Method to form electrostatic discharge protection on flexible circuits using a diamond-like carbon material
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United States of America Patent
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Feb 10, 2009
Grant Date -
Jun 2, 2005
app pub date -
Jun 8, 2004
filing date -
Dec 1, 2003
priority date (Note) -
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Abstract
Techniques for preventing electrostatic discharge (ESD) and circuit noise are provided. More particularly, the present invention provides a method to prevent ESD damage during the assembly of computer disk commonly called a hard disk for memory applications. The coating mainly involves a ion-deposition process. Merely by way of example, the present invention is implemented by using filtered cathodic vacuum arc (FCVA) with a dissipative crystalline and/or amorphous carbon base thin film coating on a flexible circuit to drain the potential electrostatic charges during circuit assembly and interconnect processes, yet it would be recognized that the invention has a much broader range of applicability on any electronic apparatus that is susceptible to electrostatic damage and static noise.
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