Flexible circuit with coverplate layer and overlapping protective layer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 20, 2001
Grant Date -
N/A
app pub date -
Apr 11, 2000
filing date -
Apr 11, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A printed circuit including a dielectric substrate and a conductive trace attached to a surface of the dielectric substrate. The trace includes a base layer and a coverplate layer on a portion of the base layer. The coverplate layer defines a coverplate edge on the base layer. A protective layer is formed on a portion of the coverplate layer. The protective layer extends beyond the coverplate edge onto at least a portion of the base layer of the trace. A key aspect of the present invention is that the protective layer overlaps the coverplate edge of each trace to reduce the potential for corrosion of the base layer at the coverplate edge.
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