Laminate

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 27/34 (2006.01) C09J 7/02 (2006.01) H01L 21/304 (2006.01)

Patent

CA 2551542

Disclosed is a multilayer body which is suitably used as an insulating layer for electronic mounting or an adhesive film for securing semiconductor wafers in semiconductor devices. Also disclosed are various laminates using such a multilayer body and a method for producing such a multilayer body. Specifically disclosed is a multilayer body (I) comprising a base layer (A) and an adhesive layer (B) wherein the layer (B) is formed on either or both sides of the layer (A). The layer (A) is a film composed of (A-1) a specific fully aromatic polyimide (PIA-1) or (A-2) a specific fully aromatic polyamide (PAA-2). The layer (B) is composed of (B-1) a specific fully aromatic polyimide (PIB-1), (B-2) a specific fully aromatic polyamide (PAB-2) or (B-3) a resin composition (RCB-3) composed of a specific fully aromatic polyimide (PIB-3) and a specific fully aromatic polyamide (PAB-3).

La présente invention a trait à un élément multicouche apte à être utilisé comme couche d'isolation pour un montage électronique ou comme film adhésif pour la fixation de tranches semi-conductrices dans des dispositifs à semi-conducteurs. L'invention a également trait à divers stratifiés utilisant un tel élément multicouche et un procédé pour la production d'un tel élément multicouche. De manière spécifique, l'invention a trait à un élément multicouche (I) comportant une couche de base (A) et une couche adhésive (B) dans lequel la couche (B) est formée sur une ou les deux faces de la couche (A). La couche (A) est un film constitué (A-1) d'un polyimide spécifique entièrement aromatique (PI<A-1>) ou (A-2) d'un polyamide spécifique entièrement aromatique (PA<A-2>). La couche (B) est constituée (B-1) d'un polyimide spécifique entièrement aromatique (PI<B-1>), (B-2) d'un polyamide spécifique entièrement aromatique (PA<B-2>) ou (B-3) d'une composition de résine (RC<B-3>) et d'un polyimide spécifique entièrement aromatique (PA<B-3>).

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