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Optical module with electrically isolated stem and cap

  • US 7,540,669 B2
  • Filed: 01/17/2008
  • Issued: 06/02/2009
  • Est. Priority Date: 01/18/2007
  • Status: Expired due to Fees
First Claim
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1. An optical module, comprising:

  • a semiconductor optical device;

    a stem including a center portion, a peripheral portion and a insulator interposed between said center portion and said peripheral portion, said center portion mounting said semiconductor optical device;

    a plurality of lead pins, at least one of lead pins directly and electrically connected to said center portion; and

    a metal cap held in said peripheral portion of said stem, said metal cap and said stem forming a space where said semiconductor optical device is installed,wherein said at least one lead pin is fully isolated from said metal cap by said insulator.

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