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US 2002/0172383 A1Published application
Condenser microphone and method for manufacturing condenser microphones
AssigneeCitizen Electronics Co., Ltd.
InventorsHaruhisa Tanabe, Megumi Horiuchi
Life of this patent
Estimating the term…
Abstract
A back plate having a stationary back electrode is secured to a substrate. A diaphragm electrode is mounted on the back plate interposing a spacer. A frame having a sound collecting hole is mounted on the diaphragm electrode.
Claims7
A condenser microphone comprising:
- a substrate;
- a back plate having a stationary back electrode and secured to the substrate;
- a spacer mounted on the back plate;
- a diaphragm electrode on the spacer;
- and
- a frame having a sound collecting hole and mounted on the diaphragm electrode.
3 more elements
A method for manufacturing condenser microphones comprising the steps of;
- preparing a substrate aggregation having a plurality of divisions, and a substrate being provided in each of the divisions;
- preparing a back plate aggregation having a stationary back electrode at each division;
- preparing a spacer aggregation having an opening at each division;
- preparing a frame aggregation having a sound collecting hole at each division and a diaphragm electrode on the underside of the frame aggregation around the sound collecting hole;
- stacking said aggregations and adhering the aggregations to each other to form an assembly of aggregations;
- cutting the assembly of aggregations to separate a condenser microphone at each division.
3 more elements
Dependencies are inferred from the claim text.