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一种HVLP铜箔表面亚微米微粗化处理方法
InventionUnknown
4Claims · 2 independent
§ Ⅰ
Dossier Overview
Inventor
胡文成; 伍孝平; 王妮; 孙良奎; 谢星辰; 曹富康
Filing Date
Aug 27, 2026
Publication Date
Oct 27, 2026
IPC Classification
C25D 7/06 (2006.01)C25D 3/38 (2006.01)C23F 1/18 (2006.01)C23G 1/10 (2006.01)C25D 5/18 (2006.01)C25D 5/00 (2006.01)C25D 5/48 (2006.01)C25D 5/34 (2006.01)C25D 5/10 (2006.01)H05K 1/09 (2006.01)
本发明公开了一种HVLP铜箔表面亚微米微粗化处理方法。本发明包含S1铜箔前处理(微蚀与酸洗)、S2亚微米脉冲微粗化、S3固化封层及S4抗氧化烘干。方法在“低铜高酸”配方中引入不对称高频正负脉冲控制,通过正向脉冲极高过电位引发爆发式形核,反向微弱电流优先溶解尖端(消尖效应),并在前处理与抗氧化处理协同下,在铜箔表面形成粒径100~300 nm的极均一亚微米微瘤,解决了低粗糙度(Rz ≤ 1.2 μm)与高剥离强度的性能博弈痛点。
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