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Circuit board device for information apparatus, multilayered module board and navigation system

  • US 20050156306A1
  • Filed: 04/09/2003
  • Published: 07/21/2005
  • Est. Priority Date: 04/09/2002
  • Status: Active Grant
First Claim
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1. A circuit board device for an information apparatus comprising:

  • a base board having mounted thereupon a plurality of low-frequency electronic components; and

    a multilayer module board mounted at one surface of the base board and having mounted thereupon a plurality of high-frequency electronic components including at least a CPU and a memory, wherein;

    at the multilayer module board which is a multilayered board smaller in size than the base board, the plurality of high-frequency electronic components are wired to one another through a wiring pattern at an inner layer.

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