Verbundener Körper, Verbindungsfolie und Verfahren zur Herstellung eines Verbundenen Körpers

Details

Veröffentlichungs-Nr.

EP4803302

Anmeldetag

30. Oktober 2024

Veröffentlichung

8. Mai 2025

Rechtsraum

EP

Abstract

Provided is a bonded body including an upper metal-containing member 2 and a lower metal-containing member 3 bonded, respectively, to upper and lower surfaces of a bonding sheet 1, which can suppress cracks and deformations in the bonding sheet 1 even when stress is applied to the bonding sheet 1 due to a difference in expansion coefficients between the members caused by temperature changes.The upper metal-containing member 2 and the lower metal-containing member 3 each have a metal portion in a bonding surface with the bonding sheet 1, the bonding sheet 1 is a cured product of a thermosetting resin composition containing a thermosetting resin and an inorganic filler, the entire upper surface of the bonding sheet 1 is bonded to the upper metal-containing member 2, the entire lower surface of the bonding sheet 1 is bonded to the lower metal-containing member 3, and when the bonding sheet 1 is viewed in cross-section, a value of P_1A/P_1B is more than 1.10, where P_1A is a resin area ratio in an end region 1A extending 300 µm inward from either the left or right end of the bonding sheet 1, and P_1B is a resin area ratio in a central region 1B other than the end region 1A.

Anmelder

Firma

Mitsubishi Chemical Corporation

Land

🇯🇵 Japan