Electret condenser microphone and method of producing the same
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United States of America Patent
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Apr 20, 2010
Grant Date -
Nov 8, 2007
app pub date -
Apr 25, 2007
filing date -
Apr 25, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of producing an electret condenser microphone capable of reflow mounting includes a first step of providing a backplate substrate having a backplate; a second step of providing an adhesive-backed fluorine-containing resin film formed by stacking an adhesive on a film-shaped fluorine-containing resin material having a surface treated by wet or dry chemical etching; a third step of stacking the adhesive-backed fluorine-containing resin sheet on the backplate of the backplate substrate with the adhesive interposed therebetween; a fourth step of setting the adhesive to firmly secure the fluorine-containing resin material to the backplate of the backplate substrate; and a fifth step of implanting electric charges into the fluorine-containing resin film firmly secured onto the backplate.
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International Classification(s)
- B23P:OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVE....
- H04R:LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR ....
- G11B:INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BET....
- H01F:MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF M....
- H01G:CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWI....
- G01V:GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING ....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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