Toyochem Co., Ltd.

Artience Co., Ltd.

Toyo Ink Sc Holdings Co., Ltd.

Kenji Ando

Kazunori Matsudo

Tsutomu Hayasaka

Shota Mori

Ryota Umezawa

Wataru Endo

Tamaki Matsuo

An electronic component-mounting substrate including a peeling or falling prevention layer that has excellent adhesion and scratch resistance, can increase smoothness of corner parts of components after processing, and firmly covers a substrate and electronic components provided on the substrate, so that the electronic component-mounting substrate can prevent human nails or other components from getting caught between electronic components that are mounted during a process of mounting the electronic components, preventing the electronic components from peeling off or falling off from the substrate due to an external damage. The electronic component-mounting substrate includes a substrate, an electronic component, and a peeling or falling prevention layer, in which the peeling or falling prevention layer satisfies (1) a rate of change X of a coefficient of static friction is −50% or greater and 200% or smaller, and (2) an index Y is 0.8 or greater and 20.0 or smaller.

Electronic component-mounting substrate and electronic device

An electromagnetic wave shielding sheet according to the present embodiments is an electromagnetic wave shielding sheet for forming an electromagnetic wave shielding layer used for a component-mounting substrate including a substrate, an electronic component and an electromagnetic wave shielding layer, in which the electromagnetic wave shielding sheet includes at least one of a conductive layer before thermal pressing of the electromagnetic wave reflection layer and a conductive layer before thermal pressing of the electromagnetic wave absorption layer, the conductive layer before thermal pressing of the electromagnetic wave reflection layer includes a binder resin and a conductive filler, and the conductive layer before thermal pressing of the electromagnetic wave absorption layer includes a binder resin and an electromagnetic wave absorption filler. The Young's modulus of the conductive layer at 23° C. is set to 10 to 700 MPa.

Electromagnetic wave shielding sheet

An electromagnetic-wave shielding sheet is an electromagnetic-wave shielding sheet used to form an electronic component-mounted substrate, the electronic component-mounted substrate including an electromagnetic-wave shielding layer covering at least a part of a step part and an exposed surface of a substrate, in which the electromagnetic-wave shielding sheet is a laminate including a cushion layer and a conductive layer, the conductive layer is an isotropic conductive layer containing a binder resin and a conductive filler, a thickness of the conductive layer is 8 to 70 &#x3bc;m, and a content of the conductive filler in a region on a side opposite to a cushion layer side in the conductive layer is larger than that in a region on the cushion layer side in the conductive layer.

Electromagnetic-wave shielding sheet and electronic component-mounted substrate

Growing community of inventors

Chuo-ku, Japan

Kenji Ando