专利
MEMS device with a valve mechanism
  • 专利说明:
    The disclosure provides a MEMS device. The MEMS device comprises a printed circuit board, a cover attached to the printed circuit board to form a housing, at least one sound hole formed in the housing, a transducer with a diaphragm inside the housing, and
  • 专利类型:
    PCT或外国申请
  • 专利状态:
    授权专利
  • 授权号:
    US10212501B2
  • 是否职务专利:

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