Roughened copper foil, copper clad laminate, and printed circuit board

Provided is a roughened copper foil for which adhesion to an insulating resin and reliability (for example, heat resistance after moisture absorption) can be significantly improved. This roughened copper foil has a roughened surface with microprotrusions and recesses configured from needle-like crys...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TSUYOSHI HIROAKI, MOGI SATOSHI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:Provided is a roughened copper foil for which adhesion to an insulating resin and reliability (for example, heat resistance after moisture absorption) can be significantly improved. This roughened copper foil has a roughened surface with microprotrusions and recesses configured from needle-like crystals on at least one side and the surface of the needle-like crystals overall comprises a mixed phase of Cu metal and Cu2O. 本发明提供能够显著地提高与绝缘树脂的密合性和可靠性(例如吸湿耐热性)的粗糙化处理铜箔。本发明的粗糙化处理铜箔在至少侧具有具备由针状结晶构成的微细凹凸的粗糙化处理面,针状结晶的表面全部由Cu金属和CuO的混相构成。