发明授权
US07169707B2 Method of manufacturing package substrate with fine circuit pattern using anodic oxidation 失效
使用阳极氧化制造具有精细电路图案的封装衬底的方法

Method of manufacturing package substrate with fine circuit pattern using anodic oxidation
摘要:
Disclosed herein is a method of manufacturing a package substrate with a fine circuit pattern using anodic oxidation. By anodizing a metal core which is opened through a masking process, oxidation layers are formed in open areas of the metal core to insulate portions of circuit pattern from each other. Further, by electroplating portions provided between the oxidation layers with copper or filling conductive paste between the oxidation layers using a screen, a package substrate having a fine circuit pattern is achieved.
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