PACKAGED DEVICE WITH ACOUSTIC TRANSDUCER AND AMPLIFIER
First Claim
1. A device, comprising:
- an electrically conductive lead frame having an aperture therethrough;
a semiconductor die mounted on the lead frame, and including at least one acoustic transducer disposed above the aperture and configured to convert between acoustic energy and an electrical signal;
an acoustic horn integrally connected to the lead frame, the horn extending from the lead frame and comprising a throat positioned adjacent to the acoustic transducer and a mouth opening at an opposite end of the acoustic horn from the throat;
a substrate mounted on a base portion of the acoustic horn;
an amplifier mounted on the substrate and being electrically connected to the acoustic transducer; and
a lid configured together with the base portion of the housing to define a cavity, wherein the acoustic transducer and the amplifier are positioned within the cavity.
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Accused Products
Abstract
A device includes: a lead frame having an aperture in a central portion thereof; at least one acoustic transducer mounted on the lead frame above the aperture and configured to convert between acoustic energy and an electrical signal with low signal losses; a housing connected to the lead frame and including a base portion on a same side of the lead frame as the acoustic transducer; an amplifier is provided on a base portion of the housing in close proximity to the acoustic transducer; and a lid configured together with the base portion of the housing to define a cavity, wherein the acoustic transducer and the amplifier are closely positioned within the MEMS device cavity.
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Citations
20 Claims
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1. A device, comprising:
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an electrically conductive lead frame having an aperture therethrough; a semiconductor die mounted on the lead frame, and including at least one acoustic transducer disposed above the aperture and configured to convert between acoustic energy and an electrical signal; an acoustic horn integrally connected to the lead frame, the horn extending from the lead frame and comprising a throat positioned adjacent to the acoustic transducer and a mouth opening at an opposite end of the acoustic horn from the throat; a substrate mounted on a base portion of the acoustic horn; an amplifier mounted on the substrate and being electrically connected to the acoustic transducer; and a lid configured together with the base portion of the housing to define a cavity, wherein the acoustic transducer and the amplifier are positioned within the cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device, comprising:
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an electrically conductive lead frame having an aperture therethrough; at least one acoustic transducer mounted on the lead frame above the aperture and configured to convert between acoustic energy and an electrical signal; a housing connected to the lead frame and including a base portion on a same side of the lead frame as the acoustic transducer; an amplifier provided on a base portion of the housing; and a lid configured together with the base portion of the housing to define a cavity, wherein the acoustic transducer and the amplifier are positioned within the cavity. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A device, comprising:
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a lead frame; an housing having a base portion integrated with the lead frame, and a protruding portion extending from the lead frame; a lid configured together with the base portion of the housing to define a cavity; and an acoustic transducer and an amplifier electrically connected together and both disposed within the cavity.
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Specification