Title:
An electret structure, a manufacturing method for the same, and an electrostatic induction type conversion element
Document Type and Number:
Japanese Patent JP6214054
Kind Code:
B2
Abstract:
An electret-structure encompasses a fluorine-resin film 21, an electrode 22 formed on one surface of the fluorine-resin film 21, and a silica layer 21 formed on another surface of the fluorine-resin film 21. The silica layer 21 is implemented by a plurality of island-shaped silica regions 201 for covering the fluorine-resin film 21 in a topology such that the island-shaped silica regions 201 are isolated from each other. And negative charges are deposited on the island-shaped silica regions 201. The static-induction conversion element with the electret-structure 1 can be mounted on a substrate by reflow-process through Pb-free solder.
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Inventors:
Kensuke Kageyama
Application Number:
JP2014511202A
Publication Date:
October 18, 2017
Filing Date:
April 12, 2013
Export Citation:
Assignee:
Saitama University
International Classes:
H01G7/02; H04R19/01; H04R31/00
Domestic Patent References:
| JP2008112781A |
Foreign References:
| WO2008053793A1 |
Attorney, Agent or Firm:
Suzuki Isobe
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