Patent ID: 6388834
Filing Date: 2002-05-14
Classification: G11B

Abstract:
An apparatus for reducing transmission of electromagnetic interference (â€œEMIâ€ ) noise originating within a head disc assembly in a disc drive, the head disc assembly having a base plate and a top cover enclosing a drive motor supporting a data storage disc thereon and an actuator assembly for transferring data to and from the disc, the actuator assembly including a flex circuit providing a path for data transfer between the disc and circuitry external to the head disc assembly; the apparatus comprising:an electrically conductive grounding member positioned between a portion of the flex circuit and a source of EMI noise in the head disc assembly, the grounding member comprising a flat piece of conductive material formed into a C-shaped body having a straight mid portion joining a curved upper contact portion electrically contacting the top cover and a curved lower contact portion electrically contacting the base plate to reduce the amount of EMI noise received by the flex circuit.