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DESCRIPTION JPS4871829

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DESCRIPTION JPS4871829
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention,
FIG. 1 is an enlarged front view, FIG. 2 is a side view thereof, FIG. 3 is a cross-sectional view of
FIG. Is an exploded perspective view of each part. 1P source E · · · · · · · · · · · · · · · · · · · IC (integrated
circuit) substrate, 8 · · · · · · · · terminal plate, 12 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Step part of
case main part. Likely 2 figures x 3 days 85 1
DETAILED DESCRIPTION OF THE INVENTION This invention relates to a small-sized
microphone.-Is the back electrode of the microphone unit printed on the substrate of the
integrated circuit (hereinafter abbreviated as IC) to form an integrated structure of the IC and the
back electrode? From the above, it is intended to obtain a very small and thin microphone as the
chamber l used in the conventional microphone of this type is unnecessary. Hereinafter, the
present invention will be described with reference to the illustrated embodiment. 1 is a part of a
case in which a sound passage 2 is formed, 3 is a main part of a case which is combined with a
lid 1 to store and fix a microphone unit, 4 Is a sliding plate attached to the inner surface of the lid
portion 1 of the case, 5 is a skewer, 6 is a load electrode printed on the IO substrate 7, 8 is an
electrode of 9 and the load electrode 6 and the electrode 8 of Xa Are conducted through the
through holes 10VJ. , 11 are the number of terminals attached to the main part 3 of the case for
deriving the microphone terminals. This microphone is printed on the substrate 7 of the unit's
charge & 6 V 109 and integrated into the IC and the electrode, inserted into the main part 3 of
the case and placed on the step 12 to become a rear volume below the one step A closed
chamber is formed, and the upper side of the base & 7 is overlapped via the lid 1t spacer 5 with
the sliding plate 4 stretched, and the projecting piece 14 of the main portion 3 of the case is bent
to cover the case lid 1v A chamber (short cylinder shape) used conventionally for securing and
assembling the load electrode, the substrate 0, etc. by fixing the lid ff11, the spacer 5, the
substrate 7, etc. toward the stepped portion 12 while bonding. Spacer of one plant)! The
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microphone can be made extremely small and thin as unnecessary. As an example of the
implementation, the finished microphones were extremely thin and compact, with a thickness of
1.6 * 5 [5,5, 6.8 W]. As such, it is difficult to pick up on kf 'because it is small, hooked behind the
earlobe, suitable for use in a hearing aid by putting it on a temple of glasses, and can be
effectively used for other uses of each chopstick It is.
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