Electrets from plasma polymerized material

H - Electricity – 04 – R

Patent

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Details

356/196, 349/69,

H04R 19/01 (2006.01) B05D 7/24 (2006.01) H01G 7/02 (2006.01)

Patent

CA 1141020

ABSTRACT OF THE DISCLOSURE This invention relates to devices having electrets. The invention provides the improvement wherein the electret of the device, comprises a film of a plasma polymerized dielectric material having a volumetric space charge, which is generally uniform in the space charge.

337980

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