajitsu

Yasuhisa Kayaba

Jun Kamada

Michio Eriguchi

Tomoya Matayoshi

A method of manufacturing a substrate layered body includes: a step of applying a bonding material to the surface of at least one of a first substrate or a second substrate; a step of curing the bonding material applied on the surface to form a bonding layer having a reduced modulus at 23° C. of 10 GPa or less; and a step of bonding the first substrate and the second substrate via the bonding layer formed.

Method of manufacturing substrate layered body and layered body

An electretized film of the present invention includes a cyclic olefin polymer, in which the electretized film is a non-porous film, and a piezoelectric constant din a thickness direction, which is measured by applying a pressing force to the electretized film in the thickness direction, under conditions of a load of 0.5 N, a dynamic load of &#xb1;0.25 N, a frequency of 110 Hz, a temperature of 23&#xb0; C., and a humidity of 50%, is equal to or more than 100 pC/N.

Electretized film and electronic device

Growing community of inventors

Chiba, Japan

Yuzo Nakamura