CURABLE RESIN COMPOSITION, DRY FILM, CURED PRODUCT, AND ELECTRONIC COMPONENT

To provide a curable resin composition that has excellent developability without delamination and other failure in resolution and thin film deposition and gives a cured product having excellent HAST resistance and crack resistance, a dry film having a resin layer obtained from the composition, a cur...

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Bibliographische Detailangaben
Hauptverfasser: UEDA CHIHO, OKADA KAZUYA, KUDOU TOMOYA, SHIMADA SAWAKO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a curable resin composition that has excellent developability without delamination and other failure in resolution and thin film deposition and gives a cured product having excellent HAST resistance and crack resistance, a dry film having a resin layer obtained from the composition, a cured product of the composition or the resin layer of the dry film, and an electronic component having the cured product.SOLUTION: A curable resin composition contains (A) a carboxyl group-containing resin, (B) a photopolymerization initiator, and (C) an inorganic filler, the (C) inorganic filler having a particle size distribution that satisfies the following conditions (1)-(3): (1) D50 particle size value=1.0 μm or less; (2) (D90 particle size value)/(D10 particle size value)=5.0 or less; (3) ((D90 particle size value)-(D50 particle size value))/((D50 particle size value)-(D10 particle size value))=0.5-5.0.SELECTED DRAWING: Figure 1 【課題】解像性および薄膜形成においてデラミなどの問題なく現像性に優れ、かつHAST耐性やクラック耐性に優れた硬化物が得られる硬化性樹脂組成物、該組成物から得られる樹脂層を有するドライフィルム、該組成物または該ドライフィルムの樹脂層の硬化物、および、該硬化物を有する電子部品を提供する。【解決手段】(A)カルボキシル基含有樹脂、(B)光重合開始剤、および、(C)無機フィラーを含有する硬化性樹脂組成物であって、前記(C)無機フィラーの粒度分布が下記条件(1)〜(3)を満たすことを特徴とする硬化性樹脂組成物等である。(1)D50粒径値=1.0μm以下(2)(D90粒径値)/(D10粒径値)=5.0以下(3)((D90粒径値)−(D50粒径値))/((D50粒径値)−(D10粒径値))=0.5〜5.0【選択図】図1