ELECTRET STRUCTURE AND METHOD FOR MANUFACTURING SAME, AND ELECTROSTATIC INDUCTION-TYPE CONVERSION ELEMENT

• 特願2012-093900 (2012.4.17) JP

Provided is an electret structure (1) having: a fluorine resin film (21)

a back electrode (22) formed on one surface of the fluorine resin film (21)

and a silica layer (20) formed on the other surface of the fluorine resin film (21)

the silica layer (20) comprising a plurality of insular silica regions (201) covering the fluorine resin film (21) in a mutually isolated state, a negative charge being attached to the insular silica regions (201). An electrostatic induction-type conversion element in which the electret structure (1) is used can be mounted on a substrate by reflow using a Pb-free solder.

• NATIONAL UNIVERSITY CORPORATION SAITAMA UNIVERSITY

• KAGEYAMA KENSUKE

• H01G   7/02      エレクトレット，すなわち永久双極子を有するもの
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