Cured film and method for producing same

Provided is a cured film having high chemical resistance, high elongation, and high adhesion to metal copper. A cured film formed by curing a photosensitive resin composition containing a polybenzoxazole precursor, in which a rate at which the polybenzoxazole precursor is cyclized into polybenzoxazo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Isobe, Kimio, Okuda, Ryoji, Masuda, Yuki, Shoji, Yu
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Provided is a cured film having high chemical resistance, high elongation, and high adhesion to metal copper. A cured film formed by curing a photosensitive resin composition containing a polybenzoxazole precursor, in which a rate at which the polybenzoxazole precursor is cyclized into polybenzoxazole is not less than 10% and not more than 60%.