Flexible printed circuit substrate
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United States of America Patent
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Feb 22, 2005
Grant Date -
Sep 9, 2004
app pub date -
Dec 24, 2003
filing date -
Dec 26, 2002
priority date (Note) -
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Abstract
A novel flexible printed circuit substrate can be processed into a flexible printed circuit board having a high-accuracy connecting part which does not cause a connection failure when it is connected to a connector even if a pitch between two adjacent terminals is further reduced. The flexible printed circuit substrate has dummy patterns which are formed, simultaneously with the terminals, on the sides of the connecting part, in a shape corresponding to the outline of both sides of connecting part which are used for positioning the terminals when the connecting part is attached to the connector. The dummy patterns are used as masks when a base film is subjected to a laser process.
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