发明名称 Electroplating both sides of a workpiece
摘要 A method of electroplating both sides of a dual-sided circuit board substrate having electrically connected, multi-trace circuit patterns formed on both sides of the substrate, without requiring formation and at least partial removal of electrically conductive tie bars, comprises steps of covering and electrically contacting a first one of the circuit patterns with a first layer of electrically conductive material, applying an electrical potential to the first layer of electrically conductive material to effect electroplating on the second one of the circuit patterns, removing the first layer of electrically conductive material, covering and electrically contacting the second one of the circuit patterns with a second layer of electrically conductive material, applying an electrical potential to the second layer of electrically conductive material to effect electroplating on the first one of the circuit patterns, and removing the second layer of electrically conductive material.
申请公布号 US6426290(B1) 申请公布日期 2002.07.30
申请号 US20000641351 申请日期 2000.08.18
申请人 ADVANCED MICRO DEVICES, INC. 发明人 VIVARES VALERIE;NEWMAN ROBERT;FONTECHA EDWIN R.
分类号 H05K3/24;H05K3/28;H05K3/32;(IPC1-7):H01L21/44 主分类号 H05K3/24
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