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SD Flash Memory Card Manufacturing Using Rigid-Flex PCB

  • US 20080195817A1
  • Filed: 04/21/2008
  • Published: 08/14/2008
  • Est. Priority Date: 07/08/2004
  • Status: Abandoned Application
First Claim
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1. A memory card device comprising:

  • a printed circuit board assembly (PCBA) including;

    a rigid-flex printed circuit board (PCB) having opposing first and second surfaces, the rigid-flex printed circuit board (PCB) including at least one rigid PCB section and at least one flexible PCB section connected to the at least one rigid PCB section, and a plurality of conductive traces forming signal paths between said at least one rigid PCB section and at least one flexible PCB section,a plurality of metal contacts disposed on the second surface of the rigid-flex PCB and connected to corresponding conductive traces of said plurality of conductive traces,at least one passive component mounted on the second surface of the rigid-flex PCB, andat least one unpackaged integrated circuit (IC) die mounted on the second surface of the rigid-flex PCB; and

    a housing including;

    a plastic upper housing portion defining one or more openings, wherein the PCBA is mounted into the upper housing portion such that said plurality of metal contacts are exposed through said one or more openings, anda molded casing comprising thermoset plastic formed over the second surface of the rigid-flex PCB such that said at least one passive component and said at least one IC die are encased by said thermoset plastic.

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